./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_51-mutex_ptr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 38b53e6a 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_787a65e5-853d-4c4c-bb51-ee591894a5d0/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787a65e5-853d-4c4c-bb51-ee591894a5d0/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787a65e5-853d-4c4c-bb51-ee591894a5d0/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787a65e5-853d-4c4c-bb51-ee591894a5d0/bin/utaipan-ByfvJB40ur/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_51-mutex_ptr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787a65e5-853d-4c4c-bb51-ee591894a5d0/bin/utaipan-ByfvJB40ur/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787a65e5-853d-4c4c-bb51-ee591894a5d0/bin/utaipan-ByfvJB40ur --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 676d96662ae61a9d27f232e6ef1f1837cf504ffa210b7be2fd6286f04a0fe098 --- 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-38b53e6 [2022-11-25 23:17:45,553 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:17:45,555 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:17:45,583 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:17:45,590 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:17:45,591 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:17:45,592 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:17:45,593 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:17:45,595 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:17:45,596 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:17:45,597 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:17:45,598 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:17:45,598 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:17:45,605 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:17:45,608 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:17:45,609 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:17:45,611 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:17:45,616 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:17:45,619 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:17:45,626 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:17:45,629 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:17:45,632 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:17:45,635 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:17:45,636 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:17:45,641 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:17:45,642 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:17:45,642 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:17:45,643 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:17:45,643 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:17:45,644 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:17:45,644 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:17:45,645 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:17:45,646 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:17:45,647 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:17:45,647 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:17:45,648 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:17:45,648 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:17:45,649 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:17:45,649 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:17:45,650 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:17:45,651 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:17:45,656 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787a65e5-853d-4c4c-bb51-ee591894a5d0/bin/utaipan-ByfvJB40ur/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-25 23:17:45,690 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:17:45,691 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:17:45,691 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:17:45,692 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:17:45,693 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:17:45,693 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:17:45,693 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:17:45,693 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:17:45,694 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:17:45,694 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:17:45,695 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:17:45,695 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:17:45,695 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:17:45,696 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:17:45,696 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:17:45,696 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:17:45,696 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:17:45,697 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:17:45,697 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 23:17:45,698 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 23:17:45,698 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:17:45,698 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 23:17:45,698 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 23:17:45,699 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:17:45,699 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 23:17:45,699 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:17:45,699 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-25 23:17:45,700 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-25 23:17:45,700 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-25 23:17:45,700 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:17:45,701 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 23:17:45,701 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 23:17:45,701 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:17:45,701 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:17:45,702 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:17:45,702 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:17:45,702 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:17:45,702 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:17:45,703 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:17:45,703 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:17:45,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:17:45,703 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:17:45,704 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_787a65e5-853d-4c4c-bb51-ee591894a5d0/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787a65e5-853d-4c4c-bb51-ee591894a5d0/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 676d96662ae61a9d27f232e6ef1f1837cf504ffa210b7be2fd6286f04a0fe098 [2022-11-25 23:17:46,021 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:17:46,054 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:17:46,059 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:17:46,060 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:17:46,061 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:17:46,062 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787a65e5-853d-4c4c-bb51-ee591894a5d0/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/goblint-regression/04-mutex_51-mutex_ptr.i [2022-11-25 23:17:49,080 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:17:49,374 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:17:49,375 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787a65e5-853d-4c4c-bb51-ee591894a5d0/sv-benchmarks/c/goblint-regression/04-mutex_51-mutex_ptr.i [2022-11-25 23:17:49,391 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787a65e5-853d-4c4c-bb51-ee591894a5d0/bin/utaipan-ByfvJB40ur/data/c0937c87e/2d80f9775ced450ea071bf6a096471ff/FLAG8c08de416 [2022-11-25 23:17:49,423 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787a65e5-853d-4c4c-bb51-ee591894a5d0/bin/utaipan-ByfvJB40ur/data/c0937c87e/2d80f9775ced450ea071bf6a096471ff [2022-11-25 23:17:49,426 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:17:49,428 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:17:49,429 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:17:49,430 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:17:49,433 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:17:49,434 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:17:49" (1/1) ... [2022-11-25 23:17:49,435 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24ba4ed1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:17:49, skipping insertion in model container [2022-11-25 23:17:49,436 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:17:49" (1/1) ... [2022-11-25 23:17:49,443 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:17:49,487 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:17:50,065 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:17:50,090 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:17:50,152 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:17:50,199 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:17:50,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:17:50 WrapperNode [2022-11-25 23:17:50,199 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:17:50,200 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:17:50,201 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:17:50,201 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:17:50,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:17:50" (1/1) ... [2022-11-25 23:17:50,236 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:17:50" (1/1) ... [2022-11-25 23:17:50,273 INFO L138 Inliner]: procedures = 262, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 49 [2022-11-25 23:17:50,274 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:17:50,275 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:17:50,275 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:17:50,276 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:17:50,285 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:17:50" (1/1) ... [2022-11-25 23:17:50,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:17:50" (1/1) ... [2022-11-25 23:17:50,298 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:17:50" (1/1) ... [2022-11-25 23:17:50,300 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:17:50" (1/1) ... [2022-11-25 23:17:50,306 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:17:50" (1/1) ... [2022-11-25 23:17:50,314 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:17:50" (1/1) ... [2022-11-25 23:17:50,316 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:17:50" (1/1) ... [2022-11-25 23:17:50,324 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:17:50" (1/1) ... [2022-11-25 23:17:50,327 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:17:50,334 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:17:50,334 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:17:50,334 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:17:50,335 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:17:50" (1/1) ... [2022-11-25 23:17:50,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:17:50,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787a65e5-853d-4c4c-bb51-ee591894a5d0/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:17:50,370 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787a65e5-853d-4c4c-bb51-ee591894a5d0/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:17:50,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787a65e5-853d-4c4c-bb51-ee591894a5d0/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:17:50,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:17:50,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:17:50,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 23:17:50,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 23:17:50,423 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-25 23:17:50,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:17:50,423 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-25 23:17:50,424 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-25 23:17:50,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:17:50,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:17:50,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:17:50,426 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 23:17:50,628 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:17:50,630 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:17:50,836 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:17:50,844 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:17:50,844 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 23:17:50,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:17:50 BoogieIcfgContainer [2022-11-25 23:17:50,847 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:17:50,850 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:17:50,850 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:17:50,854 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:17:50,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:17:49" (1/3) ... [2022-11-25 23:17:50,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e7ae29c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:17:50, skipping insertion in model container [2022-11-25 23:17:50,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:17:50" (2/3) ... [2022-11-25 23:17:50,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e7ae29c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:17:50, skipping insertion in model container [2022-11-25 23:17:50,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:17:50" (3/3) ... [2022-11-25 23:17:50,858 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_51-mutex_ptr.i [2022-11-25 23:17:50,880 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:17:50,881 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2022-11-25 23:17:50,881 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 23:17:50,970 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-25 23:17:51,030 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 23:17:51,056 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 82 transitions, 172 flow [2022-11-25 23:17:51,058 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 82 transitions, 172 flow [2022-11-25 23:17:51,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 86 places, 82 transitions, 172 flow [2022-11-25 23:17:51,127 INFO L130 PetriNetUnfolder]: 0/81 cut-off events. [2022-11-25 23:17:51,127 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-25 23:17:51,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 81 events. 0/81 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 76 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-11-25 23:17:51,134 INFO L119 LiptonReduction]: Number of co-enabled transitions 512 [2022-11-25 23:17:55,093 INFO L134 LiptonReduction]: Checked pairs total: 1982 [2022-11-25 23:17:55,093 INFO L136 LiptonReduction]: Total number of compositions: 85 [2022-11-25 23:17:55,101 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 27 transitions, 62 flow [2022-11-25 23:17:55,121 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 114 states, 77 states have (on average 2.6103896103896105) internal successors, (201), 113 states have internal predecessors, (201), 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) [2022-11-25 23:17:55,140 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:17:55,146 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;@5fd602b4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:17:55,147 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-11-25 23:17:55,149 INFO L276 IsEmpty]: Start isEmpty. Operand has 114 states, 77 states have (on average 2.6103896103896105) internal successors, (201), 113 states have internal predecessors, (201), 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) [2022-11-25 23:17:55,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-25 23:17:55,154 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:17:55,155 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-25 23:17:55,155 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2022-11-25 23:17:55,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:17:55,161 INFO L85 PathProgramCache]: Analyzing trace with hash 297, now seen corresponding path program 1 times [2022-11-25 23:17:55,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:17:55,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472010335] [2022-11-25 23:17:55,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:17:55,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:17:55,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:17:55,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:17:55,311 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:17:55,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472010335] [2022-11-25 23:17:55,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472010335] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:17:55,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:17:55,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-25 23:17:55,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926309997] [2022-11-25 23:17:55,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:17:55,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 23:17:55,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:17:55,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 23:17:55,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 23:17:55,353 INFO L87 Difference]: Start difference. First operand has 114 states, 77 states have (on average 2.6103896103896105) internal successors, (201), 113 states have internal predecessors, (201), 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) [2022-11-25 23:17:55,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:17:55,410 INFO L93 Difference]: Finished difference Result 74 states and 127 transitions. [2022-11-25 23:17:55,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 23:17:55,412 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 [2022-11-25 23:17:55,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:17:55,423 INFO L225 Difference]: With dead ends: 74 [2022-11-25 23:17:55,423 INFO L226 Difference]: Without dead ends: 74 [2022-11-25 23:17:55,424 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 [2022-11-25 23:17:55,430 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:17:55,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:17:55,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-11-25 23:17:55,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2022-11-25 23:17:55,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 59 states have (on average 2.152542372881356) internal successors, (127), 73 states have internal predecessors, (127), 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) [2022-11-25 23:17:55,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 127 transitions. [2022-11-25 23:17:55,484 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 127 transitions. Word has length 1 [2022-11-25 23:17:55,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:17:55,485 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 127 transitions. [2022-11-25 23:17:55,485 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) [2022-11-25 23:17:55,486 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 127 transitions. [2022-11-25 23:17:55,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-25 23:17:55,487 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:17:55,487 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-25 23:17:55,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:17:55,488 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2022-11-25 23:17:55,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:17:55,489 INFO L85 PathProgramCache]: Analyzing trace with hash 290313, now seen corresponding path program 1 times [2022-11-25 23:17:55,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:17:55,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608159818] [2022-11-25 23:17:55,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:17:55,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:17:55,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:17:55,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:17:55,765 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:17:55,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608159818] [2022-11-25 23:17:55,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608159818] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:17:55,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:17:55,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 23:17:55,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644171518] [2022-11-25 23:17:55,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:17:55,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:17:55,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:17:55,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:17:55,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:17:55,768 INFO L87 Difference]: Start difference. First operand 74 states and 127 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:17:55,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:17:55,804 INFO L93 Difference]: Finished difference Result 58 states and 97 transitions. [2022-11-25 23:17:55,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:17:55,806 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-25 23:17:55,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:17:55,807 INFO L225 Difference]: With dead ends: 58 [2022-11-25 23:17:55,807 INFO L226 Difference]: Without dead ends: 58 [2022-11-25 23:17:55,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:17:55,808 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 14 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:17:55,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 1 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:17:55,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-11-25 23:17:55,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2022-11-25 23:17:55,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 50 states have (on average 1.94) internal successors, (97), 57 states have internal predecessors, (97), 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) [2022-11-25 23:17:55,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 97 transitions. [2022-11-25 23:17:55,816 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 97 transitions. Word has length 3 [2022-11-25 23:17:55,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:17:55,816 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 97 transitions. [2022-11-25 23:17:55,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:17:55,817 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 97 transitions. [2022-11-25 23:17:55,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-25 23:17:55,817 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:17:55,817 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-25 23:17:55,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 23:17:55,818 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2022-11-25 23:17:55,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:17:55,818 INFO L85 PathProgramCache]: Analyzing trace with hash 290314, now seen corresponding path program 1 times [2022-11-25 23:17:55,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:17:55,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705601157] [2022-11-25 23:17:55,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:17:55,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:17:55,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:17:55,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:17:55,929 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:17:55,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705601157] [2022-11-25 23:17:55,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705601157] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:17:55,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:17:55,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 23:17:55,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017821668] [2022-11-25 23:17:55,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:17:55,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:17:55,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:17:55,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:17:55,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:17:55,932 INFO L87 Difference]: Start difference. First operand 58 states and 97 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:17:55,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:17:55,972 INFO L93 Difference]: Finished difference Result 44 states and 71 transitions. [2022-11-25 23:17:55,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:17:55,973 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-25 23:17:55,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:17:55,974 INFO L225 Difference]: With dead ends: 44 [2022-11-25 23:17:55,974 INFO L226 Difference]: Without dead ends: 44 [2022-11-25 23:17:55,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:17:55,975 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 13 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:17:55,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:17:55,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-11-25 23:17:55,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-11-25 23:17:55,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 41 states have (on average 1.7317073170731707) internal successors, (71), 43 states have internal predecessors, (71), 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) [2022-11-25 23:17:55,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 71 transitions. [2022-11-25 23:17:55,980 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 71 transitions. Word has length 3 [2022-11-25 23:17:55,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:17:55,981 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 71 transitions. [2022-11-25 23:17:55,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:17:55,981 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 71 transitions. [2022-11-25 23:17:55,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-25 23:17:55,982 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:17:55,982 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 23:17:55,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 23:17:55,982 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2022-11-25 23:17:55,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:17:55,983 INFO L85 PathProgramCache]: Analyzing trace with hash 58408731, now seen corresponding path program 1 times [2022-11-25 23:17:55,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:17:55,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151646373] [2022-11-25 23:17:55,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:17:55,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:17:56,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:17:56,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:17:56,115 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:17:56,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151646373] [2022-11-25 23:17:56,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151646373] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:17:56,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:17:56,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 23:17:56,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964876771] [2022-11-25 23:17:56,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:17:56,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:17:56,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:17:56,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:17:56,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:17:56,120 INFO L87 Difference]: Start difference. First operand 44 states and 71 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:17:56,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:17:56,149 INFO L93 Difference]: Finished difference Result 39 states and 62 transitions. [2022-11-25 23:17:56,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:17:56,150 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-25 23:17:56,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:17:56,151 INFO L225 Difference]: With dead ends: 39 [2022-11-25 23:17:56,151 INFO L226 Difference]: Without dead ends: 39 [2022-11-25 23:17:56,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:17:56,155 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 8 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1 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 [2022-11-25 23:17:56,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:17:56,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-11-25 23:17:56,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-11-25 23:17:56,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 37 states have (on average 1.6756756756756757) internal successors, (62), 38 states have internal predecessors, (62), 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) [2022-11-25 23:17:56,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 62 transitions. [2022-11-25 23:17:56,160 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 62 transitions. Word has length 6 [2022-11-25 23:17:56,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:17:56,160 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 62 transitions. [2022-11-25 23:17:56,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:17:56,161 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 62 transitions. [2022-11-25 23:17:56,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-25 23:17:56,161 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:17:56,161 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 23:17:56,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 23:17:56,162 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2022-11-25 23:17:56,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:17:56,162 INFO L85 PathProgramCache]: Analyzing trace with hash 58408732, now seen corresponding path program 1 times [2022-11-25 23:17:56,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:17:56,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512315488] [2022-11-25 23:17:56,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:17:56,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:17:56,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:17:56,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:17:56,249 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:17:56,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512315488] [2022-11-25 23:17:56,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512315488] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:17:56,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:17:56,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 23:17:56,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767913734] [2022-11-25 23:17:56,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:17:56,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:17:56,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:17:56,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:17:56,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:17:56,260 INFO L87 Difference]: Start difference. First operand 39 states and 62 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:17:56,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:17:56,282 INFO L93 Difference]: Finished difference Result 34 states and 53 transitions. [2022-11-25 23:17:56,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:17:56,283 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-25 23:17:56,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:17:56,285 INFO L225 Difference]: With dead ends: 34 [2022-11-25 23:17:56,285 INFO L226 Difference]: Without dead ends: 34 [2022-11-25 23:17:56,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:17:56,287 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 7 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:17:56,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:17:56,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-11-25 23:17:56,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-11-25 23:17:56,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.606060606060606) internal successors, (53), 33 states have internal predecessors, (53), 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) [2022-11-25 23:17:56,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 53 transitions. [2022-11-25 23:17:56,297 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 53 transitions. Word has length 6 [2022-11-25 23:17:56,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:17:56,297 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 53 transitions. [2022-11-25 23:17:56,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:17:56,298 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 53 transitions. [2022-11-25 23:17:56,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-25 23:17:56,299 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:17:56,299 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:17:56,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 23:17:56,300 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2022-11-25 23:17:56,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:17:56,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1190673109, now seen corresponding path program 1 times [2022-11-25 23:17:56,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:17:56,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577664949] [2022-11-25 23:17:56,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:17:56,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:17:56,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:17:56,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:17:56,492 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:17:56,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577664949] [2022-11-25 23:17:56,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577664949] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:17:56,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:17:56,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 23:17:56,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244580436] [2022-11-25 23:17:56,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:17:56,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:17:56,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:17:56,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:17:56,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:17:56,494 INFO L87 Difference]: Start difference. First operand 34 states and 53 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2022-11-25 23:17:56,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:17:56,516 INFO L93 Difference]: Finished difference Result 33 states and 52 transitions. [2022-11-25 23:17:56,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:17:56,517 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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 13 [2022-11-25 23:17:56,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:17:56,517 INFO L225 Difference]: With dead ends: 33 [2022-11-25 23:17:56,517 INFO L226 Difference]: Without dead ends: 0 [2022-11-25 23:17:56,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:17:56,518 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:17:56,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:17:56,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-25 23:17:56,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-25 23:17:56,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-11-25 23:17:56,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 23:17:56,520 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2022-11-25 23:17:56,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:17:56,520 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 23:17:56,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2022-11-25 23:17:56,520 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-25 23:17:56,520 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-25 23:17:56,523 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 18 remaining) [2022-11-25 23:17:56,524 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 18 remaining) [2022-11-25 23:17:56,524 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 18 remaining) [2022-11-25 23:17:56,524 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 18 remaining) [2022-11-25 23:17:56,524 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 18 remaining) [2022-11-25 23:17:56,524 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 18 remaining) [2022-11-25 23:17:56,525 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 18 remaining) [2022-11-25 23:17:56,525 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 18 remaining) [2022-11-25 23:17:56,525 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (9 of 18 remaining) [2022-11-25 23:17:56,525 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 18 remaining) [2022-11-25 23:17:56,525 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 18 remaining) [2022-11-25 23:17:56,525 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 18 remaining) [2022-11-25 23:17:56,526 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 18 remaining) [2022-11-25 23:17:56,526 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 18 remaining) [2022-11-25 23:17:56,526 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 18 remaining) [2022-11-25 23:17:56,526 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 18 remaining) [2022-11-25 23:17:56,526 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 18 remaining) [2022-11-25 23:17:56,527 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 18 remaining) [2022-11-25 23:17:56,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 23:17:56,529 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-25 23:17:56,534 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 23:17:56,534 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 23:17:56,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 11:17:56 BasicIcfg [2022-11-25 23:17:56,537 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 23:17:56,538 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 23:17:56,538 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 23:17:56,538 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 23:17:56,538 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:17:50" (3/4) ... [2022-11-25 23:17:56,541 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 23:17:56,547 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-25 23:17:56,552 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-25 23:17:56,552 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-25 23:17:56,552 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-25 23:17:56,582 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787a65e5-853d-4c4c-bb51-ee591894a5d0/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-25 23:17:56,582 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 23:17:56,583 INFO L158 Benchmark]: Toolchain (without parser) took 7155.28ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 126.1MB in the beginning and 87.3MB in the end (delta: 38.9MB). Peak memory consumption was 72.4MB. Max. memory is 16.1GB. [2022-11-25 23:17:56,583 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 111.1MB. Free memory was 79.9MB in the beginning and 79.8MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:17:56,584 INFO L158 Benchmark]: CACSL2BoogieTranslator took 770.44ms. Allocated memory is still 167.8MB. Free memory was 125.6MB in the beginning and 119.5MB in the end (delta: 6.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-25 23:17:56,584 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.57ms. Allocated memory is still 167.8MB. Free memory was 119.5MB in the beginning and 117.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:17:56,584 INFO L158 Benchmark]: Boogie Preprocessor took 58.59ms. Allocated memory is still 167.8MB. Free memory was 117.4MB in the beginning and 115.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:17:56,584 INFO L158 Benchmark]: RCFGBuilder took 512.84ms. Allocated memory is still 167.8MB. Free memory was 115.9MB in the beginning and 101.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-25 23:17:56,585 INFO L158 Benchmark]: TraceAbstraction took 5687.54ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 100.6MB in the beginning and 89.4MB in the end (delta: 11.3MB). Peak memory consumption was 46.0MB. Max. memory is 16.1GB. [2022-11-25 23:17:56,585 INFO L158 Benchmark]: Witness Printer took 44.87ms. Allocated memory is still 201.3MB. Free memory was 89.4MB in the beginning and 87.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:17:56,587 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 111.1MB. Free memory was 79.9MB in the beginning and 79.8MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 770.44ms. Allocated memory is still 167.8MB. Free memory was 125.6MB in the beginning and 119.5MB in the end (delta: 6.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.57ms. Allocated memory is still 167.8MB. Free memory was 119.5MB in the beginning and 117.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.59ms. Allocated memory is still 167.8MB. Free memory was 117.4MB in the beginning and 115.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 512.84ms. Allocated memory is still 167.8MB. Free memory was 115.9MB in the beginning and 101.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 5687.54ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 100.6MB in the beginning and 89.4MB in the end (delta: 11.3MB). Peak memory consumption was 46.0MB. Max. memory is 16.1GB. * Witness Printer took 44.87ms. Allocated memory is still 201.3MB. Free memory was 89.4MB in the beginning and 87.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.0s, 86 PlacesBefore, 31 PlacesAfterwards, 82 TransitionsBefore, 27 TransitionsAfterwards, 512 CoEnabledTransitionPairs, 7 FixpointIterations, 52 TrivialSequentialCompositions, 33 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 85 TotalNumberOfCompositions, 1982 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1038, independent: 882, independent conditional: 0, independent unconditional: 882, dependent: 156, dependent conditional: 0, dependent unconditional: 156, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 447, independent: 419, independent conditional: 0, independent unconditional: 419, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 447, independent: 413, independent conditional: 0, independent unconditional: 413, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 34, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 175, independent: 34, independent conditional: 0, independent unconditional: 34, dependent: 141, dependent conditional: 0, dependent unconditional: 141, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1038, independent: 463, independent conditional: 0, independent unconditional: 463, dependent: 128, dependent conditional: 0, dependent unconditional: 128, unknown: 447, unknown conditional: 0, unknown unconditional: 447] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 59, Positive conditional cache size: 0, Positive unconditional cache size: 59, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, 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 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 930]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 101 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 5.5s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 42 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 42 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 85 IncrementalHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 8 mSDtfsCounter, 85 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=114occurred in iteration=0, InterpolantAutomatonStates: 17, 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 170 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 - AllSpecificationsHoldResult: All specifications hold 13 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-25 23:17:56,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787a65e5-853d-4c4c-bb51-ee591894a5d0/bin/utaipan-ByfvJB40ur/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: TRUE