./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_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_9238c382-e701-4608-af2d-d41776fda0c1/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9238c382-e701-4608-af2d-d41776fda0c1/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_9238c382-e701-4608-af2d-d41776fda0c1/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9238c382-e701-4608-af2d-d41776fda0c1/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9238c382-e701-4608-af2d-d41776fda0c1/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_9238c382-e701-4608-af2d-d41776fda0c1/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 a233f90faab2ceb8ddfb042463870c03c0794d3cd45b2ba20de731314559cb95 --- 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 15:11:51,389 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 15:11:51,391 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 15:11:51,409 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 15:11:51,409 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 15:11:51,410 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 15:11:51,411 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 15:11:51,412 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 15:11:51,414 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 15:11:51,415 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 15:11:51,416 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 15:11:51,417 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 15:11:51,417 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 15:11:51,418 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 15:11:51,419 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 15:11:51,420 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 15:11:51,421 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 15:11:51,421 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 15:11:51,423 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 15:11:51,424 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 15:11:51,426 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 15:11:51,427 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 15:11:51,428 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 15:11:51,429 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 15:11:51,432 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 15:11:51,432 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 15:11:51,432 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 15:11:51,433 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 15:11:51,434 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 15:11:51,434 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 15:11:51,435 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 15:11:51,435 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 15:11:51,436 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 15:11:51,437 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 15:11:51,437 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 15:11:51,438 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 15:11:51,438 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 15:11:51,438 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 15:11:51,439 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 15:11:51,439 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 15:11:51,440 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 15:11:51,441 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9238c382-e701-4608-af2d-d41776fda0c1/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 15:11:51,469 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 15:11:51,469 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 15:11:51,469 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 15:11:51,469 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 15:11:51,470 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 15:11:51,470 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 15:11:51,471 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 15:11:51,471 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 15:11:51,471 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 15:11:51,472 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 15:11:51,472 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 15:11:51,472 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 15:11:51,472 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 15:11:51,472 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 15:11:51,473 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 15:11:51,473 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 15:11:51,473 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 15:11:51,473 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 15:11:51,473 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 15:11:51,473 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 15:11:51,474 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 15:11:51,474 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 15:11:51,474 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 15:11:51,474 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 15:11:51,474 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:11:51,475 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 15:11:51,475 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 15:11:51,475 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 15:11:51,475 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 15:11:51,475 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 15:11:51,475 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 15:11:51,476 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 15:11:51,476 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 15:11:51,476 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 15:11:51,476 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 15:11:51,476 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_9238c382-e701-4608-af2d-d41776fda0c1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9238c382-e701-4608-af2d-d41776fda0c1/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a233f90faab2ceb8ddfb042463870c03c0794d3cd45b2ba20de731314559cb95 [2022-12-13 15:11:51,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 15:11:51,693 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 15:11:51,696 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 15:11:51,697 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 15:11:51,697 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 15:11:51,698 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9238c382-e701-4608-af2d-d41776fda0c1/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i [2022-12-13 15:11:54,133 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 15:11:54,347 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 15:11:54,347 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9238c382-e701-4608-af2d-d41776fda0c1/sv-benchmarks/c/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i [2022-12-13 15:11:54,357 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9238c382-e701-4608-af2d-d41776fda0c1/bin/uautomizer-uyxdKDjOR8/data/5b3ba56b8/50e37f7241c34152970c0bb6b4694daf/FLAG5cd400cb3 [2022-12-13 15:11:54,713 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9238c382-e701-4608-af2d-d41776fda0c1/bin/uautomizer-uyxdKDjOR8/data/5b3ba56b8/50e37f7241c34152970c0bb6b4694daf [2022-12-13 15:11:54,715 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 15:11:54,716 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 15:11:54,717 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 15:11:54,717 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 15:11:54,721 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 15:11:54,721 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:11:54" (1/1) ... [2022-12-13 15:11:54,722 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bb449f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:11:54, skipping insertion in model container [2022-12-13 15:11:54,722 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:11:54" (1/1) ... [2022-12-13 15:11:54,729 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 15:11:54,753 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 15:11:54,857 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_9238c382-e701-4608-af2d-d41776fda0c1/sv-benchmarks/c/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i[1105,1118] [2022-12-13 15:11:54,939 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:11:54,949 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 15:11:54,957 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_9238c382-e701-4608-af2d-d41776fda0c1/sv-benchmarks/c/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i[1105,1118] [2022-12-13 15:11:54,980 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:11:55,001 INFO L208 MainTranslator]: Completed translation [2022-12-13 15:11:55,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:11:55 WrapperNode [2022-12-13 15:11:55,002 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 15:11:55,003 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 15:11:55,003 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 15:11:55,003 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 15:11:55,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:11:55" (1/1) ... [2022-12-13 15:11:55,018 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:11:55" (1/1) ... [2022-12-13 15:11:55,031 INFO L138 Inliner]: procedures = 162, calls = 40, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2022-12-13 15:11:55,032 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 15:11:55,032 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 15:11:55,032 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 15:11:55,032 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 15:11:55,039 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:11:55" (1/1) ... [2022-12-13 15:11:55,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:11:55" (1/1) ... [2022-12-13 15:11:55,041 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:11:55" (1/1) ... [2022-12-13 15:11:55,041 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:11:55" (1/1) ... [2022-12-13 15:11:55,044 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:11:55" (1/1) ... [2022-12-13 15:11:55,045 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:11:55" (1/1) ... [2022-12-13 15:11:55,046 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:11:55" (1/1) ... [2022-12-13 15:11:55,047 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:11:55" (1/1) ... [2022-12-13 15:11:55,048 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 15:11:55,049 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 15:11:55,049 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 15:11:55,049 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 15:11:55,049 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:11:55" (1/1) ... [2022-12-13 15:11:55,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:11:55,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9238c382-e701-4608-af2d-d41776fda0c1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:11:55,071 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9238c382-e701-4608-af2d-d41776fda0c1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 15:11:55,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9238c382-e701-4608-af2d-d41776fda0c1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 15:11:55,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 15:11:55,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 15:11:55,105 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 15:11:55,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 15:11:55,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 15:11:55,105 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 15:11:55,105 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 15:11:55,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 15:11:55,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 15:11:55,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 15:11:55,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 15:11:55,107 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 15:11:55,201 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 15:11:55,203 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 15:11:55,371 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 15:11:55,378 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 15:11:55,378 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 15:11:55,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:11:55 BoogieIcfgContainer [2022-12-13 15:11:55,380 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 15:11:55,383 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 15:11:55,383 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 15:11:55,386 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 15:11:55,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 03:11:54" (1/3) ... [2022-12-13 15:11:55,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22013908 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:11:55, skipping insertion in model container [2022-12-13 15:11:55,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:11:55" (2/3) ... [2022-12-13 15:11:55,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22013908 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:11:55, skipping insertion in model container [2022-12-13 15:11:55,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:11:55" (3/3) ... [2022-12-13 15:11:55,389 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i [2022-12-13 15:11:55,397 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 15:11:55,408 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 15:11:55,408 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 15:11:55,408 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 15:11:55,447 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-13 15:11:55,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 102 places, 100 transitions, 208 flow [2022-12-13 15:11:55,516 INFO L130 PetriNetUnfolder]: 2/99 cut-off events. [2022-12-13 15:11:55,517 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 15:11:55,520 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 99 events. 2/99 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 56 event pairs, 0 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2022-12-13 15:11:55,520 INFO L82 GeneralOperation]: Start removeDead. Operand has 102 places, 100 transitions, 208 flow [2022-12-13 15:11:55,523 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 87 places, 84 transitions, 171 flow [2022-12-13 15:11:55,525 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 15:11:55,532 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 84 transitions, 171 flow [2022-12-13 15:11:55,534 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 84 transitions, 171 flow [2022-12-13 15:11:55,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 87 places, 84 transitions, 171 flow [2022-12-13 15:11:55,549 INFO L130 PetriNetUnfolder]: 1/84 cut-off events. [2022-12-13 15:11:55,549 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 15:11:55,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 84 events. 1/84 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 49 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2022-12-13 15:11:55,550 INFO L119 LiptonReduction]: Number of co-enabled transitions 952 [2022-12-13 15:11:57,833 INFO L134 LiptonReduction]: Checked pairs total: 3168 [2022-12-13 15:11:57,833 INFO L136 LiptonReduction]: Total number of compositions: 68 [2022-12-13 15:11:57,845 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 15:11:57,850 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;@16b48a66, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 15:11:57,851 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-13 15:11:57,854 INFO L130 PetriNetUnfolder]: 1/10 cut-off events. [2022-12-13 15:11:57,854 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 15:11:57,855 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:11:57,855 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 15:11:57,856 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 15:11:57,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:11:57,862 INFO L85 PathProgramCache]: Analyzing trace with hash 309983954, now seen corresponding path program 1 times [2022-12-13 15:11:57,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:11:57,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57569594] [2022-12-13 15:11:57,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:11:57,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:11:57,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:11:58,111 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 15:11:58,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:11:58,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57569594] [2022-12-13 15:11:58,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57569594] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:11:58,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:11:58,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 15:11:58,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296506126] [2022-12-13 15:11:58,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:11:58,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:11:58,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:11:58,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:11:58,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:11:58,147 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 168 [2022-12-13 15:11:58,148 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 23 transitions, 49 flow. Second operand has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 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 15:11:58,148 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:11:58,148 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 168 [2022-12-13 15:11:58,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:11:58,197 INFO L130 PetriNetUnfolder]: 38/139 cut-off events. [2022-12-13 15:11:58,197 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 15:11:58,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 241 conditions, 139 events. 38/139 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 534 event pairs, 30 based on Foata normal form. 14/141 useless extension candidates. Maximal degree in co-relation 232. Up to 83 conditions per place. [2022-12-13 15:11:58,199 INFO L137 encePairwiseOnDemand]: 161/168 looper letters, 16 selfloop transitions, 3 changer transitions 4/29 dead transitions. [2022-12-13 15:11:58,199 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 29 transitions, 107 flow [2022-12-13 15:11:58,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:11:58,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 15:11:58,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 300 transitions. [2022-12-13 15:11:58,210 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5952380952380952 [2022-12-13 15:11:58,210 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 300 transitions. [2022-12-13 15:11:58,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 300 transitions. [2022-12-13 15:11:58,212 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:11:58,214 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 300 transitions. [2022-12-13 15:11:58,215 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 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 15:11:58,219 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 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 15:11:58,219 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 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 15:11:58,221 INFO L175 Difference]: Start difference. First operand has 26 places, 23 transitions, 49 flow. Second operand 3 states and 300 transitions. [2022-12-13 15:11:58,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 29 transitions, 107 flow [2022-12-13 15:11:58,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 29 transitions, 106 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 15:11:58,224 INFO L231 Difference]: Finished difference. Result has 29 places, 21 transitions, 62 flow [2022-12-13 15:11:58,226 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=62, PETRI_PLACES=29, PETRI_TRANSITIONS=21} [2022-12-13 15:11:58,228 INFO L288 CegarLoopForPetriNet]: 26 programPoint places, 3 predicate places. [2022-12-13 15:11:58,228 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 21 transitions, 62 flow [2022-12-13 15:11:58,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 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 15:11:58,229 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:11:58,229 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:11:58,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 15:11:58,229 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 15:11:58,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:11:58,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1767434840, now seen corresponding path program 1 times [2022-12-13 15:11:58,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:11:58,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952168645] [2022-12-13 15:11:58,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:11:58,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:11:58,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:11:58,308 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 15:11:58,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:11:58,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952168645] [2022-12-13 15:11:58,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952168645] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:11:58,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:11:58,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 15:11:58,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113521887] [2022-12-13 15:11:58,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:11:58,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:11:58,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:11:58,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:11:58,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:11:58,350 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 168 [2022-12-13 15:11:58,351 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 21 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 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 15:11:58,351 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:11:58,351 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 168 [2022-12-13 15:11:58,351 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:11:58,409 INFO L130 PetriNetUnfolder]: 50/149 cut-off events. [2022-12-13 15:11:58,409 INFO L131 PetriNetUnfolder]: For 36/36 co-relation queries the response was YES. [2022-12-13 15:11:58,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 338 conditions, 149 events. 50/149 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 539 event pairs, 23 based on Foata normal form. 5/153 useless extension candidates. Maximal degree in co-relation 326. Up to 99 conditions per place. [2022-12-13 15:11:58,410 INFO L137 encePairwiseOnDemand]: 160/168 looper letters, 23 selfloop transitions, 6 changer transitions 4/35 dead transitions. [2022-12-13 15:11:58,410 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 35 transitions, 168 flow [2022-12-13 15:11:58,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:11:58,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 15:11:58,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 284 transitions. [2022-12-13 15:11:58,412 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5634920634920635 [2022-12-13 15:11:58,412 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 284 transitions. [2022-12-13 15:11:58,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 284 transitions. [2022-12-13 15:11:58,412 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:11:58,412 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 284 transitions. [2022-12-13 15:11:58,413 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 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 15:11:58,414 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 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 15:11:58,414 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 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 15:11:58,414 INFO L175 Difference]: Start difference. First operand has 29 places, 21 transitions, 62 flow. Second operand 3 states and 284 transitions. [2022-12-13 15:11:58,414 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 35 transitions, 168 flow [2022-12-13 15:11:58,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 35 transitions, 158 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 15:11:58,415 INFO L231 Difference]: Finished difference. Result has 29 places, 24 transitions, 90 flow [2022-12-13 15:11:58,416 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=29, PETRI_TRANSITIONS=24} [2022-12-13 15:11:58,416 INFO L288 CegarLoopForPetriNet]: 26 programPoint places, 3 predicate places. [2022-12-13 15:11:58,416 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 24 transitions, 90 flow [2022-12-13 15:11:58,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 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 15:11:58,416 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:11:58,416 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:11:58,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 15:11:58,417 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 15:11:58,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:11:58,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1041566956, now seen corresponding path program 1 times [2022-12-13 15:11:58,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:11:58,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290902144] [2022-12-13 15:11:58,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:11:58,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:11:58,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:11:58,525 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 15:11:58,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:11:58,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290902144] [2022-12-13 15:11:58,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290902144] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:11:58,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:11:58,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 15:11:58,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518308402] [2022-12-13 15:11:58,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:11:58,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 15:11:58,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:11:58,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 15:11:58,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 15:11:58,581 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 168 [2022-12-13 15:11:58,581 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 24 transitions, 90 flow. Second operand has 4 states, 4 states have (on average 84.5) internal successors, (338), 4 states have internal predecessors, (338), 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 15:11:58,581 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:11:58,581 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 168 [2022-12-13 15:11:58,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:11:58,621 INFO L130 PetriNetUnfolder]: 15/81 cut-off events. [2022-12-13 15:11:58,622 INFO L131 PetriNetUnfolder]: For 19/21 co-relation queries the response was YES. [2022-12-13 15:11:58,622 INFO L83 FinitePrefix]: Finished finitePrefix Result has 224 conditions, 81 events. 15/81 cut-off events. For 19/21 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 236 event pairs, 5 based on Foata normal form. 20/100 useless extension candidates. Maximal degree in co-relation 212. Up to 49 conditions per place. [2022-12-13 15:11:58,622 INFO L137 encePairwiseOnDemand]: 159/168 looper letters, 11 selfloop transitions, 8 changer transitions 10/30 dead transitions. [2022-12-13 15:11:58,622 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 30 transitions, 170 flow [2022-12-13 15:11:58,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 15:11:58,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 15:11:58,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 358 transitions. [2022-12-13 15:11:58,624 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5327380952380952 [2022-12-13 15:11:58,624 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 358 transitions. [2022-12-13 15:11:58,624 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 358 transitions. [2022-12-13 15:11:58,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:11:58,624 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 358 transitions. [2022-12-13 15:11:58,625 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 89.5) internal successors, (358), 4 states have internal predecessors, (358), 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 15:11:58,626 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 168.0) internal successors, (840), 5 states have internal predecessors, (840), 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 15:11:58,626 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 168.0) internal successors, (840), 5 states have internal predecessors, (840), 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 15:11:58,627 INFO L175 Difference]: Start difference. First operand has 29 places, 24 transitions, 90 flow. Second operand 4 states and 358 transitions. [2022-12-13 15:11:58,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 30 transitions, 170 flow [2022-12-13 15:11:58,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 30 transitions, 160 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-12-13 15:11:58,628 INFO L231 Difference]: Finished difference. Result has 31 places, 18 transitions, 78 flow [2022-12-13 15:11:58,628 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=78, PETRI_PLACES=31, PETRI_TRANSITIONS=18} [2022-12-13 15:11:58,628 INFO L288 CegarLoopForPetriNet]: 26 programPoint places, 5 predicate places. [2022-12-13 15:11:58,628 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 18 transitions, 78 flow [2022-12-13 15:11:58,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.5) internal successors, (338), 4 states have internal predecessors, (338), 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 15:11:58,629 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:11:58,629 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:11:58,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 15:11:58,629 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 15:11:58,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:11:58,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1452974796, now seen corresponding path program 2 times [2022-12-13 15:11:58,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:11:58,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623334765] [2022-12-13 15:11:58,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:11:58,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:11:58,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:11:58,726 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 15:11:58,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:11:58,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623334765] [2022-12-13 15:11:58,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623334765] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:11:58,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:11:58,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 15:11:58,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989050838] [2022-12-13 15:11:58,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:11:58,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 15:11:58,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:11:58,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 15:11:58,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 15:11:58,791 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 168 [2022-12-13 15:11:58,792 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 18 transitions, 78 flow. Second operand has 5 states, 5 states have (on average 84.0) internal successors, (420), 5 states have internal predecessors, (420), 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 15:11:58,792 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:11:58,792 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 168 [2022-12-13 15:11:58,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:11:58,818 INFO L130 PetriNetUnfolder]: 9/45 cut-off events. [2022-12-13 15:11:58,818 INFO L131 PetriNetUnfolder]: For 12/13 co-relation queries the response was YES. [2022-12-13 15:11:58,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 45 events. 9/45 cut-off events. For 12/13 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 96 event pairs, 4 based on Foata normal form. 1/46 useless extension candidates. Maximal degree in co-relation 122. Up to 27 conditions per place. [2022-12-13 15:11:58,819 INFO L137 encePairwiseOnDemand]: 164/168 looper letters, 13 selfloop transitions, 4 changer transitions 2/20 dead transitions. [2022-12-13 15:11:58,819 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 20 transitions, 122 flow [2022-12-13 15:11:58,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 15:11:58,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 15:11:58,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 347 transitions. [2022-12-13 15:11:58,821 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5163690476190477 [2022-12-13 15:11:58,821 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 347 transitions. [2022-12-13 15:11:58,821 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 347 transitions. [2022-12-13 15:11:58,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:11:58,821 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 347 transitions. [2022-12-13 15:11:58,823 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 86.75) internal successors, (347), 4 states have internal predecessors, (347), 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 15:11:58,825 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 168.0) internal successors, (840), 5 states have internal predecessors, (840), 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 15:11:58,825 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 168.0) internal successors, (840), 5 states have internal predecessors, (840), 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 15:11:58,825 INFO L175 Difference]: Start difference. First operand has 31 places, 18 transitions, 78 flow. Second operand 4 states and 347 transitions. [2022-12-13 15:11:58,825 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 20 transitions, 122 flow [2022-12-13 15:11:58,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 20 transitions, 108 flow, removed 1 selfloop flow, removed 3 redundant places. [2022-12-13 15:11:58,827 INFO L231 Difference]: Finished difference. Result has 25 places, 17 transitions, 70 flow [2022-12-13 15:11:58,827 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=70, PETRI_PLACES=25, PETRI_TRANSITIONS=17} [2022-12-13 15:11:58,828 INFO L288 CegarLoopForPetriNet]: 26 programPoint places, -1 predicate places. [2022-12-13 15:11:58,828 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 17 transitions, 70 flow [2022-12-13 15:11:58,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 84.0) internal successors, (420), 5 states have internal predecessors, (420), 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 15:11:58,828 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:11:58,829 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:11:58,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 15:11:58,829 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 15:11:58,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:11:58,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1987515275, now seen corresponding path program 1 times [2022-12-13 15:11:58,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:11:58,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736373989] [2022-12-13 15:11:58,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:11:58,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:11:58,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:11:59,003 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 15:11:59,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:11:59,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736373989] [2022-12-13 15:11:59,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736373989] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:11:59,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:11:59,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 15:11:59,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434271073] [2022-12-13 15:11:59,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:11:59,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 15:11:59,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:11:59,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 15:11:59,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 15:11:59,076 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 168 [2022-12-13 15:11:59,076 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 17 transitions, 70 flow. Second operand has 5 states, 5 states have (on average 84.0) internal successors, (420), 5 states have internal predecessors, (420), 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 15:11:59,077 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:11:59,077 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 168 [2022-12-13 15:11:59,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:11:59,105 INFO L130 PetriNetUnfolder]: 7/36 cut-off events. [2022-12-13 15:11:59,105 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-12-13 15:11:59,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112 conditions, 36 events. 7/36 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 69 event pairs, 0 based on Foata normal form. 10/46 useless extension candidates. Maximal degree in co-relation 99. Up to 29 conditions per place. [2022-12-13 15:11:59,106 INFO L137 encePairwiseOnDemand]: 165/168 looper letters, 0 selfloop transitions, 0 changer transitions 21/21 dead transitions. [2022-12-13 15:11:59,106 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 21 transitions, 130 flow [2022-12-13 15:11:59,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 15:11:59,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 15:11:59,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 345 transitions. [2022-12-13 15:11:59,107 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5133928571428571 [2022-12-13 15:11:59,107 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 345 transitions. [2022-12-13 15:11:59,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 345 transitions. [2022-12-13 15:11:59,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:11:59,108 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 345 transitions. [2022-12-13 15:11:59,108 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 86.25) internal successors, (345), 4 states have internal predecessors, (345), 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 15:11:59,109 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 168.0) internal successors, (840), 5 states have internal predecessors, (840), 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 15:11:59,109 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 168.0) internal successors, (840), 5 states have internal predecessors, (840), 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 15:11:59,110 INFO L175 Difference]: Start difference. First operand has 25 places, 17 transitions, 70 flow. Second operand 4 states and 345 transitions. [2022-12-13 15:11:59,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 21 transitions, 130 flow [2022-12-13 15:11:59,110 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 21 transitions, 122 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 15:11:59,111 INFO L231 Difference]: Finished difference. Result has 24 places, 0 transitions, 0 flow [2022-12-13 15:11:59,111 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=21, 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=24, PETRI_TRANSITIONS=0} [2022-12-13 15:11:59,112 INFO L288 CegarLoopForPetriNet]: 26 programPoint places, -2 predicate places. [2022-12-13 15:11:59,112 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 0 transitions, 0 flow [2022-12-13 15:11:59,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 84.0) internal successors, (420), 5 states have internal predecessors, (420), 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 15:11:59,114 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-13 15:11:59,115 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2022-12-13 15:11:59,115 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-12-13 15:11:59,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 15:11:59,115 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2022-12-13 15:11:59,117 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 15:11:59,117 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 15:11:59,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 03:11:59 BasicIcfg [2022-12-13 15:11:59,121 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 15:11:59,121 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 15:11:59,121 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 15:11:59,121 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 15:11:59,122 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:11:55" (3/4) ... [2022-12-13 15:11:59,124 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 15:11:59,128 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-12-13 15:11:59,132 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-12-13 15:11:59,132 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 15:11:59,132 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 15:11:59,132 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 15:11:59,161 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9238c382-e701-4608-af2d-d41776fda0c1/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 15:11:59,161 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 15:11:59,162 INFO L158 Benchmark]: Toolchain (without parser) took 4445.47ms. Allocated memory was 123.7MB in the beginning and 192.9MB in the end (delta: 69.2MB). Free memory was 88.8MB in the beginning and 85.3MB in the end (delta: 3.5MB). Peak memory consumption was 73.1MB. Max. memory is 16.1GB. [2022-12-13 15:11:59,162 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 123.7MB. Free memory is still 93.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:11:59,163 INFO L158 Benchmark]: CACSL2BoogieTranslator took 284.80ms. Allocated memory is still 123.7MB. Free memory was 88.4MB in the beginning and 69.2MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 15:11:59,163 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.14ms. Allocated memory is still 123.7MB. Free memory was 69.2MB in the beginning and 67.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 15:11:59,163 INFO L158 Benchmark]: Boogie Preprocessor took 16.05ms. Allocated memory is still 123.7MB. Free memory was 67.5MB in the beginning and 65.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 15:11:59,164 INFO L158 Benchmark]: RCFGBuilder took 331.84ms. Allocated memory is still 123.7MB. Free memory was 65.8MB in the beginning and 51.6MB in the end (delta: 14.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 15:11:59,164 INFO L158 Benchmark]: TraceAbstraction took 3737.57ms. Allocated memory was 123.7MB in the beginning and 192.9MB in the end (delta: 69.2MB). Free memory was 50.7MB in the beginning and 88.5MB in the end (delta: -37.8MB). Peak memory consumption was 33.3MB. Max. memory is 16.1GB. [2022-12-13 15:11:59,165 INFO L158 Benchmark]: Witness Printer took 40.42ms. Allocated memory is still 192.9MB. Free memory was 88.5MB in the beginning and 85.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 15:11:59,167 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 123.7MB. Free memory is still 93.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 284.80ms. Allocated memory is still 123.7MB. Free memory was 88.4MB in the beginning and 69.2MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.14ms. Allocated memory is still 123.7MB. Free memory was 69.2MB in the beginning and 67.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.05ms. Allocated memory is still 123.7MB. Free memory was 67.5MB in the beginning and 65.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 331.84ms. Allocated memory is still 123.7MB. Free memory was 65.8MB in the beginning and 51.6MB in the end (delta: 14.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3737.57ms. Allocated memory was 123.7MB in the beginning and 192.9MB in the end (delta: 69.2MB). Free memory was 50.7MB in the beginning and 88.5MB in the end (delta: -37.8MB). Peak memory consumption was 33.3MB. Max. memory is 16.1GB. * Witness Printer took 40.42ms. Allocated memory is still 192.9MB. Free memory was 88.5MB in the beginning and 85.3MB 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: 2.3s, 87 PlacesBefore, 26 PlacesAfterwards, 84 TransitionsBefore, 23 TransitionsAfterwards, 952 CoEnabledTransitionPairs, 6 FixpointIterations, 37 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 68 TotalNumberOfCompositions, 3168 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 827, independent: 612, independent conditional: 0, independent unconditional: 612, dependent: 215, dependent conditional: 0, dependent unconditional: 215, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 451, independent: 422, independent conditional: 0, independent unconditional: 422, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 827, independent: 190, independent conditional: 0, independent unconditional: 190, dependent: 186, dependent conditional: 0, dependent unconditional: 186, unknown: 451, unknown conditional: 0, unknown unconditional: 451] , Statistics on independence cache: Total cache size (in pairs): 29, Positive cache size: 10, Positive conditional cache size: 0, Positive unconditional cache size: 10, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19, 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 - 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, 118 locations, 3 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: 3.6s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 364 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 184 mSDsluCounter, 40 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 96 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 521 IncrementalHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 96 mSolverCounterUnsat, 34 mSDtfsCounter, 521 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred in iteration=2, InterpolantAutomatonStates: 18, 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, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 245 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 15:11:59,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9238c382-e701-4608-af2d-d41776fda0c1/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