./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_31-traces-mine-vs-mutex_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_666bda4f-c41f-4c7e-86ef-fff819c6983a/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666bda4f-c41f-4c7e-86ef-fff819c6983a/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666bda4f-c41f-4c7e-86ef-fff819c6983a/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666bda4f-c41f-4c7e-86ef-fff819c6983a/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_31-traces-mine-vs-mutex_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666bda4f-c41f-4c7e-86ef-fff819c6983a/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666bda4f-c41f-4c7e-86ef-fff819c6983a/bin/uautomizer-uyxdKDjOR8 --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 16b41d7352a3e7bca6c65d29839f35cd9a045339e5497acb7d0d6bf7ecef2ad7 --- 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-2329fc7 [2022-12-13 20:12:40,469 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 20:12:40,470 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 20:12:40,489 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 20:12:40,489 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 20:12:40,490 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 20:12:40,491 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 20:12:40,493 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 20:12:40,494 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 20:12:40,495 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 20:12:40,496 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 20:12:40,497 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 20:12:40,498 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 20:12:40,499 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 20:12:40,500 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 20:12:40,501 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 20:12:40,501 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 20:12:40,502 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 20:12:40,504 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 20:12:40,506 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 20:12:40,507 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 20:12:40,508 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 20:12:40,509 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 20:12:40,509 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 20:12:40,511 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 20:12:40,511 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 20:12:40,512 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 20:12:40,512 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 20:12:40,512 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 20:12:40,513 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 20:12:40,513 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 20:12:40,514 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 20:12:40,514 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 20:12:40,515 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 20:12:40,515 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 20:12:40,515 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 20:12:40,516 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 20:12:40,516 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 20:12:40,516 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 20:12:40,517 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 20:12:40,517 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 20:12:40,518 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666bda4f-c41f-4c7e-86ef-fff819c6983a/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 20:12:40,532 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 20:12:40,532 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 20:12:40,532 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 20:12:40,532 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 20:12:40,532 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 20:12:40,533 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 20:12:40,533 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 20:12:40,533 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 20:12:40,533 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 20:12:40,533 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 20:12:40,533 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 20:12:40,534 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 20:12:40,534 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 20:12:40,534 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 20:12:40,534 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 20:12:40,534 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 20:12:40,534 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 20:12:40,534 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 20:12:40,534 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 20:12:40,534 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 20:12:40,534 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 20:12:40,534 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 20:12:40,535 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 20:12:40,535 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 20:12:40,535 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:12:40,535 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 20:12:40,535 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 20:12:40,535 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 20:12:40,535 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 20:12:40,535 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 20:12:40,535 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 20:12:40,535 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 20:12:40,536 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 20:12:40,536 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 20:12:40,536 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 20:12:40,536 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_666bda4f-c41f-4c7e-86ef-fff819c6983a/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666bda4f-c41f-4c7e-86ef-fff819c6983a/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16b41d7352a3e7bca6c65d29839f35cd9a045339e5497acb7d0d6bf7ecef2ad7 [2022-12-13 20:12:40,708 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 20:12:40,724 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 20:12:40,727 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 20:12:40,728 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 20:12:40,728 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 20:12:40,730 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666bda4f-c41f-4c7e-86ef-fff819c6983a/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/13-privatized_31-traces-mine-vs-mutex_true.i [2022-12-13 20:12:43,384 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 20:12:43,542 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 20:12:43,542 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666bda4f-c41f-4c7e-86ef-fff819c6983a/sv-benchmarks/c/goblint-regression/13-privatized_31-traces-mine-vs-mutex_true.i [2022-12-13 20:12:43,551 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666bda4f-c41f-4c7e-86ef-fff819c6983a/bin/uautomizer-uyxdKDjOR8/data/b8f814d5a/2519c795f02a4be1b36bd5dbe23d6b6e/FLAG18b5570be [2022-12-13 20:12:43,561 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666bda4f-c41f-4c7e-86ef-fff819c6983a/bin/uautomizer-uyxdKDjOR8/data/b8f814d5a/2519c795f02a4be1b36bd5dbe23d6b6e [2022-12-13 20:12:43,563 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 20:12:43,564 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 20:12:43,565 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 20:12:43,565 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 20:12:43,568 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 20:12:43,568 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:12:43" (1/1) ... [2022-12-13 20:12:43,569 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b9d04c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:12:43, skipping insertion in model container [2022-12-13 20:12:43,569 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:12:43" (1/1) ... [2022-12-13 20:12:43,574 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 20:12:43,600 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 20:12:43,706 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_666bda4f-c41f-4c7e-86ef-fff819c6983a/sv-benchmarks/c/goblint-regression/13-privatized_31-traces-mine-vs-mutex_true.i[1097,1110] [2022-12-13 20:12:43,813 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:12:43,823 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 20:12:43,832 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_666bda4f-c41f-4c7e-86ef-fff819c6983a/sv-benchmarks/c/goblint-regression/13-privatized_31-traces-mine-vs-mutex_true.i[1097,1110] [2022-12-13 20:12:43,862 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:12:43,885 INFO L208 MainTranslator]: Completed translation [2022-12-13 20:12:43,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:12:43 WrapperNode [2022-12-13 20:12:43,886 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 20:12:43,887 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 20:12:43,887 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 20:12:43,887 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 20:12:43,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:12:43" (1/1) ... [2022-12-13 20:12:43,903 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:12:43" (1/1) ... [2022-12-13 20:12:43,918 INFO L138 Inliner]: procedures = 162, calls = 31, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 55 [2022-12-13 20:12:43,919 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 20:12:43,919 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 20:12:43,919 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 20:12:43,920 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 20:12:43,926 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:12:43" (1/1) ... [2022-12-13 20:12:43,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:12:43" (1/1) ... [2022-12-13 20:12:43,929 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:12:43" (1/1) ... [2022-12-13 20:12:43,930 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:12:43" (1/1) ... [2022-12-13 20:12:43,934 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:12:43" (1/1) ... [2022-12-13 20:12:43,936 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:12:43" (1/1) ... [2022-12-13 20:12:43,937 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:12:43" (1/1) ... [2022-12-13 20:12:43,938 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:12:43" (1/1) ... [2022-12-13 20:12:43,941 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 20:12:43,941 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 20:12:43,942 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 20:12:43,942 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 20:12:43,942 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:12:43" (1/1) ... [2022-12-13 20:12:43,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:12:43,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666bda4f-c41f-4c7e-86ef-fff819c6983a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:12:43,970 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666bda4f-c41f-4c7e-86ef-fff819c6983a/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 20:12:43,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666bda4f-c41f-4c7e-86ef-fff819c6983a/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 20:12:44,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 20:12:44,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 20:12:44,005 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 20:12:44,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 20:12:44,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 20:12:44,005 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 20:12:44,005 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 20:12:44,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 20:12:44,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 20:12:44,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 20:12:44,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 20:12:44,007 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 20:12:44,095 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 20:12:44,096 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 20:12:44,238 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 20:12:44,243 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 20:12:44,243 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 20:12:44,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:12:44 BoogieIcfgContainer [2022-12-13 20:12:44,251 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 20:12:44,252 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 20:12:44,252 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 20:12:44,256 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 20:12:44,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 08:12:43" (1/3) ... [2022-12-13 20:12:44,257 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42571921 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:12:44, skipping insertion in model container [2022-12-13 20:12:44,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:12:43" (2/3) ... [2022-12-13 20:12:44,257 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42571921 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:12:44, skipping insertion in model container [2022-12-13 20:12:44,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:12:44" (3/3) ... [2022-12-13 20:12:44,258 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_31-traces-mine-vs-mutex_true.i [2022-12-13 20:12:44,264 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 20:12:44,272 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 20:12:44,273 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 20:12:44,273 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 20:12:44,314 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-13 20:12:44,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 84 places, 81 transitions, 170 flow [2022-12-13 20:12:44,375 INFO L130 PetriNetUnfolder]: 1/80 cut-off events. [2022-12-13 20:12:44,375 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 20:12:44,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 80 events. 1/80 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 48 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 40. Up to 2 conditions per place. [2022-12-13 20:12:44,378 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 81 transitions, 170 flow [2022-12-13 20:12:44,381 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 65 transitions, 133 flow [2022-12-13 20:12:44,384 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 20:12:44,392 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 65 transitions, 133 flow [2022-12-13 20:12:44,394 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 65 transitions, 133 flow [2022-12-13 20:12:44,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 69 places, 65 transitions, 133 flow [2022-12-13 20:12:44,409 INFO L130 PetriNetUnfolder]: 0/65 cut-off events. [2022-12-13 20:12:44,409 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:12:44,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 65 events. 0/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 29 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-12-13 20:12:44,410 INFO L119 LiptonReduction]: Number of co-enabled transitions 540 [2022-12-13 20:12:46,078 INFO L134 LiptonReduction]: Checked pairs total: 1231 [2022-12-13 20:12:46,079 INFO L136 LiptonReduction]: Total number of compositions: 50 [2022-12-13 20:12:46,089 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 20:12:46,093 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;@62b19539, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 20:12:46,094 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 20:12:46,096 INFO L130 PetriNetUnfolder]: 0/11 cut-off events. [2022-12-13 20:12:46,096 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:12:46,097 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:12:46,097 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:12:46,097 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 20:12:46,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:12:46,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1423105499, now seen corresponding path program 1 times [2022-12-13 20:12:46,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:12:46,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031794656] [2022-12-13 20:12:46,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:12:46,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:12:46,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:12:46,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:12:46,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:12:46,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031794656] [2022-12-13 20:12:46,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031794656] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:12:46,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:12:46,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 20:12:46,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257631528] [2022-12-13 20:12:46,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:12:46,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:12:46,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:12:46,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:12:46,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:12:46,361 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 131 [2022-12-13 20:12:46,364 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 15 transitions, 33 flow. Second operand has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 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) [2022-12-13 20:12:46,364 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:12:46,364 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 131 [2022-12-13 20:12:46,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:12:46,412 INFO L130 PetriNetUnfolder]: 32/83 cut-off events. [2022-12-13 20:12:46,412 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:12:46,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 83 events. 32/83 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 209 event pairs, 12 based on Foata normal form. 3/86 useless extension candidates. Maximal degree in co-relation 157. Up to 55 conditions per place. [2022-12-13 20:12:46,414 INFO L137 encePairwiseOnDemand]: 128/131 looper letters, 16 selfloop transitions, 2 changer transitions 0/19 dead transitions. [2022-12-13 20:12:46,414 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 19 transitions, 77 flow [2022-12-13 20:12:46,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:12:46,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 20:12:46,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 241 transitions. [2022-12-13 20:12:46,423 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6132315521628499 [2022-12-13 20:12:46,424 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 241 transitions. [2022-12-13 20:12:46,424 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 241 transitions. [2022-12-13 20:12:46,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:12:46,427 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 241 transitions. [2022-12-13 20:12:46,429 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 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) [2022-12-13 20:12:46,432 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 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) [2022-12-13 20:12:46,432 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 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) [2022-12-13 20:12:46,434 INFO L175 Difference]: Start difference. First operand has 19 places, 15 transitions, 33 flow. Second operand 3 states and 241 transitions. [2022-12-13 20:12:46,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 19 transitions, 77 flow [2022-12-13 20:12:46,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 19 transitions, 76 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 20:12:46,437 INFO L231 Difference]: Finished difference. Result has 21 places, 15 transitions, 40 flow [2022-12-13 20:12:46,438 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=40, PETRI_PLACES=21, PETRI_TRANSITIONS=15} [2022-12-13 20:12:46,441 INFO L288 CegarLoopForPetriNet]: 19 programPoint places, 2 predicate places. [2022-12-13 20:12:46,441 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 15 transitions, 40 flow [2022-12-13 20:12:46,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 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) [2022-12-13 20:12:46,441 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:12:46,441 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:12:46,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 20:12:46,441 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 20:12:46,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:12:46,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1642578554, now seen corresponding path program 1 times [2022-12-13 20:12:46,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:12:46,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393033795] [2022-12-13 20:12:46,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:12:46,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:12:46,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:12:46,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:12:46,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:12:46,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393033795] [2022-12-13 20:12:46,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393033795] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:12:46,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:12:46,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 20:12:46,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363230434] [2022-12-13 20:12:46,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:12:46,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:12:46,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:12:46,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:12:46,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:12:46,552 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 131 [2022-12-13 20:12:46,552 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 15 transitions, 40 flow. Second operand has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 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) [2022-12-13 20:12:46,553 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:12:46,553 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 131 [2022-12-13 20:12:46,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:12:46,596 INFO L130 PetriNetUnfolder]: 16/60 cut-off events. [2022-12-13 20:12:46,596 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 20:12:46,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 60 events. 16/60 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 130 event pairs, 8 based on Foata normal form. 13/73 useless extension candidates. Maximal degree in co-relation 126. Up to 31 conditions per place. [2022-12-13 20:12:46,597 INFO L137 encePairwiseOnDemand]: 123/131 looper letters, 12 selfloop transitions, 8 changer transitions 0/20 dead transitions. [2022-12-13 20:12:46,597 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 20 transitions, 92 flow [2022-12-13 20:12:46,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:12:46,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 20:12:46,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 222 transitions. [2022-12-13 20:12:46,599 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5648854961832062 [2022-12-13 20:12:46,599 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 222 transitions. [2022-12-13 20:12:46,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 222 transitions. [2022-12-13 20:12:46,600 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:12:46,600 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 222 transitions. [2022-12-13 20:12:46,601 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 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) [2022-12-13 20:12:46,603 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 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) [2022-12-13 20:12:46,604 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 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) [2022-12-13 20:12:46,604 INFO L175 Difference]: Start difference. First operand has 21 places, 15 transitions, 40 flow. Second operand 3 states and 222 transitions. [2022-12-13 20:12:46,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 20 transitions, 92 flow [2022-12-13 20:12:46,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 20 transitions, 88 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 20:12:46,605 INFO L231 Difference]: Finished difference. Result has 22 places, 17 transitions, 68 flow [2022-12-13 20:12:46,606 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=68, PETRI_PLACES=22, PETRI_TRANSITIONS=17} [2022-12-13 20:12:46,606 INFO L288 CegarLoopForPetriNet]: 19 programPoint places, 3 predicate places. [2022-12-13 20:12:46,606 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 17 transitions, 68 flow [2022-12-13 20:12:46,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 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) [2022-12-13 20:12:46,607 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:12:46,607 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:12:46,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 20:12:46,607 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 20:12:46,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:12:46,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1091205199, now seen corresponding path program 1 times [2022-12-13 20:12:46,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:12:46,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507193330] [2022-12-13 20:12:46,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:12:46,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:12:46,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:12:46,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:12:46,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:12:46,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507193330] [2022-12-13 20:12:46,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507193330] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:12:46,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:12:46,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 20:12:46,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833114951] [2022-12-13 20:12:46,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:12:46,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 20:12:46,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:12:46,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 20:12:46,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 20:12:46,792 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 131 [2022-12-13 20:12:46,792 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 17 transitions, 68 flow. Second operand has 5 states, 5 states have (on average 69.2) internal successors, (346), 5 states have internal predecessors, (346), 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) [2022-12-13 20:12:46,792 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:12:46,792 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 131 [2022-12-13 20:12:46,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:12:46,823 INFO L130 PetriNetUnfolder]: 6/36 cut-off events. [2022-12-13 20:12:46,823 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-12-13 20:12:46,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 36 events. 6/36 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 51 event pairs, 1 based on Foata normal form. 9/45 useless extension candidates. Maximal degree in co-relation 105. Up to 26 conditions per place. [2022-12-13 20:12:46,824 INFO L137 encePairwiseOnDemand]: 127/131 looper letters, 14 selfloop transitions, 5 changer transitions 0/19 dead transitions. [2022-12-13 20:12:46,824 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 19 transitions, 116 flow [2022-12-13 20:12:46,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 20:12:46,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 20:12:46,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 287 transitions. [2022-12-13 20:12:46,826 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5477099236641222 [2022-12-13 20:12:46,826 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 287 transitions. [2022-12-13 20:12:46,826 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 287 transitions. [2022-12-13 20:12:46,827 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:12:46,827 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 287 transitions. [2022-12-13 20:12:46,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 71.75) internal successors, (287), 4 states have internal predecessors, (287), 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) [2022-12-13 20:12:46,830 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 131.0) internal successors, (655), 5 states have internal predecessors, (655), 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) [2022-12-13 20:12:46,830 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 131.0) internal successors, (655), 5 states have internal predecessors, (655), 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) [2022-12-13 20:12:46,830 INFO L175 Difference]: Start difference. First operand has 22 places, 17 transitions, 68 flow. Second operand 4 states and 287 transitions. [2022-12-13 20:12:46,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 19 transitions, 116 flow [2022-12-13 20:12:46,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 19 transitions, 106 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 20:12:46,832 INFO L231 Difference]: Finished difference. Result has 24 places, 17 transitions, 70 flow [2022-12-13 20:12:46,832 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=70, PETRI_PLACES=24, PETRI_TRANSITIONS=17} [2022-12-13 20:12:46,832 INFO L288 CegarLoopForPetriNet]: 19 programPoint places, 5 predicate places. [2022-12-13 20:12:46,833 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 17 transitions, 70 flow [2022-12-13 20:12:46,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.2) internal successors, (346), 5 states have internal predecessors, (346), 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) [2022-12-13 20:12:46,833 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:12:46,833 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:12:46,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 20:12:46,833 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 20:12:46,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:12:46,834 INFO L85 PathProgramCache]: Analyzing trace with hash 77472804, now seen corresponding path program 1 times [2022-12-13 20:12:46,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:12:46,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710103092] [2022-12-13 20:12:46,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:12:46,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:12:46,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:12:46,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:12:46,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:12:46,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710103092] [2022-12-13 20:12:46,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710103092] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:12:46,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:12:46,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 20:12:46,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137512057] [2022-12-13 20:12:46,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:12:46,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 20:12:46,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:12:46,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 20:12:46,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 20:12:46,971 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 131 [2022-12-13 20:12:46,972 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 17 transitions, 70 flow. Second operand has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 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) [2022-12-13 20:12:46,972 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:12:46,972 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 131 [2022-12-13 20:12:46,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:12:46,999 INFO L130 PetriNetUnfolder]: 6/35 cut-off events. [2022-12-13 20:12:46,999 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-13 20:12:47,000 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 35 events. 6/35 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 4 based on Foata normal form. 1/36 useless extension candidates. Maximal degree in co-relation 98. Up to 27 conditions per place. [2022-12-13 20:12:47,000 INFO L137 encePairwiseOnDemand]: 127/131 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2022-12-13 20:12:47,000 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 18 transitions, 108 flow [2022-12-13 20:12:47,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 20:12:47,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 20:12:47,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 312 transitions. [2022-12-13 20:12:47,001 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5954198473282443 [2022-12-13 20:12:47,001 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 312 transitions. [2022-12-13 20:12:47,001 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 312 transitions. [2022-12-13 20:12:47,001 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:12:47,001 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 312 transitions. [2022-12-13 20:12:47,002 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 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) [2022-12-13 20:12:47,003 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 131.0) internal successors, (655), 5 states have internal predecessors, (655), 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) [2022-12-13 20:12:47,003 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 131.0) internal successors, (655), 5 states have internal predecessors, (655), 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) [2022-12-13 20:12:47,003 INFO L175 Difference]: Start difference. First operand has 24 places, 17 transitions, 70 flow. Second operand 4 states and 312 transitions. [2022-12-13 20:12:47,003 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 18 transitions, 108 flow [2022-12-13 20:12:47,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 18 transitions, 101 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 20:12:47,004 INFO L231 Difference]: Finished difference. Result has 23 places, 0 transitions, 0 flow [2022-12-13 20:12:47,004 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=59, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=23, PETRI_TRANSITIONS=0} [2022-12-13 20:12:47,004 INFO L288 CegarLoopForPetriNet]: 19 programPoint places, 4 predicate places. [2022-12-13 20:12:47,004 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 0 transitions, 0 flow [2022-12-13 20:12:47,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 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) [2022-12-13 20:12:47,006 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-13 20:12:47,007 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-12-13 20:12:47,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 20:12:47,007 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-12-13 20:12:47,009 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 20:12:47,010 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 20:12:47,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 08:12:47 BasicIcfg [2022-12-13 20:12:47,012 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 20:12:47,013 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 20:12:47,013 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 20:12:47,013 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 20:12:47,013 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:12:44" (3/4) ... [2022-12-13 20:12:47,015 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 20:12:47,021 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-12-13 20:12:47,023 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-12-13 20:12:47,023 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 20:12:47,023 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 20:12:47,023 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 20:12:47,047 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666bda4f-c41f-4c7e-86ef-fff819c6983a/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 20:12:47,047 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 20:12:47,048 INFO L158 Benchmark]: Toolchain (without parser) took 3483.30ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 84.2MB in the beginning and 63.8MB in the end (delta: 20.4MB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB. [2022-12-13 20:12:47,048 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 119.5MB. Free memory is still 91.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:12:47,048 INFO L158 Benchmark]: CACSL2BoogieTranslator took 321.04ms. Allocated memory is still 119.5MB. Free memory was 83.8MB in the beginning and 64.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 20:12:47,048 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.20ms. Allocated memory is still 119.5MB. Free memory was 64.9MB in the beginning and 62.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 20:12:47,049 INFO L158 Benchmark]: Boogie Preprocessor took 21.36ms. Allocated memory is still 119.5MB. Free memory was 62.8MB in the beginning and 61.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:12:47,049 INFO L158 Benchmark]: RCFGBuilder took 309.58ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 61.4MB in the beginning and 115.1MB in the end (delta: -53.7MB). Peak memory consumption was 22.8MB. Max. memory is 16.1GB. [2022-12-13 20:12:47,049 INFO L158 Benchmark]: TraceAbstraction took 2760.03ms. Allocated memory is still 144.7MB. Free memory was 114.4MB in the beginning and 66.9MB in the end (delta: 47.5MB). Peak memory consumption was 47.9MB. Max. memory is 16.1GB. [2022-12-13 20:12:47,050 INFO L158 Benchmark]: Witness Printer took 34.56ms. Allocated memory is still 144.7MB. Free memory was 66.9MB in the beginning and 63.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 20:12:47,051 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 119.5MB. Free memory is still 91.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 321.04ms. Allocated memory is still 119.5MB. Free memory was 83.8MB in the beginning and 64.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.20ms. Allocated memory is still 119.5MB. Free memory was 64.9MB in the beginning and 62.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.36ms. Allocated memory is still 119.5MB. Free memory was 62.8MB in the beginning and 61.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 309.58ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 61.4MB in the beginning and 115.1MB in the end (delta: -53.7MB). Peak memory consumption was 22.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2760.03ms. Allocated memory is still 144.7MB. Free memory was 114.4MB in the beginning and 66.9MB in the end (delta: 47.5MB). Peak memory consumption was 47.9MB. Max. memory is 16.1GB. * Witness Printer took 34.56ms. Allocated memory is still 144.7MB. Free memory was 66.9MB in the beginning and 63.8MB in the end (delta: 3.1MB). 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: 1.7s, 69 PlacesBefore, 19 PlacesAfterwards, 65 TransitionsBefore, 15 TransitionsAfterwards, 540 CoEnabledTransitionPairs, 6 FixpointIterations, 30 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 50 TotalNumberOfCompositions, 1231 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 519, independent: 388, independent conditional: 0, independent unconditional: 388, dependent: 131, dependent conditional: 0, dependent unconditional: 131, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 277, independent: 249, independent conditional: 0, independent unconditional: 249, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 519, independent: 139, independent conditional: 0, independent unconditional: 139, dependent: 103, dependent conditional: 0, dependent unconditional: 103, unknown: 277, unknown conditional: 0, unknown unconditional: 277] , Statistics on independence cache: Total cache size (in pairs): 21, Positive cache size: 7, Positive conditional cache size: 0, Positive unconditional cache size: 7, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, 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, 101 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: 2.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 156 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 74 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 41 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 206 IncrementalHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 41 mSolverCounterUnsat, 24 mSDtfsCounter, 206 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=70occurred in iteration=3, InterpolantAutomatonStates: 14, 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, 0.4s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 164 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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! [2022-12-13 20:12:47,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666bda4f-c41f-4c7e-86ef-fff819c6983a/bin/uautomizer-uyxdKDjOR8/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