./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c66b7135-86c5-4319-826a-5830d424bd9d/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c66b7135-86c5-4319-826a-5830d424bd9d/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c66b7135-86c5-4319-826a-5830d424bd9d/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c66b7135-86c5-4319-826a-5830d424bd9d/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c66b7135-86c5-4319-826a-5830d424bd9d/bin/uautomizer-QkZJyEgLgS/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c66b7135-86c5-4319-826a-5830d424bd9d/bin/uautomizer-QkZJyEgLgS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f1ef95a35179200d99984d58302d18a6584e38a2849111bfe4f263e2c30aaebc --- 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-4e7fbc6 [2022-11-23 03:38:28,895 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 03:38:28,897 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 03:38:28,933 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 03:38:28,935 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 03:38:28,936 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 03:38:28,939 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 03:38:28,944 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 03:38:28,946 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 03:38:28,949 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 03:38:28,950 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 03:38:28,954 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 03:38:28,955 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 03:38:28,959 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 03:38:28,963 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 03:38:28,965 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 03:38:28,967 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 03:38:28,973 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 03:38:28,975 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 03:38:28,977 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 03:38:28,982 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 03:38:28,983 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 03:38:28,986 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 03:38:28,987 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 03:38:28,991 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 03:38:28,997 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 03:38:28,997 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 03:38:28,998 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 03:38:29,000 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 03:38:29,003 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 03:38:29,005 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 03:38:29,006 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 03:38:29,007 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 03:38:29,009 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 03:38:29,011 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 03:38:29,012 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 03:38:29,013 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 03:38:29,014 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 03:38:29,014 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 03:38:29,016 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 03:38:29,017 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 03:38:29,018 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c66b7135-86c5-4319-826a-5830d424bd9d/bin/uautomizer-QkZJyEgLgS/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-23 03:38:29,058 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 03:38:29,058 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 03:38:29,059 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 03:38:29,059 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 03:38:29,060 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 03:38:29,060 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 03:38:29,061 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 03:38:29,061 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 03:38:29,061 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 03:38:29,061 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 03:38:29,061 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 03:38:29,062 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 03:38:29,062 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 03:38:29,062 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 03:38:29,062 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 03:38:29,062 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 03:38:29,062 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 03:38:29,063 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 03:38:29,063 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 03:38:29,063 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 03:38:29,063 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 03:38:29,063 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 03:38:29,064 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 03:38:29,064 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 03:38:29,064 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:38:29,064 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 03:38:29,064 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 03:38:29,065 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 03:38:29,065 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 03:38:29,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 03:38:29,065 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 03:38:29,065 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 03:38:29,066 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 03:38:29,066 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 03:38:29,066 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_c66b7135-86c5-4319-826a-5830d424bd9d/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c66b7135-86c5-4319-826a-5830d424bd9d/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1ef95a35179200d99984d58302d18a6584e38a2849111bfe4f263e2c30aaebc [2022-11-23 03:38:29,375 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 03:38:29,413 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 03:38:29,416 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 03:38:29,417 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 03:38:29,418 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 03:38:29,420 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c66b7135-86c5-4319-826a-5830d424bd9d/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i [2022-11-23 03:38:32,603 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 03:38:32,888 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 03:38:32,888 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c66b7135-86c5-4319-826a-5830d424bd9d/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i [2022-11-23 03:38:32,911 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c66b7135-86c5-4319-826a-5830d424bd9d/bin/uautomizer-QkZJyEgLgS/data/df5823600/b5806558064545b3ae68c89a9d1804c3/FLAGedca2475a [2022-11-23 03:38:32,927 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c66b7135-86c5-4319-826a-5830d424bd9d/bin/uautomizer-QkZJyEgLgS/data/df5823600/b5806558064545b3ae68c89a9d1804c3 [2022-11-23 03:38:32,930 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 03:38:32,932 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 03:38:32,933 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 03:38:32,934 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 03:38:32,938 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 03:38:32,939 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:38:32" (1/1) ... [2022-11-23 03:38:32,941 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@296128a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:32, skipping insertion in model container [2022-11-23 03:38:32,941 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:38:32" (1/1) ... [2022-11-23 03:38:32,950 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 03:38:32,985 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 03:38:33,172 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_c66b7135-86c5-4319-826a-5830d424bd9d/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i[1103,1116] [2022-11-23 03:38:33,339 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:38:33,355 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 03:38:33,370 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_c66b7135-86c5-4319-826a-5830d424bd9d/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i[1103,1116] [2022-11-23 03:38:33,404 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:38:33,445 INFO L208 MainTranslator]: Completed translation [2022-11-23 03:38:33,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:33 WrapperNode [2022-11-23 03:38:33,446 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 03:38:33,447 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 03:38:33,448 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 03:38:33,448 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 03:38:33,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:33" (1/1) ... [2022-11-23 03:38:33,472 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:33" (1/1) ... [2022-11-23 03:38:33,494 INFO L138 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2022-11-23 03:38:33,494 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 03:38:33,495 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 03:38:33,495 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 03:38:33,496 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 03:38:33,506 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:33" (1/1) ... [2022-11-23 03:38:33,506 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:33" (1/1) ... [2022-11-23 03:38:33,509 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:33" (1/1) ... [2022-11-23 03:38:33,510 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:33" (1/1) ... [2022-11-23 03:38:33,514 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:33" (1/1) ... [2022-11-23 03:38:33,516 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:33" (1/1) ... [2022-11-23 03:38:33,518 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:33" (1/1) ... [2022-11-23 03:38:33,519 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:33" (1/1) ... [2022-11-23 03:38:33,522 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 03:38:33,523 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 03:38:33,523 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 03:38:33,523 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 03:38:33,525 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:33" (1/1) ... [2022-11-23 03:38:33,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:38:33,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c66b7135-86c5-4319-826a-5830d424bd9d/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:38:33,580 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c66b7135-86c5-4319-826a-5830d424bd9d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 03:38:33,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c66b7135-86c5-4319-826a-5830d424bd9d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 03:38:33,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 03:38:33,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 03:38:33,642 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-23 03:38:33,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 03:38:33,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 03:38:33,643 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-23 03:38:33,643 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-23 03:38:33,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 03:38:33,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 03:38:33,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 03:38:33,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 03:38:33,646 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 03:38:33,811 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 03:38:33,814 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 03:38:34,089 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 03:38:34,103 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 03:38:34,103 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 03:38:34,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:38:34 BoogieIcfgContainer [2022-11-23 03:38:34,118 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 03:38:34,121 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 03:38:34,121 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 03:38:34,125 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 03:38:34,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:38:32" (1/3) ... [2022-11-23 03:38:34,126 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64ba8de6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:38:34, skipping insertion in model container [2022-11-23 03:38:34,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:33" (2/3) ... [2022-11-23 03:38:34,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64ba8de6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:38:34, skipping insertion in model container [2022-11-23 03:38:34,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:38:34" (3/3) ... [2022-11-23 03:38:34,129 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_1_pos.i [2022-11-23 03:38:34,146 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 03:38:34,158 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 03:38:34,158 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 03:38:34,158 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 03:38:34,224 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-23 03:38:34,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 74 places, 71 transitions, 150 flow [2022-11-23 03:38:34,382 INFO L130 PetriNetUnfolder]: 1/70 cut-off events. [2022-11-23 03:38:34,394 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-23 03:38:34,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 70 events. 1/70 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 36 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2022-11-23 03:38:34,402 INFO L82 GeneralOperation]: Start removeDead. Operand has 74 places, 71 transitions, 150 flow [2022-11-23 03:38:34,406 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 56 transitions, 115 flow [2022-11-23 03:38:34,412 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 03:38:34,444 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 56 transitions, 115 flow [2022-11-23 03:38:34,454 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 56 transitions, 115 flow [2022-11-23 03:38:34,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 56 transitions, 115 flow [2022-11-23 03:38:34,488 INFO L130 PetriNetUnfolder]: 0/56 cut-off events. [2022-11-23 03:38:34,493 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 03:38:34,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 56 events. 0/56 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 19 event pairs, 0 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-23 03:38:34,495 INFO L119 LiptonReduction]: Number of co-enabled transitions 280 [2022-11-23 03:38:37,906 INFO L134 LiptonReduction]: Checked pairs total: 372 [2022-11-23 03:38:37,907 INFO L136 LiptonReduction]: Total number of compositions: 49 [2022-11-23 03:38:37,932 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 03:38:37,940 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@6155339e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 03:38:37,941 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-23 03:38:37,945 INFO L130 PetriNetUnfolder]: 0/4 cut-off events. [2022-11-23 03:38:37,947 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 03:38:37,947 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:38:37,949 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-11-23 03:38:37,950 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-23 03:38:37,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:38:37,958 INFO L85 PathProgramCache]: Analyzing trace with hash 7401330, now seen corresponding path program 1 times [2022-11-23 03:38:37,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:38:37,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166896959] [2022-11-23 03:38:37,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:38:37,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:38:38,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:38:38,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:38:38,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:38:38,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166896959] [2022-11-23 03:38:38,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166896959] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:38:38,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:38:38,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 03:38:38,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143762123] [2022-11-23 03:38:38,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:38:38,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:38:38,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:38:38,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:38:38,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:38:38,478 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 120 [2022-11-23 03:38:38,482 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 11 places, 7 transitions, 17 flow. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 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) [2022-11-23 03:38:38,482 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:38:38,483 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 120 [2022-11-23 03:38:38,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:38:38,525 INFO L130 PetriNetUnfolder]: 3/15 cut-off events. [2022-11-23 03:38:38,525 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 03:38:38,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35 conditions, 15 events. 3/15 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 16 event pairs, 2 based on Foata normal form. 3/18 useless extension candidates. Maximal degree in co-relation 26. Up to 11 conditions per place. [2022-11-23 03:38:38,527 INFO L137 encePairwiseOnDemand]: 116/120 looper letters, 5 selfloop transitions, 3 changer transitions 0/8 dead transitions. [2022-11-23 03:38:38,528 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 13 places, 8 transitions, 35 flow [2022-11-23 03:38:38,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:38:38,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 03:38:38,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 201 transitions. [2022-11-23 03:38:38,545 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5583333333333333 [2022-11-23 03:38:38,546 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 201 transitions. [2022-11-23 03:38:38,547 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 201 transitions. [2022-11-23 03:38:38,548 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:38:38,551 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 201 transitions. [2022-11-23 03:38:38,554 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 67.0) internal successors, (201), 3 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) [2022-11-23 03:38:38,560 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 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) [2022-11-23 03:38:38,561 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 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) [2022-11-23 03:38:38,563 INFO L175 Difference]: Start difference. First operand has 11 places, 7 transitions, 17 flow. Second operand 3 states and 201 transitions. [2022-11-23 03:38:38,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 13 places, 8 transitions, 35 flow [2022-11-23 03:38:38,567 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 12 places, 8 transitions, 34 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-23 03:38:38,569 INFO L231 Difference]: Finished difference. Result has 13 places, 7 transitions, 27 flow [2022-11-23 03:38:38,571 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=16, PETRI_DIFFERENCE_MINUEND_PLACES=10, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=4, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=27, PETRI_PLACES=13, PETRI_TRANSITIONS=7} [2022-11-23 03:38:38,576 INFO L288 CegarLoopForPetriNet]: 11 programPoint places, 2 predicate places. [2022-11-23 03:38:38,576 INFO L495 AbstractCegarLoop]: Abstraction has has 13 places, 7 transitions, 27 flow [2022-11-23 03:38:38,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 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) [2022-11-23 03:38:38,577 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:38:38,577 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 03:38:38,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 03:38:38,578 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-23 03:38:38,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:38:38,590 INFO L85 PathProgramCache]: Analyzing trace with hash 229441620, now seen corresponding path program 1 times [2022-11-23 03:38:38,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:38:38,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392872391] [2022-11-23 03:38:38,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:38:38,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:38:38,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:38:38,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:38:38,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:38:38,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392872391] [2022-11-23 03:38:38,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392872391] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:38:38,961 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:38:38,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:38:38,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777991034] [2022-11-23 03:38:38,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:38:38,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 03:38:38,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:38:38,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 03:38:38,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-23 03:38:39,029 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 120 [2022-11-23 03:38:39,030 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 13 places, 7 transitions, 27 flow. Second operand has 4 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 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) [2022-11-23 03:38:39,030 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:38:39,030 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 120 [2022-11-23 03:38:39,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:38:39,057 INFO L130 PetriNetUnfolder]: 1/9 cut-off events. [2022-11-23 03:38:39,057 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-23 03:38:39,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28 conditions, 9 events. 1/9 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 4 event pairs, 0 based on Foata normal form. 2/11 useless extension candidates. Maximal degree in co-relation 17. Up to 5 conditions per place. [2022-11-23 03:38:39,058 INFO L137 encePairwiseOnDemand]: 116/120 looper letters, 0 selfloop transitions, 0 changer transitions 7/7 dead transitions. [2022-11-23 03:38:39,058 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 15 places, 7 transitions, 39 flow [2022-11-23 03:38:39,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 03:38:39,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-23 03:38:39,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 245 transitions. [2022-11-23 03:38:39,067 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5104166666666666 [2022-11-23 03:38:39,067 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 245 transitions. [2022-11-23 03:38:39,068 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 245 transitions. [2022-11-23 03:38:39,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:38:39,071 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 245 transitions. [2022-11-23 03:38:39,073 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 61.25) internal successors, (245), 4 states have internal predecessors, (245), 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) [2022-11-23 03:38:39,076 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 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) [2022-11-23 03:38:39,077 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 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) [2022-11-23 03:38:39,077 INFO L175 Difference]: Start difference. First operand has 13 places, 7 transitions, 27 flow. Second operand 4 states and 245 transitions. [2022-11-23 03:38:39,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 15 places, 7 transitions, 39 flow [2022-11-23 03:38:39,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 12 places, 7 transitions, 30 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-23 03:38:39,079 INFO L231 Difference]: Finished difference. Result has 12 places, 0 transitions, 0 flow [2022-11-23 03:38:39,079 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=14, PETRI_DIFFERENCE_MINUEND_PLACES=9, 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=4, PETRI_FLOW=0, PETRI_PLACES=12, PETRI_TRANSITIONS=0} [2022-11-23 03:38:39,080 INFO L288 CegarLoopForPetriNet]: 11 programPoint places, 1 predicate places. [2022-11-23 03:38:39,080 INFO L495 AbstractCegarLoop]: Abstraction has has 12 places, 0 transitions, 0 flow [2022-11-23 03:38:39,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 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) [2022-11-23 03:38:39,084 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-11-23 03:38:39,086 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-11-23 03:38:39,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 03:38:39,087 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-23 03:38:39,095 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-23 03:38:39,095 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 03:38:39,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:38:39 BasicIcfg [2022-11-23 03:38:39,105 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 03:38:39,105 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 03:38:39,105 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 03:38:39,106 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 03:38:39,106 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:38:34" (3/4) ... [2022-11-23 03:38:39,110 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 03:38:39,117 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-23 03:38:39,124 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-23 03:38:39,125 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-23 03:38:39,125 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-23 03:38:39,125 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 03:38:39,181 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c66b7135-86c5-4319-826a-5830d424bd9d/bin/uautomizer-QkZJyEgLgS/witness.graphml [2022-11-23 03:38:39,182 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 03:38:39,183 INFO L158 Benchmark]: Toolchain (without parser) took 6250.99ms. Allocated memory was 182.5MB in the beginning and 224.4MB in the end (delta: 41.9MB). Free memory was 136.5MB in the beginning and 121.6MB in the end (delta: 14.9MB). Peak memory consumption was 57.4MB. Max. memory is 16.1GB. [2022-11-23 03:38:39,183 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 117.4MB. Free memory is still 66.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 03:38:39,183 INFO L158 Benchmark]: CACSL2BoogieTranslator took 512.97ms. Allocated memory is still 182.5MB. Free memory was 136.5MB in the beginning and 117.1MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-23 03:38:39,184 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.31ms. Allocated memory is still 182.5MB. Free memory was 117.1MB in the beginning and 115.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 03:38:39,186 INFO L158 Benchmark]: Boogie Preprocessor took 26.72ms. Allocated memory is still 182.5MB. Free memory was 115.0MB in the beginning and 114.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 03:38:39,187 INFO L158 Benchmark]: RCFGBuilder took 595.70ms. Allocated memory is still 182.5MB. Free memory was 114.0MB in the beginning and 100.8MB in the end (delta: 13.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-23 03:38:39,188 INFO L158 Benchmark]: TraceAbstraction took 4983.78ms. Allocated memory was 182.5MB in the beginning and 224.4MB in the end (delta: 41.9MB). Free memory was 100.3MB in the beginning and 123.7MB in the end (delta: -23.4MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. [2022-11-23 03:38:39,188 INFO L158 Benchmark]: Witness Printer took 76.65ms. Allocated memory is still 224.4MB. Free memory was 123.7MB in the beginning and 121.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 03:38:39,191 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 117.4MB. Free memory is still 66.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 512.97ms. Allocated memory is still 182.5MB. Free memory was 136.5MB in the beginning and 117.1MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.31ms. Allocated memory is still 182.5MB. Free memory was 117.1MB in the beginning and 115.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.72ms. Allocated memory is still 182.5MB. Free memory was 115.0MB in the beginning and 114.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 595.70ms. Allocated memory is still 182.5MB. Free memory was 114.0MB in the beginning and 100.8MB in the end (delta: 13.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4983.78ms. Allocated memory was 182.5MB in the beginning and 224.4MB in the end (delta: 41.9MB). Free memory was 100.3MB in the beginning and 123.7MB in the end (delta: -23.4MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. * Witness Printer took 76.65ms. Allocated memory is still 224.4MB. Free memory was 123.7MB in the beginning and 121.6MB 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: 3.5s, 60 PlacesBefore, 11 PlacesAfterwards, 56 TransitionsBefore, 7 TransitionsAfterwards, 280 CoEnabledTransitionPairs, 6 FixpointIterations, 30 TrivialSequentialCompositions, 19 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 49 TotalNumberOfCompositions, 372 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 276, independent: 230, independent conditional: 0, independent unconditional: 230, dependent: 46, dependent conditional: 0, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 207, independent: 182, independent conditional: 0, independent unconditional: 182, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 207, independent: 174, independent conditional: 0, independent unconditional: 174, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 33, independent: 8, independent conditional: 0, independent unconditional: 8, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 138, independent: 26, independent conditional: 0, independent unconditional: 26, dependent: 112, dependent conditional: 0, dependent unconditional: 112, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 276, independent: 48, independent conditional: 0, independent unconditional: 48, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 207, unknown conditional: 0, unknown unconditional: 207] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 4, Positive conditional cache size: 0, Positive unconditional cache size: 4, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 87 locations, 2 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: 4.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 65 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 27 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 66 IncrementalHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 4 mSDtfsCounter, 66 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=1, InterpolantAutomatonStates: 7, 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, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 30 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-23 03:38:39,230 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c66b7135-86c5-4319-826a-5830d424bd9d/bin/uautomizer-QkZJyEgLgS/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