./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_52-refine-protected-loop2-small_true.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_042f68a8-9ecf-4783-8749-abd972c2cd6a/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_042f68a8-9ecf-4783-8749-abd972c2cd6a/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_042f68a8-9ecf-4783-8749-abd972c2cd6a/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_042f68a8-9ecf-4783-8749-abd972c2cd6a/bin/uautomizer-ZsLfNo2U6R/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_52-refine-protected-loop2-small_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_042f68a8-9ecf-4783-8749-abd972c2cd6a/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_042f68a8-9ecf-4783-8749-abd972c2cd6a/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8627cbce136f39d723fc0eaadf7d8371bf261a07ec5ac59da2e79df34069083d --- 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 15:47:53,439 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 15:47:53,442 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 15:47:53,478 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 15:47:53,478 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 15:47:53,479 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 15:47:53,481 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 15:47:53,482 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 15:47:53,484 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 15:47:53,485 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 15:47:53,486 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 15:47:53,494 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 15:47:53,494 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 15:47:53,502 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 15:47:53,503 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 15:47:53,504 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 15:47:53,505 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 15:47:53,506 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 15:47:53,507 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 15:47:53,509 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 15:47:53,514 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 15:47:53,518 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 15:47:53,521 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 15:47:53,522 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 15:47:53,533 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 15:47:53,533 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 15:47:53,534 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 15:47:53,536 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 15:47:53,537 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 15:47:53,538 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 15:47:53,539 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 15:47:53,540 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 15:47:53,542 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 15:47:53,543 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 15:47:53,545 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 15:47:53,545 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 15:47:53,546 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 15:47:53,546 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 15:47:53,546 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 15:47:53,548 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 15:47:53,549 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 15:47:53,550 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_042f68a8-9ecf-4783-8749-abd972c2cd6a/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-25 15:47:53,584 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 15:47:53,585 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 15:47:53,586 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 15:47:53,586 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 15:47:53,587 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 15:47:53,587 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 15:47:53,588 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 15:47:53,588 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 15:47:53,588 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 15:47:53,589 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 15:47:53,590 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 15:47:53,590 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 15:47:53,590 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 15:47:53,591 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 15:47:53,591 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 15:47:53,591 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-25 15:47:53,591 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-25 15:47:53,591 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-25 15:47:53,592 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 15:47:53,592 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 15:47:53,592 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 15:47:53,592 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 15:47:53,592 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 15:47:53,593 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 15:47:53,593 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 15:47:53,593 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:47:53,593 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 15:47:53,594 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 15:47:53,594 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 15:47:53,594 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 15:47:53,595 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 15:47:53,595 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 15:47:53,595 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 15:47:53,596 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_042f68a8-9ecf-4783-8749-abd972c2cd6a/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_042f68a8-9ecf-4783-8749-abd972c2cd6a/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8627cbce136f39d723fc0eaadf7d8371bf261a07ec5ac59da2e79df34069083d [2022-11-25 15:47:53,881 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 15:47:53,920 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 15:47:53,923 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 15:47:53,925 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 15:47:53,925 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 15:47:53,927 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_042f68a8-9ecf-4783-8749-abd972c2cd6a/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/goblint-regression/13-privatized_52-refine-protected-loop2-small_true.i [2022-11-25 15:47:56,998 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 15:47:57,309 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 15:47:57,310 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_042f68a8-9ecf-4783-8749-abd972c2cd6a/sv-benchmarks/c/goblint-regression/13-privatized_52-refine-protected-loop2-small_true.i [2022-11-25 15:47:57,322 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_042f68a8-9ecf-4783-8749-abd972c2cd6a/bin/uautomizer-ZsLfNo2U6R/data/32e4e9fca/535037fbf63f4d8281a9074a4e5c163f/FLAG5eecc0f70 [2022-11-25 15:47:57,345 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_042f68a8-9ecf-4783-8749-abd972c2cd6a/bin/uautomizer-ZsLfNo2U6R/data/32e4e9fca/535037fbf63f4d8281a9074a4e5c163f [2022-11-25 15:47:57,347 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 15:47:57,349 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 15:47:57,351 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 15:47:57,351 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 15:47:57,355 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 15:47:57,356 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:47:57" (1/1) ... [2022-11-25 15:47:57,358 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47a68fc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:47:57, skipping insertion in model container [2022-11-25 15:47:57,359 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:47:57" (1/1) ... [2022-11-25 15:47:57,368 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 15:47:57,428 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 15:47:57,591 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_042f68a8-9ecf-4783-8749-abd972c2cd6a/sv-benchmarks/c/goblint-regression/13-privatized_52-refine-protected-loop2-small_true.i[1105,1118] [2022-11-25 15:47:57,802 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:47:57,820 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 15:47:57,835 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_042f68a8-9ecf-4783-8749-abd972c2cd6a/sv-benchmarks/c/goblint-regression/13-privatized_52-refine-protected-loop2-small_true.i[1105,1118] [2022-11-25 15:47:57,885 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:47:57,933 INFO L208 MainTranslator]: Completed translation [2022-11-25 15:47:57,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:47:57 WrapperNode [2022-11-25 15:47:57,934 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 15:47:57,935 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 15:47:57,936 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 15:47:57,936 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 15:47:57,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:47:57" (1/1) ... [2022-11-25 15:47:57,980 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:47:57" (1/1) ... [2022-11-25 15:47:58,004 INFO L138 Inliner]: procedures = 162, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 63 [2022-11-25 15:47:58,007 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 15:47:58,007 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 15:47:58,008 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 15:47:58,008 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 15:47:58,018 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:47:57" (1/1) ... [2022-11-25 15:47:58,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:47:57" (1/1) ... [2022-11-25 15:47:58,020 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:47:57" (1/1) ... [2022-11-25 15:47:58,020 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:47:57" (1/1) ... [2022-11-25 15:47:58,026 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:47:57" (1/1) ... [2022-11-25 15:47:58,030 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:47:57" (1/1) ... [2022-11-25 15:47:58,031 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:47:57" (1/1) ... [2022-11-25 15:47:58,043 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:47:57" (1/1) ... [2022-11-25 15:47:58,045 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 15:47:58,046 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 15:47:58,047 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 15:47:58,047 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 15:47:58,048 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:47:57" (1/1) ... [2022-11-25 15:47:58,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:47:58,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_042f68a8-9ecf-4783-8749-abd972c2cd6a/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:47:58,087 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_042f68a8-9ecf-4783-8749-abd972c2cd6a/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 15:47:58,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_042f68a8-9ecf-4783-8749-abd972c2cd6a/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 15:47:58,131 INFO L130 BoogieDeclarations]: Found specification of procedure worker [2022-11-25 15:47:58,132 INFO L138 BoogieDeclarations]: Found implementation of procedure worker [2022-11-25 15:47:58,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 15:47:58,132 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-25 15:47:58,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 15:47:58,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 15:47:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 15:47:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 15:47:58,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 15:47:58,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 15:47:58,137 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 15:47:58,283 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 15:47:58,286 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 15:47:58,528 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 15:47:58,535 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 15:47:58,536 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 15:47:58,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:47:58 BoogieIcfgContainer [2022-11-25 15:47:58,538 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 15:47:58,541 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 15:47:58,541 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 15:47:58,545 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 15:47:58,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 03:47:57" (1/3) ... [2022-11-25 15:47:58,546 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63a062ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:47:58, skipping insertion in model container [2022-11-25 15:47:58,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:47:57" (2/3) ... [2022-11-25 15:47:58,546 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63a062ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:47:58, skipping insertion in model container [2022-11-25 15:47:58,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:47:58" (3/3) ... [2022-11-25 15:47:58,548 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_52-refine-protected-loop2-small_true.i [2022-11-25 15:47:58,568 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 15:47:58,568 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-25 15:47:58,568 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 15:47:58,618 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 15:47:58,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 78 places, 78 transitions, 161 flow [2022-11-25 15:47:58,701 INFO L130 PetriNetUnfolder]: 4/77 cut-off events. [2022-11-25 15:47:58,701 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 15:47:58,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 77 events. 4/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 60 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2022-11-25 15:47:58,706 INFO L82 GeneralOperation]: Start removeDead. Operand has 78 places, 78 transitions, 161 flow [2022-11-25 15:47:58,711 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 77 transitions, 157 flow [2022-11-25 15:47:58,720 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 15:47:58,745 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 77 transitions, 157 flow [2022-11-25 15:47:58,748 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 77 transitions, 157 flow [2022-11-25 15:47:58,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 77 transitions, 157 flow [2022-11-25 15:47:58,778 INFO L130 PetriNetUnfolder]: 4/77 cut-off events. [2022-11-25 15:47:58,782 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 15:47:58,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 77 events. 4/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 60 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2022-11-25 15:47:58,786 INFO L119 LiptonReduction]: Number of co-enabled transitions 616 [2022-11-25 15:48:03,146 INFO L134 LiptonReduction]: Checked pairs total: 450 [2022-11-25 15:48:03,146 INFO L136 LiptonReduction]: Total number of compositions: 85 [2022-11-25 15:48:03,164 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 15:48:03,171 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=PETRI_NET, 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;@4c861223, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 15:48:03,172 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-25 15:48:03,173 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-11-25 15:48:03,174 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 15:48:03,174 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:48:03,174 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-11-25 15:48:03,175 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2022-11-25 15:48:03,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:48:03,181 INFO L85 PathProgramCache]: Analyzing trace with hash 318, now seen corresponding path program 1 times [2022-11-25 15:48:03,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:48:03,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576192437] [2022-11-25 15:48:03,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:48:03,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:48:03,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:48:03,321 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 15:48:03,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:48:03,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576192437] [2022-11-25 15:48:03,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576192437] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:48:03,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:48:03,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-25 15:48:03,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076026935] [2022-11-25 15:48:03,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:48:03,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 15:48:03,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:48:03,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 15:48:03,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 15:48:03,370 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 163 [2022-11-25 15:48:03,373 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 13 places, 10 transitions, 23 flow. Second operand has 2 states, 2 states have (on average 73.5) internal successors, (147), 2 states have internal predecessors, (147), 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 15:48:03,373 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:48:03,374 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 163 [2022-11-25 15:48:03,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:48:03,401 INFO L130 PetriNetUnfolder]: 3/10 cut-off events. [2022-11-25 15:48:03,401 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 15:48:03,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24 conditions, 10 events. 3/10 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 7 event pairs, 0 based on Foata normal form. 0/7 useless extension candidates. Maximal degree in co-relation 15. Up to 10 conditions per place. [2022-11-25 15:48:03,403 INFO L137 encePairwiseOnDemand]: 159/163 looper letters, 4 selfloop transitions, 0 changer transitions 1/6 dead transitions. [2022-11-25 15:48:03,403 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 10 places, 6 transitions, 25 flow [2022-11-25 15:48:03,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 15:48:03,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 15:48:03,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 155 transitions. [2022-11-25 15:48:03,418 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4754601226993865 [2022-11-25 15:48:03,419 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 155 transitions. [2022-11-25 15:48:03,419 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 155 transitions. [2022-11-25 15:48:03,421 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:48:03,423 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 155 transitions. [2022-11-25 15:48:03,426 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 77.5) internal successors, (155), 2 states have internal predecessors, (155), 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 15:48:03,437 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 163.0) internal successors, (489), 3 states have internal predecessors, (489), 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 15:48:03,438 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 163.0) internal successors, (489), 3 states have internal predecessors, (489), 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 15:48:03,440 INFO L175 Difference]: Start difference. First operand has 13 places, 10 transitions, 23 flow. Second operand 2 states and 155 transitions. [2022-11-25 15:48:03,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 10 places, 6 transitions, 25 flow [2022-11-25 15:48:03,444 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 9 places, 6 transitions, 24 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 15:48:03,455 INFO L231 Difference]: Finished difference. Result has 9 places, 5 transitions, 12 flow [2022-11-25 15:48:03,462 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=14, PETRI_DIFFERENCE_MINUEND_PLACES=8, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=6, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=12, PETRI_PLACES=9, PETRI_TRANSITIONS=5} [2022-11-25 15:48:03,466 INFO L288 CegarLoopForPetriNet]: 13 programPoint places, -4 predicate places. [2022-11-25 15:48:03,467 INFO L495 AbstractCegarLoop]: Abstraction has has 9 places, 5 transitions, 12 flow [2022-11-25 15:48:03,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 73.5) internal successors, (147), 2 states have internal predecessors, (147), 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 15:48:03,468 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:48:03,468 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-25 15:48:03,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 15:48:03,469 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2022-11-25 15:48:03,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:48:03,472 INFO L85 PathProgramCache]: Analyzing trace with hash 311196, now seen corresponding path program 1 times [2022-11-25 15:48:03,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:48:03,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016214627] [2022-11-25 15:48:03,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:48:03,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:48:03,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:48:03,758 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 15:48:03,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:48:03,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016214627] [2022-11-25 15:48:03,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016214627] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:48:03,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:48:03,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 15:48:03,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969381929] [2022-11-25 15:48:03,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:48:03,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:48:03,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:48:03,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:48:03,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:48:03,810 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 163 [2022-11-25 15:48:03,811 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 9 places, 5 transitions, 12 flow. Second operand has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 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 15:48:03,811 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:48:03,811 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 163 [2022-11-25 15:48:03,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:48:03,820 INFO L130 PetriNetUnfolder]: 1/4 cut-off events. [2022-11-25 15:48:03,820 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 15:48:03,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12 conditions, 4 events. 1/4 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 1 event pairs, 0 based on Foata normal form. 1/5 useless extension candidates. Maximal degree in co-relation 9. Up to 3 conditions per place. [2022-11-25 15:48:03,821 INFO L137 encePairwiseOnDemand]: 161/163 looper letters, 0 selfloop transitions, 0 changer transitions 4/4 dead transitions. [2022-11-25 15:48:03,821 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 9 places, 4 transitions, 16 flow [2022-11-25 15:48:03,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:48:03,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 15:48:03,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 211 transitions. [2022-11-25 15:48:03,829 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43149284253578735 [2022-11-25 15:48:03,829 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 211 transitions. [2022-11-25 15:48:03,830 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 211 transitions. [2022-11-25 15:48:03,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:48:03,833 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 211 transitions. [2022-11-25 15:48:03,835 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 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 15:48:03,837 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 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 15:48:03,838 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 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 15:48:03,838 INFO L175 Difference]: Start difference. First operand has 9 places, 5 transitions, 12 flow. Second operand 3 states and 211 transitions. [2022-11-25 15:48:03,838 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 9 places, 4 transitions, 16 flow [2022-11-25 15:48:03,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 9 places, 4 transitions, 16 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 15:48:03,839 INFO L231 Difference]: Finished difference. Result has 9 places, 0 transitions, 0 flow [2022-11-25 15:48:03,839 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=10, PETRI_DIFFERENCE_MINUEND_PLACES=7, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=4, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=4, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=9, PETRI_TRANSITIONS=0} [2022-11-25 15:48:03,840 INFO L288 CegarLoopForPetriNet]: 13 programPoint places, -4 predicate places. [2022-11-25 15:48:03,840 INFO L495 AbstractCegarLoop]: Abstraction has has 9 places, 0 transitions, 0 flow [2022-11-25 15:48:03,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 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 15:48:03,844 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 6 remaining) [2022-11-25 15:48:03,845 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 6 remaining) [2022-11-25 15:48:03,846 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (3 of 6 remaining) [2022-11-25 15:48:03,846 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2022-11-25 15:48:03,847 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 6 remaining) [2022-11-25 15:48:03,847 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 6 remaining) [2022-11-25 15:48:03,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 15:48:03,849 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-25 15:48:03,858 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 15:48:03,858 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 15:48:03,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 03:48:03 BasicIcfg [2022-11-25 15:48:03,869 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 15:48:03,870 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 15:48:03,870 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 15:48:03,871 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 15:48:03,871 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:47:58" (3/4) ... [2022-11-25 15:48:03,874 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 15:48:03,879 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure worker [2022-11-25 15:48:03,882 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-11-25 15:48:03,882 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-25 15:48:03,883 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-25 15:48:03,883 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-25 15:48:03,931 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_042f68a8-9ecf-4783-8749-abd972c2cd6a/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 15:48:03,932 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 15:48:03,932 INFO L158 Benchmark]: Toolchain (without parser) took 6583.75ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 123.1MB in the beginning and 66.5MB in the end (delta: 56.6MB). Peak memory consumption was 90.9MB. Max. memory is 16.1GB. [2022-11-25 15:48:03,933 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 113.2MB. Free memory is still 66.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:48:03,933 INFO L158 Benchmark]: CACSL2BoogieTranslator took 583.43ms. Allocated memory is still 155.2MB. Free memory was 123.1MB in the beginning and 103.9MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-25 15:48:03,934 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.42ms. Allocated memory is still 155.2MB. Free memory was 103.9MB in the beginning and 101.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:48:03,934 INFO L158 Benchmark]: Boogie Preprocessor took 38.20ms. Allocated memory is still 155.2MB. Free memory was 101.9MB in the beginning and 100.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:48:03,935 INFO L158 Benchmark]: RCFGBuilder took 491.86ms. Allocated memory is still 155.2MB. Free memory was 100.2MB in the beginning and 87.2MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 15:48:03,935 INFO L158 Benchmark]: TraceAbstraction took 5328.80ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 86.1MB in the beginning and 68.6MB in the end (delta: 17.5MB). Peak memory consumption was 51.0MB. Max. memory is 16.1GB. [2022-11-25 15:48:03,936 INFO L158 Benchmark]: Witness Printer took 61.81ms. Allocated memory is still 186.6MB. Free memory was 68.6MB in the beginning and 66.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:48:03,938 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 113.2MB. Free memory is still 66.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 583.43ms. Allocated memory is still 155.2MB. Free memory was 123.1MB in the beginning and 103.9MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.42ms. Allocated memory is still 155.2MB. Free memory was 103.9MB in the beginning and 101.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.20ms. Allocated memory is still 155.2MB. Free memory was 101.9MB in the beginning and 100.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 491.86ms. Allocated memory is still 155.2MB. Free memory was 100.2MB in the beginning and 87.2MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 5328.80ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 86.1MB in the beginning and 68.6MB in the end (delta: 17.5MB). Peak memory consumption was 51.0MB. Max. memory is 16.1GB. * Witness Printer took 61.81ms. Allocated memory is still 186.6MB. Free memory was 68.6MB in the beginning and 66.5MB 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: 4.4s, 77 PlacesBefore, 13 PlacesAfterwards, 77 TransitionsBefore, 10 TransitionsAfterwards, 616 CoEnabledTransitionPairs, 6 FixpointIterations, 42 TrivialSequentialCompositions, 30 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 3 ChoiceCompositions, 85 TotalNumberOfCompositions, 450 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 450, independent: 450, independent conditional: 0, independent unconditional: 450, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 393, independent: 393, independent conditional: 0, independent unconditional: 393, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 393, independent: 393, independent conditional: 0, independent unconditional: 393, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 450, independent: 57, independent conditional: 0, independent unconditional: 57, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 393, unknown conditional: 0, unknown unconditional: 393] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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: 699]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 19]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 101 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 40 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 36 IncrementalHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 0 mSDtfsCounter, 36 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-25 15:48:03,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_042f68a8-9ecf-4783-8749-abd972c2cd6a/bin/uautomizer-ZsLfNo2U6R/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