./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe029_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14889fd1-e487-4c9d-bab4-a41bc1df2425/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14889fd1-e487-4c9d-bab4-a41bc1df2425/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14889fd1-e487-4c9d-bab4-a41bc1df2425/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14889fd1-e487-4c9d-bab4-a41bc1df2425/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe029_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14889fd1-e487-4c9d-bab4-a41bc1df2425/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14889fd1-e487-4c9d-bab4-a41bc1df2425/bin/uautomizer-vX5HgA9Q3a --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 ef851e22a0a98929f1b90876fcac5ec793e10efa4691f239ca948c8dc39b94fd --- 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-b5237d8 [2022-11-21 17:12:18,229 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 17:12:18,233 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 17:12:18,281 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 17:12:18,282 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 17:12:18,286 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 17:12:18,289 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 17:12:18,293 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 17:12:18,295 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 17:12:18,300 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 17:12:18,302 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 17:12:18,305 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 17:12:18,306 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 17:12:18,308 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 17:12:18,310 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 17:12:18,314 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 17:12:18,316 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 17:12:18,317 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 17:12:18,319 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 17:12:18,326 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 17:12:18,328 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 17:12:18,330 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 17:12:18,332 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 17:12:18,333 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 17:12:18,344 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 17:12:18,345 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 17:12:18,345 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 17:12:18,348 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 17:12:18,349 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 17:12:18,352 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 17:12:18,352 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 17:12:18,353 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 17:12:18,355 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 17:12:18,357 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 17:12:18,358 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 17:12:18,359 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 17:12:18,360 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 17:12:18,361 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 17:12:18,361 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 17:12:18,362 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 17:12:18,363 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 17:12:18,365 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14889fd1-e487-4c9d-bab4-a41bc1df2425/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-21 17:12:18,419 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 17:12:18,420 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 17:12:18,421 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 17:12:18,421 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 17:12:18,422 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 17:12:18,423 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 17:12:18,423 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 17:12:18,424 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 17:12:18,424 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 17:12:18,424 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 17:12:18,426 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 17:12:18,426 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 17:12:18,426 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 17:12:18,427 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 17:12:18,427 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 17:12:18,427 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 17:12:18,427 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 17:12:18,428 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 17:12:18,428 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 17:12:18,428 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 17:12:18,429 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 17:12:18,429 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 17:12:18,429 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 17:12:18,430 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 17:12:18,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:12:18,430 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 17:12:18,430 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 17:12:18,431 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 17:12:18,432 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 17:12:18,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 17:12:18,432 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 17:12:18,432 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 17:12:18,433 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 17:12:18,433 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14889fd1-e487-4c9d-bab4-a41bc1df2425/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14889fd1-e487-4c9d-bab4-a41bc1df2425/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef851e22a0a98929f1b90876fcac5ec793e10efa4691f239ca948c8dc39b94fd [2022-11-21 17:12:18,816 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 17:12:18,853 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 17:12:18,856 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 17:12:18,858 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 17:12:18,858 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 17:12:18,860 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14889fd1-e487-4c9d-bab4-a41bc1df2425/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/pthread-wmm/safe029_tso.i [2022-11-21 17:12:22,125 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 17:12:22,420 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 17:12:22,421 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14889fd1-e487-4c9d-bab4-a41bc1df2425/sv-benchmarks/c/pthread-wmm/safe029_tso.i [2022-11-21 17:12:22,434 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14889fd1-e487-4c9d-bab4-a41bc1df2425/bin/uautomizer-vX5HgA9Q3a/data/861c6912e/57f42b7a334c46e0a620dc6ba202fddb/FLAG7432b5ef4 [2022-11-21 17:12:22,449 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14889fd1-e487-4c9d-bab4-a41bc1df2425/bin/uautomizer-vX5HgA9Q3a/data/861c6912e/57f42b7a334c46e0a620dc6ba202fddb [2022-11-21 17:12:22,452 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 17:12:22,454 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 17:12:22,455 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 17:12:22,456 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 17:12:22,462 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 17:12:22,463 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:12:22" (1/1) ... [2022-11-21 17:12:22,464 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74015a68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:12:22, skipping insertion in model container [2022-11-21 17:12:22,464 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:12:22" (1/1) ... [2022-11-21 17:12:22,473 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 17:12:22,523 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:12:22,747 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_14889fd1-e487-4c9d-bab4-a41bc1df2425/sv-benchmarks/c/pthread-wmm/safe029_tso.i[945,958] [2022-11-21 17:12:23,043 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:12:23,056 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 17:12:23,078 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_14889fd1-e487-4c9d-bab4-a41bc1df2425/sv-benchmarks/c/pthread-wmm/safe029_tso.i[945,958] [2022-11-21 17:12:23,142 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:12:23,199 INFO L208 MainTranslator]: Completed translation [2022-11-21 17:12:23,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:12:23 WrapperNode [2022-11-21 17:12:23,200 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 17:12:23,202 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 17:12:23,202 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 17:12:23,202 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 17:12:23,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:12:23" (1/1) ... [2022-11-21 17:12:23,257 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:12:23" (1/1) ... [2022-11-21 17:12:23,284 INFO L138 Inliner]: procedures = 175, calls = 40, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2022-11-21 17:12:23,285 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 17:12:23,286 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 17:12:23,286 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 17:12:23,286 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 17:12:23,297 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:12:23" (1/1) ... [2022-11-21 17:12:23,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:12:23" (1/1) ... [2022-11-21 17:12:23,304 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:12:23" (1/1) ... [2022-11-21 17:12:23,305 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:12:23" (1/1) ... [2022-11-21 17:12:23,320 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:12:23" (1/1) ... [2022-11-21 17:12:23,328 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:12:23" (1/1) ... [2022-11-21 17:12:23,330 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:12:23" (1/1) ... [2022-11-21 17:12:23,335 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:12:23" (1/1) ... [2022-11-21 17:12:23,341 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 17:12:23,342 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 17:12:23,343 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 17:12:23,343 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 17:12:23,344 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:12:23" (1/1) ... [2022-11-21 17:12:23,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:12:23,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14889fd1-e487-4c9d-bab4-a41bc1df2425/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:12:23,384 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14889fd1-e487-4c9d-bab4-a41bc1df2425/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 17:12:23,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14889fd1-e487-4c9d-bab4-a41bc1df2425/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 17:12:23,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 17:12:23,436 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-21 17:12:23,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 17:12:23,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 17:12:23,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 17:12:23,437 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-21 17:12:23,437 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-21 17:12:23,437 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-21 17:12:23,437 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-21 17:12:23,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 17:12:23,437 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-21 17:12:23,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 17:12:23,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 17:12:23,439 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 17:12:23,708 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 17:12:23,710 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 17:12:23,861 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 17:12:23,869 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 17:12:23,869 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 17:12:23,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:12:23 BoogieIcfgContainer [2022-11-21 17:12:23,873 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 17:12:23,876 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 17:12:23,876 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 17:12:23,880 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 17:12:23,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 05:12:22" (1/3) ... [2022-11-21 17:12:23,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fede7a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:12:23, skipping insertion in model container [2022-11-21 17:12:23,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:12:23" (2/3) ... [2022-11-21 17:12:23,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fede7a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:12:23, skipping insertion in model container [2022-11-21 17:12:23,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:12:23" (3/3) ... [2022-11-21 17:12:23,885 INFO L112 eAbstractionObserver]: Analyzing ICFG safe029_tso.i [2022-11-21 17:12:23,896 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 17:12:23,909 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 17:12:23,910 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 17:12:23,910 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 17:12:23,961 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-21 17:12:24,016 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 78 places, 73 transitions, 156 flow [2022-11-21 17:12:24,094 INFO L130 PetriNetUnfolder]: 2/71 cut-off events. [2022-11-21 17:12:24,095 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 17:12:24,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 71 events. 2/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 35 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 51. Up to 2 conditions per place. [2022-11-21 17:12:24,100 INFO L82 GeneralOperation]: Start removeDead. Operand has 78 places, 73 transitions, 156 flow [2022-11-21 17:12:24,111 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 59 transitions, 124 flow [2022-11-21 17:12:24,132 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 17:12:24,141 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;@17593c0a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 17:12:24,142 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-21 17:12:24,182 INFO L130 PetriNetUnfolder]: 1/58 cut-off events. [2022-11-21 17:12:24,182 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 17:12:24,183 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:12:24,184 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:12:24,185 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-21 17:12:24,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:12:24,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1914735552, now seen corresponding path program 1 times [2022-11-21 17:12:24,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:12:24,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149756571] [2022-11-21 17:12:24,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:12:24,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:12:24,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:12:25,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:12:25,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:12:25,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149756571] [2022-11-21 17:12:25,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149756571] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:12:25,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:12:25,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-21 17:12:25,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300448063] [2022-11-21 17:12:25,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:12:25,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-21 17:12:25,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:12:25,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-21 17:12:25,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-21 17:12:25,210 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 73 [2022-11-21 17:12:25,214 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 59 transitions, 124 flow. Second operand has 8 states, 8 states have (on average 52.5) internal successors, (420), 8 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) [2022-11-21 17:12:25,214 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:12:25,214 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 73 [2022-11-21 17:12:25,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:12:25,894 INFO L130 PetriNetUnfolder]: 263/618 cut-off events. [2022-11-21 17:12:25,894 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-21 17:12:25,897 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1103 conditions, 618 events. 263/618 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 3188 event pairs, 7 based on Foata normal form. 32/634 useless extension candidates. Maximal degree in co-relation 1070. Up to 112 conditions per place. [2022-11-21 17:12:25,901 INFO L137 encePairwiseOnDemand]: 60/73 looper letters, 37 selfloop transitions, 16 changer transitions 84/177 dead transitions. [2022-11-21 17:12:25,901 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 177 transitions, 640 flow [2022-11-21 17:12:25,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-21 17:12:25,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-21 17:12:25,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1218 transitions. [2022-11-21 17:12:25,920 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7945205479452054 [2022-11-21 17:12:25,921 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1218 transitions. [2022-11-21 17:12:25,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1218 transitions. [2022-11-21 17:12:25,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:12:25,927 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1218 transitions. [2022-11-21 17:12:25,932 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 58.0) internal successors, (1218), 21 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:25,942 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 73.0) internal successors, (1606), 22 states have internal predecessors, (1606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:25,943 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 73.0) internal successors, (1606), 22 states have internal predecessors, (1606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:25,945 INFO L175 Difference]: Start difference. First operand has 65 places, 59 transitions, 124 flow. Second operand 21 states and 1218 transitions. [2022-11-21 17:12:25,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 177 transitions, 640 flow [2022-11-21 17:12:25,950 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 177 transitions, 636 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 17:12:25,953 INFO L231 Difference]: Finished difference. Result has 103 places, 72 transitions, 288 flow [2022-11-21 17:12:25,956 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=288, PETRI_PLACES=103, PETRI_TRANSITIONS=72} [2022-11-21 17:12:25,963 INFO L288 CegarLoopForPetriNet]: 65 programPoint places, 38 predicate places. [2022-11-21 17:12:25,964 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 72 transitions, 288 flow [2022-11-21 17:12:25,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 52.5) internal successors, (420), 8 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) [2022-11-21 17:12:25,965 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:12:25,966 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:12:25,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 17:12:25,967 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-21 17:12:25,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:12:25,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1621031519, now seen corresponding path program 1 times [2022-11-21 17:12:25,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:12:25,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394852819] [2022-11-21 17:12:25,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:12:25,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:12:26,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:12:26,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:12:26,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:12:26,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394852819] [2022-11-21 17:12:26,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394852819] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:12:26,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:12:26,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-21 17:12:26,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812130124] [2022-11-21 17:12:26,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:12:26,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-21 17:12:26,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:12:26,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-21 17:12:26,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-21 17:12:26,447 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 73 [2022-11-21 17:12:26,449 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 72 transitions, 288 flow. Second operand has 9 states, 9 states have (on average 52.44444444444444) internal successors, (472), 9 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:26,450 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:12:26,451 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 73 [2022-11-21 17:12:26,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:12:27,300 INFO L130 PetriNetUnfolder]: 225/647 cut-off events. [2022-11-21 17:12:27,301 INFO L131 PetriNetUnfolder]: For 2681/2881 co-relation queries the response was YES. [2022-11-21 17:12:27,308 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2248 conditions, 647 events. 225/647 cut-off events. For 2681/2881 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3784 event pairs, 5 based on Foata normal form. 22/665 useless extension candidates. Maximal degree in co-relation 2193. Up to 148 conditions per place. [2022-11-21 17:12:27,311 INFO L137 encePairwiseOnDemand]: 60/73 looper letters, 47 selfloop transitions, 22 changer transitions 82/191 dead transitions. [2022-11-21 17:12:27,312 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 191 transitions, 1484 flow [2022-11-21 17:12:27,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-21 17:12:27,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2022-11-21 17:12:27,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 1636 transitions. [2022-11-21 17:12:27,317 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7727916863486065 [2022-11-21 17:12:27,318 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 1636 transitions. [2022-11-21 17:12:27,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 1636 transitions. [2022-11-21 17:12:27,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:12:27,319 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 1636 transitions. [2022-11-21 17:12:27,324 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 56.41379310344828) internal successors, (1636), 29 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:27,329 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 73.0) internal successors, (2190), 30 states have internal predecessors, (2190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:27,330 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 73.0) internal successors, (2190), 30 states have internal predecessors, (2190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:27,330 INFO L175 Difference]: Start difference. First operand has 103 places, 72 transitions, 288 flow. Second operand 29 states and 1636 transitions. [2022-11-21 17:12:27,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 191 transitions, 1484 flow [2022-11-21 17:12:27,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 191 transitions, 1212 flow, removed 136 selfloop flow, removed 9 redundant places. [2022-11-21 17:12:27,355 INFO L231 Difference]: Finished difference. Result has 129 places, 76 transitions, 377 flow [2022-11-21 17:12:27,356 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=377, PETRI_PLACES=129, PETRI_TRANSITIONS=76} [2022-11-21 17:12:27,357 INFO L288 CegarLoopForPetriNet]: 65 programPoint places, 64 predicate places. [2022-11-21 17:12:27,357 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 76 transitions, 377 flow [2022-11-21 17:12:27,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 52.44444444444444) internal successors, (472), 9 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:27,357 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:12:27,358 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:12:27,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 17:12:27,359 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-21 17:12:27,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:12:27,359 INFO L85 PathProgramCache]: Analyzing trace with hash 602906366, now seen corresponding path program 1 times [2022-11-21 17:12:27,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:12:27,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091328845] [2022-11-21 17:12:27,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:12:27,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:12:27,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:12:27,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:12:27,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:12:27,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091328845] [2022-11-21 17:12:27,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091328845] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:12:27,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:12:27,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 17:12:27,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420305442] [2022-11-21 17:12:27,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:12:27,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:12:27,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:12:27,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:12:27,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:12:27,576 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 73 [2022-11-21 17:12:27,577 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 76 transitions, 377 flow. Second operand has 6 states, 6 states have (on average 59.5) internal successors, (357), 6 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:27,577 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:12:27,577 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 73 [2022-11-21 17:12:27,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:12:27,761 INFO L130 PetriNetUnfolder]: 105/393 cut-off events. [2022-11-21 17:12:27,761 INFO L131 PetriNetUnfolder]: For 713/1181 co-relation queries the response was YES. [2022-11-21 17:12:27,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1068 conditions, 393 events. 105/393 cut-off events. For 713/1181 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 2488 event pairs, 8 based on Foata normal form. 3/363 useless extension candidates. Maximal degree in co-relation 1010. Up to 115 conditions per place. [2022-11-21 17:12:27,764 INFO L137 encePairwiseOnDemand]: 64/73 looper letters, 9 selfloop transitions, 8 changer transitions 37/106 dead transitions. [2022-11-21 17:12:27,765 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 106 transitions, 623 flow [2022-11-21 17:12:27,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-21 17:12:27,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-21 17:12:27,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 618 transitions. [2022-11-21 17:12:27,767 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8465753424657534 [2022-11-21 17:12:27,767 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 618 transitions. [2022-11-21 17:12:27,767 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 618 transitions. [2022-11-21 17:12:27,768 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:12:27,768 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 618 transitions. [2022-11-21 17:12:27,769 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 61.8) internal successors, (618), 10 states have internal predecessors, (618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:27,771 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 73.0) internal successors, (803), 11 states have internal predecessors, (803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:27,771 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 73.0) internal successors, (803), 11 states have internal predecessors, (803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:27,771 INFO L175 Difference]: Start difference. First operand has 129 places, 76 transitions, 377 flow. Second operand 10 states and 618 transitions. [2022-11-21 17:12:27,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 106 transitions, 623 flow [2022-11-21 17:12:27,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 106 transitions, 481 flow, removed 41 selfloop flow, removed 30 redundant places. [2022-11-21 17:12:27,778 INFO L231 Difference]: Finished difference. Result has 93 places, 68 transitions, 245 flow [2022-11-21 17:12:27,778 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=255, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=245, PETRI_PLACES=93, PETRI_TRANSITIONS=68} [2022-11-21 17:12:27,779 INFO L288 CegarLoopForPetriNet]: 65 programPoint places, 28 predicate places. [2022-11-21 17:12:27,780 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 68 transitions, 245 flow [2022-11-21 17:12:27,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 59.5) internal successors, (357), 6 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:27,780 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:12:27,780 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:12:27,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 17:12:27,781 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-21 17:12:27,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:12:27,781 INFO L85 PathProgramCache]: Analyzing trace with hash 408544757, now seen corresponding path program 1 times [2022-11-21 17:12:27,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:12:27,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010637774] [2022-11-21 17:12:27,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:12:27,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:12:27,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:12:27,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:12:27,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:12:27,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010637774] [2022-11-21 17:12:27,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010637774] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:12:27,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:12:27,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 17:12:27,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275084440] [2022-11-21 17:12:27,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:12:27,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 17:12:27,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:12:27,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 17:12:27,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-21 17:12:27,970 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 73 [2022-11-21 17:12:27,971 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 68 transitions, 245 flow. Second operand has 7 states, 7 states have (on average 59.42857142857143) internal successors, (416), 7 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:27,971 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:12:27,971 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 73 [2022-11-21 17:12:27,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:12:28,106 INFO L130 PetriNetUnfolder]: 11/112 cut-off events. [2022-11-21 17:12:28,106 INFO L131 PetriNetUnfolder]: For 87/96 co-relation queries the response was YES. [2022-11-21 17:12:28,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 281 conditions, 112 events. 11/112 cut-off events. For 87/96 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 344 event pairs, 0 based on Foata normal form. 4/115 useless extension candidates. Maximal degree in co-relation 267. Up to 17 conditions per place. [2022-11-21 17:12:28,107 INFO L137 encePairwiseOnDemand]: 64/73 looper letters, 0 selfloop transitions, 0 changer transitions 75/75 dead transitions. [2022-11-21 17:12:28,107 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 75 transitions, 350 flow [2022-11-21 17:12:28,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-21 17:12:28,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-21 17:12:28,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 668 transitions. [2022-11-21 17:12:28,110 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8318804483188045 [2022-11-21 17:12:28,110 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 668 transitions. [2022-11-21 17:12:28,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 668 transitions. [2022-11-21 17:12:28,111 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:12:28,111 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 668 transitions. [2022-11-21 17:12:28,115 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 60.72727272727273) internal successors, (668), 11 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:28,124 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 73.0) internal successors, (876), 12 states have internal predecessors, (876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:28,125 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 73.0) internal successors, (876), 12 states have internal predecessors, (876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:28,125 INFO L175 Difference]: Start difference. First operand has 93 places, 68 transitions, 245 flow. Second operand 11 states and 668 transitions. [2022-11-21 17:12:28,125 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 75 transitions, 350 flow [2022-11-21 17:12:28,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 75 transitions, 297 flow, removed 14 selfloop flow, removed 9 redundant places. [2022-11-21 17:12:28,128 INFO L231 Difference]: Finished difference. Result has 83 places, 0 transitions, 0 flow [2022-11-21 17:12:28,128 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=0, PETRI_PLACES=83, PETRI_TRANSITIONS=0} [2022-11-21 17:12:28,130 INFO L288 CegarLoopForPetriNet]: 65 programPoint places, 18 predicate places. [2022-11-21 17:12:28,130 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 0 transitions, 0 flow [2022-11-21 17:12:28,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 59.42857142857143) internal successors, (416), 7 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:28,140 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-11-21 17:12:28,141 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-11-21 17:12:28,142 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-11-21 17:12:28,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 17:12:28,142 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-21 17:12:28,148 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-21 17:12:28,148 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 17:12:28,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 05:12:28 BasicIcfg [2022-11-21 17:12:28,155 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 17:12:28,156 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 17:12:28,156 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 17:12:28,156 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 17:12:28,156 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:12:23" (3/4) ... [2022-11-21 17:12:28,160 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 17:12:28,168 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-21 17:12:28,168 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-21 17:12:28,172 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-11-21 17:12:28,173 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-21 17:12:28,173 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-21 17:12:28,173 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 17:12:28,210 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14889fd1-e487-4c9d-bab4-a41bc1df2425/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 17:12:28,210 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 17:12:28,211 INFO L158 Benchmark]: Toolchain (without parser) took 5757.32ms. Allocated memory was 130.0MB in the beginning and 163.6MB in the end (delta: 33.6MB). Free memory was 85.9MB in the beginning and 42.7MB in the end (delta: 43.2MB). Peak memory consumption was 77.1MB. Max. memory is 16.1GB. [2022-11-21 17:12:28,211 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 130.0MB. Free memory is still 77.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:12:28,212 INFO L158 Benchmark]: CACSL2BoogieTranslator took 745.36ms. Allocated memory is still 130.0MB. Free memory was 85.5MB in the beginning and 65.9MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-21 17:12:28,212 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.21ms. Allocated memory is still 130.0MB. Free memory was 65.9MB in the beginning and 64.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:12:28,213 INFO L158 Benchmark]: Boogie Preprocessor took 56.28ms. Allocated memory is still 130.0MB. Free memory was 64.1MB in the beginning and 62.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:12:28,213 INFO L158 Benchmark]: RCFGBuilder took 530.57ms. Allocated memory was 130.0MB in the beginning and 163.6MB in the end (delta: 33.6MB). Free memory was 62.4MB in the beginning and 127.6MB in the end (delta: -65.2MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. [2022-11-21 17:12:28,214 INFO L158 Benchmark]: TraceAbstraction took 4279.57ms. Allocated memory is still 163.6MB. Free memory was 127.6MB in the beginning and 44.8MB in the end (delta: 82.8MB). Peak memory consumption was 81.9MB. Max. memory is 16.1GB. [2022-11-21 17:12:28,214 INFO L158 Benchmark]: Witness Printer took 54.78ms. Allocated memory is still 163.6MB. Free memory was 44.8MB in the beginning and 42.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:12:28,217 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 130.0MB. Free memory is still 77.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 745.36ms. Allocated memory is still 130.0MB. Free memory was 85.5MB in the beginning and 65.9MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.21ms. Allocated memory is still 130.0MB. Free memory was 65.9MB in the beginning and 64.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.28ms. Allocated memory is still 130.0MB. Free memory was 64.1MB in the beginning and 62.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 530.57ms. Allocated memory was 130.0MB in the beginning and 163.6MB in the end (delta: 33.6MB). Free memory was 62.4MB in the beginning and 127.6MB in the end (delta: -65.2MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. * TraceAbstraction took 4279.57ms. Allocated memory is still 163.6MB. Free memory was 127.6MB in the beginning and 44.8MB in the end (delta: 82.8MB). Peak memory consumption was 81.9MB. Max. memory is 16.1GB. * Witness Printer took 54.78ms. Allocated memory is still 163.6MB. Free memory was 44.8MB in the beginning and 42.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: 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 5 procedures, 88 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: 4.1s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 328 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 328 mSDsluCounter, 289 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 229 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 340 IncrementalHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 60 mSDtfsCounter, 340 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=377occurred in iteration=2, InterpolantAutomatonStates: 71, 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, 1.5s InterpolantComputationTime, 192 NumberOfCodeBlocks, 192 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 188 ConstructedInterpolants, 0 QuantifiedInterpolants, 850 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! [2022-11-21 17:12:28,252 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14889fd1-e487-4c9d-bab4-a41bc1df2425/bin/uautomizer-vX5HgA9Q3a/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