./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix029_power.oepc_pso.oepc_rmo.oepc_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f 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_8f21bbf9-5442-4e16-9c19-2867abe737cf/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f21bbf9-5442-4e16-9c19-2867abe737cf/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f21bbf9-5442-4e16-9c19-2867abe737cf/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f21bbf9-5442-4e16-9c19-2867abe737cf/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix029_power.oepc_pso.oepc_rmo.oepc_tso.oepc_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f21bbf9-5442-4e16-9c19-2867abe737cf/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f21bbf9-5442-4e16-9c19-2867abe737cf/bin/uautomizer-tPACEb0tL8 --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 bf24bf121ebc3ec235b4f1c2077ea9383a107f5a378f2adee68bd8bbb156b315 --- 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-e04fb08 [2022-11-16 10:59:01,273 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 10:59:01,275 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 10:59:01,296 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 10:59:01,296 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 10:59:01,298 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 10:59:01,299 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 10:59:01,301 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 10:59:01,302 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 10:59:01,303 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 10:59:01,304 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 10:59:01,306 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 10:59:01,306 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 10:59:01,307 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 10:59:01,308 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 10:59:01,310 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 10:59:01,311 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 10:59:01,319 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 10:59:01,321 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 10:59:01,325 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 10:59:01,329 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 10:59:01,331 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 10:59:01,332 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 10:59:01,333 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 10:59:01,336 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 10:59:01,337 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 10:59:01,337 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 10:59:01,338 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 10:59:01,338 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 10:59:01,340 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 10:59:01,340 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 10:59:01,341 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 10:59:01,342 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 10:59:01,342 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 10:59:01,343 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 10:59:01,344 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 10:59:01,345 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 10:59:01,345 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 10:59:01,345 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 10:59:01,346 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 10:59:01,347 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 10:59:01,348 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f21bbf9-5442-4e16-9c19-2867abe737cf/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 10:59:01,377 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 10:59:01,377 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 10:59:01,378 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 10:59:01,378 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 10:59:01,379 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 10:59:01,379 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 10:59:01,390 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 10:59:01,391 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 10:59:01,391 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 10:59:01,391 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 10:59:01,393 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 10:59:01,393 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 10:59:01,393 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 10:59:01,394 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 10:59:01,394 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 10:59:01,394 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 10:59:01,394 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 10:59:01,395 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 10:59:01,395 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 10:59:01,396 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 10:59:01,397 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 10:59:01,398 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 10:59:01,399 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 10:59:01,399 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 10:59:01,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 10:59:01,400 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 10:59:01,400 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 10:59:01,404 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 10:59:01,405 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 10:59:01,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 10:59:01,405 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 10:59:01,406 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 10:59:01,407 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 10:59:01,407 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_8f21bbf9-5442-4e16-9c19-2867abe737cf/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f21bbf9-5442-4e16-9c19-2867abe737cf/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf24bf121ebc3ec235b4f1c2077ea9383a107f5a378f2adee68bd8bbb156b315 [2022-11-16 10:59:01,673 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 10:59:01,698 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 10:59:01,702 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 10:59:01,703 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 10:59:01,704 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 10:59:01,705 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f21bbf9-5442-4e16-9c19-2867abe737cf/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/pthread-wmm/mix029_power.oepc_pso.oepc_rmo.oepc_tso.oepc_tso.opt.i [2022-11-16 10:59:01,786 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f21bbf9-5442-4e16-9c19-2867abe737cf/bin/uautomizer-tPACEb0tL8/data/f9105a342/544bfee8ab254254b0b2d6416d2fa93b/FLAG07017a562 [2022-11-16 10:59:02,255 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 10:59:02,255 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f21bbf9-5442-4e16-9c19-2867abe737cf/sv-benchmarks/c/pthread-wmm/mix029_power.oepc_pso.oepc_rmo.oepc_tso.oepc_tso.opt.i [2022-11-16 10:59:02,288 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f21bbf9-5442-4e16-9c19-2867abe737cf/bin/uautomizer-tPACEb0tL8/data/f9105a342/544bfee8ab254254b0b2d6416d2fa93b/FLAG07017a562 [2022-11-16 10:59:02,579 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f21bbf9-5442-4e16-9c19-2867abe737cf/bin/uautomizer-tPACEb0tL8/data/f9105a342/544bfee8ab254254b0b2d6416d2fa93b [2022-11-16 10:59:02,582 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 10:59:02,583 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 10:59:02,587 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 10:59:02,588 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 10:59:02,591 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 10:59:02,592 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:59:02" (1/1) ... [2022-11-16 10:59:02,593 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a7d2d06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:59:02, skipping insertion in model container [2022-11-16 10:59:02,594 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:59:02" (1/1) ... [2022-11-16 10:59:02,600 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 10:59:02,667 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 10:59:02,902 WARN L229 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_8f21bbf9-5442-4e16-9c19-2867abe737cf/sv-benchmarks/c/pthread-wmm/mix029_power.oepc_pso.oepc_rmo.oepc_tso.oepc_tso.opt.i[986,999] [2022-11-16 10:59:03,202 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 10:59:03,212 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 10:59:03,224 WARN L229 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_8f21bbf9-5442-4e16-9c19-2867abe737cf/sv-benchmarks/c/pthread-wmm/mix029_power.oepc_pso.oepc_rmo.oepc_tso.oepc_tso.opt.i[986,999] [2022-11-16 10:59:03,265 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 10:59:03,304 INFO L208 MainTranslator]: Completed translation [2022-11-16 10:59:03,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:59:03 WrapperNode [2022-11-16 10:59:03,305 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 10:59:03,306 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 10:59:03,306 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 10:59:03,307 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 10:59:03,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:59:03" (1/1) ... [2022-11-16 10:59:03,346 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:59:03" (1/1) ... [2022-11-16 10:59:03,395 INFO L138 Inliner]: procedures = 177, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 144 [2022-11-16 10:59:03,403 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 10:59:03,404 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 10:59:03,404 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 10:59:03,405 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 10:59:03,414 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:59:03" (1/1) ... [2022-11-16 10:59:03,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:59:03" (1/1) ... [2022-11-16 10:59:03,418 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:59:03" (1/1) ... [2022-11-16 10:59:03,418 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:59:03" (1/1) ... [2022-11-16 10:59:03,427 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:59:03" (1/1) ... [2022-11-16 10:59:03,429 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:59:03" (1/1) ... [2022-11-16 10:59:03,431 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:59:03" (1/1) ... [2022-11-16 10:59:03,433 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:59:03" (1/1) ... [2022-11-16 10:59:03,437 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 10:59:03,438 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 10:59:03,438 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 10:59:03,438 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 10:59:03,439 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:59:03" (1/1) ... [2022-11-16 10:59:03,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 10:59:03,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f21bbf9-5442-4e16-9c19-2867abe737cf/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 10:59:03,481 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f21bbf9-5442-4e16-9c19-2867abe737cf/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 10:59:03,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f21bbf9-5442-4e16-9c19-2867abe737cf/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 10:59:03,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 10:59:03,524 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 10:59:03,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 10:59:03,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 10:59:03,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 10:59:03,525 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-16 10:59:03,525 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-16 10:59:03,527 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-16 10:59:03,527 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-16 10:59:03,528 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-16 10:59:03,528 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-16 10:59:03,528 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-16 10:59:03,528 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-16 10:59:03,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 10:59:03,529 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 10:59:03,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 10:59:03,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 10:59:03,531 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 10:59:03,677 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 10:59:03,679 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 10:59:04,191 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 10:59:04,400 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 10:59:04,400 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 10:59:04,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 10:59:04 BoogieIcfgContainer [2022-11-16 10:59:04,404 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 10:59:04,407 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 10:59:04,408 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 10:59:04,414 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 10:59:04,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 10:59:02" (1/3) ... [2022-11-16 10:59:04,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15507879 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:59:04, skipping insertion in model container [2022-11-16 10:59:04,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:59:03" (2/3) ... [2022-11-16 10:59:04,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15507879 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:59:04, skipping insertion in model container [2022-11-16 10:59:04,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 10:59:04" (3/3) ... [2022-11-16 10:59:04,418 INFO L112 eAbstractionObserver]: Analyzing ICFG mix029_power.oepc_pso.oepc_rmo.oepc_tso.oepc_tso.opt.i [2022-11-16 10:59:04,430 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 10:59:04,441 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 10:59:04,441 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-16 10:59:04,441 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 10:59:04,535 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 10:59:04,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 148 places, 137 transitions, 294 flow [2022-11-16 10:59:04,691 INFO L130 PetriNetUnfolder]: 2/133 cut-off events. [2022-11-16 10:59:04,692 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 10:59:04,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 133 events. 2/133 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 71 event pairs, 0 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 92. Up to 2 conditions per place. [2022-11-16 10:59:04,699 INFO L82 GeneralOperation]: Start removeDead. Operand has 148 places, 137 transitions, 294 flow [2022-11-16 10:59:04,710 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 144 places, 133 transitions, 278 flow [2022-11-16 10:59:04,719 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 10:59:04,725 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;@5d02640c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 10:59:04,725 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-16 10:59:04,734 INFO L130 PetriNetUnfolder]: 0/50 cut-off events. [2022-11-16 10:59:04,734 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 10:59:04,735 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:59:04,735 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] [2022-11-16 10:59:04,736 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 10:59:04,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:59:04,741 INFO L85 PathProgramCache]: Analyzing trace with hash 675871129, now seen corresponding path program 1 times [2022-11-16 10:59:04,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:59:04,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846316441] [2022-11-16 10:59:04,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:59:04,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:59:04,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:59:05,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:59:05,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:59:05,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846316441] [2022-11-16 10:59:05,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846316441] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:59:05,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:59:05,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 10:59:05,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553258518] [2022-11-16 10:59:05,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:59:05,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:59:05,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:59:05,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:59:05,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:59:05,481 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 137 [2022-11-16 10:59:05,486 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 133 transitions, 278 flow. Second operand has 3 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 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) [2022-11-16 10:59:05,486 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:59:05,486 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 137 [2022-11-16 10:59:05,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:59:05,756 INFO L130 PetriNetUnfolder]: 162/620 cut-off events. [2022-11-16 10:59:05,757 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-11-16 10:59:05,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 926 conditions, 620 events. 162/620 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 3411 event pairs, 132 based on Foata normal form. 41/619 useless extension candidates. Maximal degree in co-relation 869. Up to 191 conditions per place. [2022-11-16 10:59:05,770 INFO L137 encePairwiseOnDemand]: 132/137 looper letters, 18 selfloop transitions, 2 changer transitions 0/137 dead transitions. [2022-11-16 10:59:05,770 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 137 transitions, 335 flow [2022-11-16 10:59:05,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:59:05,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 10:59:05,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 388 transitions. [2022-11-16 10:59:05,793 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9440389294403893 [2022-11-16 10:59:05,793 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 388 transitions. [2022-11-16 10:59:05,794 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 388 transitions. [2022-11-16 10:59:05,796 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:59:05,798 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 388 transitions. [2022-11-16 10:59:05,802 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 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) [2022-11-16 10:59:05,810 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 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) [2022-11-16 10:59:05,810 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 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) [2022-11-16 10:59:05,812 INFO L175 Difference]: Start difference. First operand has 144 places, 133 transitions, 278 flow. Second operand 3 states and 388 transitions. [2022-11-16 10:59:05,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 137 transitions, 335 flow [2022-11-16 10:59:05,817 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 137 transitions, 328 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 10:59:05,822 INFO L231 Difference]: Finished difference. Result has 140 places, 129 transitions, 270 flow [2022-11-16 10:59:05,824 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=270, PETRI_PLACES=140, PETRI_TRANSITIONS=129} [2022-11-16 10:59:05,828 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, -4 predicate places. [2022-11-16 10:59:05,829 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 129 transitions, 270 flow [2022-11-16 10:59:05,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 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) [2022-11-16 10:59:05,830 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:59:05,830 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, 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] [2022-11-16 10:59:05,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 10:59:05,831 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 10:59:05,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:59:05,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1497499178, now seen corresponding path program 1 times [2022-11-16 10:59:05,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:59:05,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120030590] [2022-11-16 10:59:05,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:59:05,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:59:05,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:59:06,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:59:06,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:59:06,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120030590] [2022-11-16 10:59:06,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120030590] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:59:06,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:59:06,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 10:59:06,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598098408] [2022-11-16 10:59:06,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:59:06,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 10:59:06,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:59:06,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 10:59:06,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-16 10:59:06,540 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 137 [2022-11-16 10:59:06,542 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 129 transitions, 270 flow. Second operand has 7 states, 7 states have (on average 106.28571428571429) internal successors, (744), 7 states have internal predecessors, (744), 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) [2022-11-16 10:59:06,542 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:59:06,542 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 137 [2022-11-16 10:59:06,542 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:59:11,763 INFO L130 PetriNetUnfolder]: 11171/23290 cut-off events. [2022-11-16 10:59:11,764 INFO L131 PetriNetUnfolder]: For 1042/1042 co-relation queries the response was YES. [2022-11-16 10:59:11,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39811 conditions, 23290 events. 11171/23290 cut-off events. For 1042/1042 co-relation queries the response was YES. Maximal size of possible extension queue 1064. Compared 227321 event pairs, 1117 based on Foata normal form. 0/22860 useless extension candidates. Maximal degree in co-relation 39751. Up to 4452 conditions per place. [2022-11-16 10:59:12,055 INFO L137 encePairwiseOnDemand]: 126/137 looper letters, 45 selfloop transitions, 7 changer transitions 119/258 dead transitions. [2022-11-16 10:59:12,055 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 258 transitions, 866 flow [2022-11-16 10:59:12,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 10:59:12,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-16 10:59:12,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1513 transitions. [2022-11-16 10:59:12,060 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8495227400336889 [2022-11-16 10:59:12,060 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1513 transitions. [2022-11-16 10:59:12,061 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1513 transitions. [2022-11-16 10:59:12,062 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:59:12,062 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1513 transitions. [2022-11-16 10:59:12,066 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 116.38461538461539) internal successors, (1513), 13 states have internal predecessors, (1513), 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) [2022-11-16 10:59:12,070 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 137.0) internal successors, (1918), 14 states have internal predecessors, (1918), 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) [2022-11-16 10:59:12,072 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 137.0) internal successors, (1918), 14 states have internal predecessors, (1918), 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) [2022-11-16 10:59:12,072 INFO L175 Difference]: Start difference. First operand has 140 places, 129 transitions, 270 flow. Second operand 13 states and 1513 transitions. [2022-11-16 10:59:12,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 258 transitions, 866 flow [2022-11-16 10:59:12,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 258 transitions, 840 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 10:59:12,078 INFO L231 Difference]: Finished difference. Result has 162 places, 120 transitions, 338 flow [2022-11-16 10:59:12,078 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=338, PETRI_PLACES=162, PETRI_TRANSITIONS=120} [2022-11-16 10:59:12,079 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 18 predicate places. [2022-11-16 10:59:12,079 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 120 transitions, 338 flow [2022-11-16 10:59:12,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 106.28571428571429) internal successors, (744), 7 states have internal predecessors, (744), 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) [2022-11-16 10:59:12,080 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:59:12,081 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, 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] [2022-11-16 10:59:12,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 10:59:12,081 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 10:59:12,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:59:12,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1453685108, now seen corresponding path program 1 times [2022-11-16 10:59:12,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:59:12,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442307307] [2022-11-16 10:59:12,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:59:12,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:59:12,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:59:12,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:59:12,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:59:12,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442307307] [2022-11-16 10:59:12,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442307307] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:59:12,426 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:59:12,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 10:59:12,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369541083] [2022-11-16 10:59:12,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:59:12,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 10:59:12,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:59:12,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 10:59:12,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-16 10:59:12,431 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 137 [2022-11-16 10:59:12,432 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 120 transitions, 338 flow. Second operand has 7 states, 7 states have (on average 106.57142857142857) internal successors, (746), 7 states have internal predecessors, (746), 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) [2022-11-16 10:59:12,432 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:59:12,433 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 137 [2022-11-16 10:59:12,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:59:15,599 INFO L130 PetriNetUnfolder]: 7722/13160 cut-off events. [2022-11-16 10:59:15,599 INFO L131 PetriNetUnfolder]: For 25283/25295 co-relation queries the response was YES. [2022-11-16 10:59:15,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39850 conditions, 13160 events. 7722/13160 cut-off events. For 25283/25295 co-relation queries the response was YES. Maximal size of possible extension queue 696. Compared 97953 event pairs, 1048 based on Foata normal form. 248/12986 useless extension candidates. Maximal degree in co-relation 39778. Up to 4126 conditions per place. [2022-11-16 10:59:15,749 INFO L137 encePairwiseOnDemand]: 124/137 looper letters, 48 selfloop transitions, 16 changer transitions 91/242 dead transitions. [2022-11-16 10:59:15,750 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 242 transitions, 1298 flow [2022-11-16 10:59:15,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 10:59:15,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-16 10:59:15,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1505 transitions. [2022-11-16 10:59:15,757 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8450308815272319 [2022-11-16 10:59:15,758 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1505 transitions. [2022-11-16 10:59:15,758 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1505 transitions. [2022-11-16 10:59:15,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:59:15,759 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1505 transitions. [2022-11-16 10:59:15,764 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 115.76923076923077) internal successors, (1505), 13 states have internal predecessors, (1505), 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) [2022-11-16 10:59:15,769 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 137.0) internal successors, (1918), 14 states have internal predecessors, (1918), 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) [2022-11-16 10:59:15,771 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 137.0) internal successors, (1918), 14 states have internal predecessors, (1918), 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) [2022-11-16 10:59:15,771 INFO L175 Difference]: Start difference. First operand has 162 places, 120 transitions, 338 flow. Second operand 13 states and 1505 transitions. [2022-11-16 10:59:15,771 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 242 transitions, 1298 flow [2022-11-16 10:59:15,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 242 transitions, 1270 flow, removed 12 selfloop flow, removed 4 redundant places. [2022-11-16 10:59:15,936 INFO L231 Difference]: Finished difference. Result has 159 places, 129 transitions, 499 flow [2022-11-16 10:59:15,936 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=499, PETRI_PLACES=159, PETRI_TRANSITIONS=129} [2022-11-16 10:59:15,937 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 15 predicate places. [2022-11-16 10:59:15,937 INFO L495 AbstractCegarLoop]: Abstraction has has 159 places, 129 transitions, 499 flow [2022-11-16 10:59:15,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 106.57142857142857) internal successors, (746), 7 states have internal predecessors, (746), 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) [2022-11-16 10:59:15,938 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:59:15,938 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, 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] [2022-11-16 10:59:15,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 10:59:15,939 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 10:59:15,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:59:15,940 INFO L85 PathProgramCache]: Analyzing trace with hash -2064822975, now seen corresponding path program 1 times [2022-11-16 10:59:15,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:59:15,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106711696] [2022-11-16 10:59:15,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:59:15,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:59:16,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:59:16,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:59:16,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:59:16,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106711696] [2022-11-16 10:59:16,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106711696] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:59:16,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:59:16,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 10:59:16,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551073444] [2022-11-16 10:59:16,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:59:16,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 10:59:16,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:59:16,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 10:59:16,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 10:59:16,371 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 137 [2022-11-16 10:59:16,372 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 129 transitions, 499 flow. Second operand has 6 states, 6 states have (on average 112.0) internal successors, (672), 6 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) [2022-11-16 10:59:16,373 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:59:16,373 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 137 [2022-11-16 10:59:16,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:59:22,787 INFO L130 PetriNetUnfolder]: 20574/35680 cut-off events. [2022-11-16 10:59:22,788 INFO L131 PetriNetUnfolder]: For 40346/48503 co-relation queries the response was YES. [2022-11-16 10:59:22,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83873 conditions, 35680 events. 20574/35680 cut-off events. For 40346/48503 co-relation queries the response was YES. Maximal size of possible extension queue 2158. Compared 323464 event pairs, 1849 based on Foata normal form. 328/33454 useless extension candidates. Maximal degree in co-relation 83793. Up to 11011 conditions per place. [2022-11-16 10:59:23,129 INFO L137 encePairwiseOnDemand]: 126/137 looper letters, 93 selfloop transitions, 20 changer transitions 0/218 dead transitions. [2022-11-16 10:59:23,129 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 218 transitions, 1021 flow [2022-11-16 10:59:23,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 10:59:23,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-16 10:59:23,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1207 transitions. [2022-11-16 10:59:23,134 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.881021897810219 [2022-11-16 10:59:23,134 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1207 transitions. [2022-11-16 10:59:23,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1207 transitions. [2022-11-16 10:59:23,139 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:59:23,139 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1207 transitions. [2022-11-16 10:59:23,142 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 120.7) internal successors, (1207), 10 states have internal predecessors, (1207), 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) [2022-11-16 10:59:23,145 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 137.0) internal successors, (1507), 11 states have internal predecessors, (1507), 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) [2022-11-16 10:59:23,146 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 137.0) internal successors, (1507), 11 states have internal predecessors, (1507), 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) [2022-11-16 10:59:23,146 INFO L175 Difference]: Start difference. First operand has 159 places, 129 transitions, 499 flow. Second operand 10 states and 1207 transitions. [2022-11-16 10:59:23,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 218 transitions, 1021 flow [2022-11-16 10:59:23,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 218 transitions, 997 flow, removed 12 selfloop flow, removed 9 redundant places. [2022-11-16 10:59:23,304 INFO L231 Difference]: Finished difference. Result has 156 places, 147 transitions, 618 flow [2022-11-16 10:59:23,309 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=475, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=618, PETRI_PLACES=156, PETRI_TRANSITIONS=147} [2022-11-16 10:59:23,311 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 12 predicate places. [2022-11-16 10:59:23,311 INFO L495 AbstractCegarLoop]: Abstraction has has 156 places, 147 transitions, 618 flow [2022-11-16 10:59:23,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 112.0) internal successors, (672), 6 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) [2022-11-16 10:59:23,312 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:59:23,313 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, 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] [2022-11-16 10:59:23,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 10:59:23,313 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 10:59:23,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:59:23,314 INFO L85 PathProgramCache]: Analyzing trace with hash 389400409, now seen corresponding path program 1 times [2022-11-16 10:59:23,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:59:23,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997658518] [2022-11-16 10:59:23,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:59:23,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:59:23,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:59:23,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:59:23,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:59:23,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997658518] [2022-11-16 10:59:23,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997658518] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:59:23,618 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:59:23,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 10:59:23,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215180054] [2022-11-16 10:59:23,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:59:23,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 10:59:23,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:59:23,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 10:59:23,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-16 10:59:23,622 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 137 [2022-11-16 10:59:23,623 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 147 transitions, 618 flow. Second operand has 7 states, 7 states have (on average 106.85714285714286) internal successors, (748), 7 states have internal predecessors, (748), 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) [2022-11-16 10:59:23,623 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:59:23,623 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 137 [2022-11-16 10:59:23,624 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:59:28,515 INFO L130 PetriNetUnfolder]: 10191/24696 cut-off events. [2022-11-16 10:59:28,515 INFO L131 PetriNetUnfolder]: For 43105/46917 co-relation queries the response was YES. [2022-11-16 10:59:28,636 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71760 conditions, 24696 events. 10191/24696 cut-off events. For 43105/46917 co-relation queries the response was YES. Maximal size of possible extension queue 1559. Compared 285032 event pairs, 2109 based on Foata normal form. 614/23914 useless extension candidates. Maximal degree in co-relation 71676. Up to 4026 conditions per place. [2022-11-16 10:59:28,945 INFO L137 encePairwiseOnDemand]: 125/137 looper letters, 131 selfloop transitions, 39 changer transitions 0/275 dead transitions. [2022-11-16 10:59:28,945 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 275 transitions, 1674 flow [2022-11-16 10:59:28,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 10:59:28,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-16 10:59:28,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1502 transitions. [2022-11-16 10:59:28,981 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8433464345873105 [2022-11-16 10:59:28,981 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1502 transitions. [2022-11-16 10:59:28,981 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1502 transitions. [2022-11-16 10:59:28,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:59:28,983 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1502 transitions. [2022-11-16 10:59:28,987 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 115.53846153846153) internal successors, (1502), 13 states have internal predecessors, (1502), 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) [2022-11-16 10:59:28,994 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 137.0) internal successors, (1918), 14 states have internal predecessors, (1918), 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) [2022-11-16 10:59:29,001 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 137.0) internal successors, (1918), 14 states have internal predecessors, (1918), 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) [2022-11-16 10:59:29,003 INFO L175 Difference]: Start difference. First operand has 156 places, 147 transitions, 618 flow. Second operand 13 states and 1502 transitions. [2022-11-16 10:59:29,003 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 275 transitions, 1674 flow [2022-11-16 10:59:29,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 275 transitions, 1672 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 10:59:29,243 INFO L231 Difference]: Finished difference. Result has 179 places, 177 transitions, 1111 flow [2022-11-16 10:59:29,244 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=616, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1111, PETRI_PLACES=179, PETRI_TRANSITIONS=177} [2022-11-16 10:59:29,244 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 35 predicate places. [2022-11-16 10:59:29,245 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 177 transitions, 1111 flow [2022-11-16 10:59:29,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 106.85714285714286) internal successors, (748), 7 states have internal predecessors, (748), 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) [2022-11-16 10:59:29,246 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:59:29,246 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, 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] [2022-11-16 10:59:29,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 10:59:29,246 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 10:59:29,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:59:29,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1816539290, now seen corresponding path program 1 times [2022-11-16 10:59:29,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:59:29,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482745014] [2022-11-16 10:59:29,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:59:29,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:59:29,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:59:29,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:59:29,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:59:29,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482745014] [2022-11-16 10:59:29,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482745014] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:59:29,575 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:59:29,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 10:59:29,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34973747] [2022-11-16 10:59:29,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:59:29,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 10:59:29,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:59:29,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 10:59:29,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-16 10:59:29,579 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 137 [2022-11-16 10:59:29,582 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 177 transitions, 1111 flow. Second operand has 7 states, 7 states have (on average 107.0) internal successors, (749), 7 states have internal predecessors, (749), 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) [2022-11-16 10:59:29,582 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:59:29,582 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 137 [2022-11-16 10:59:29,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:59:37,147 INFO L130 PetriNetUnfolder]: 15138/36636 cut-off events. [2022-11-16 10:59:37,147 INFO L131 PetriNetUnfolder]: For 118405/125268 co-relation queries the response was YES. [2022-11-16 10:59:37,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118957 conditions, 36636 events. 15138/36636 cut-off events. For 118405/125268 co-relation queries the response was YES. Maximal size of possible extension queue 2258. Compared 450220 event pairs, 3442 based on Foata normal form. 626/35068 useless extension candidates. Maximal degree in co-relation 118860. Up to 7104 conditions per place. [2022-11-16 10:59:37,555 INFO L137 encePairwiseOnDemand]: 125/137 looper letters, 116 selfloop transitions, 32 changer transitions 0/253 dead transitions. [2022-11-16 10:59:37,555 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 253 transitions, 2023 flow [2022-11-16 10:59:37,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 10:59:37,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-16 10:59:37,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 821 transitions. [2022-11-16 10:59:37,559 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8561001042752867 [2022-11-16 10:59:37,560 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 821 transitions. [2022-11-16 10:59:37,560 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 821 transitions. [2022-11-16 10:59:37,564 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:59:37,565 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 821 transitions. [2022-11-16 10:59:37,569 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 117.28571428571429) internal successors, (821), 7 states have internal predecessors, (821), 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) [2022-11-16 10:59:37,573 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 137.0) internal successors, (1096), 8 states have internal predecessors, (1096), 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) [2022-11-16 10:59:37,575 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 137.0) internal successors, (1096), 8 states have internal predecessors, (1096), 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) [2022-11-16 10:59:37,575 INFO L175 Difference]: Start difference. First operand has 179 places, 177 transitions, 1111 flow. Second operand 7 states and 821 transitions. [2022-11-16 10:59:37,575 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 253 transitions, 2023 flow [2022-11-16 10:59:38,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 253 transitions, 1987 flow, removed 18 selfloop flow, removed 0 redundant places. [2022-11-16 10:59:38,246 INFO L231 Difference]: Finished difference. Result has 191 places, 191 transitions, 1414 flow [2022-11-16 10:59:38,246 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1089, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1414, PETRI_PLACES=191, PETRI_TRANSITIONS=191} [2022-11-16 10:59:38,247 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 47 predicate places. [2022-11-16 10:59:38,247 INFO L495 AbstractCegarLoop]: Abstraction has has 191 places, 191 transitions, 1414 flow [2022-11-16 10:59:38,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 107.0) internal successors, (749), 7 states have internal predecessors, (749), 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) [2022-11-16 10:59:38,248 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:59:38,248 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, 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] [2022-11-16 10:59:38,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 10:59:38,249 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 10:59:38,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:59:38,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1304918976, now seen corresponding path program 2 times [2022-11-16 10:59:38,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:59:38,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386664271] [2022-11-16 10:59:38,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:59:38,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:59:38,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:59:38,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:59:38,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:59:38,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386664271] [2022-11-16 10:59:38,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386664271] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:59:38,696 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:59:38,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 10:59:38,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134148090] [2022-11-16 10:59:38,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:59:38,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 10:59:38,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:59:38,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 10:59:38,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-16 10:59:38,705 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 137 [2022-11-16 10:59:38,707 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 191 transitions, 1414 flow. Second operand has 7 states, 7 states have (on average 112.0) internal successors, (784), 7 states have internal predecessors, (784), 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) [2022-11-16 10:59:38,707 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:59:38,707 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 137 [2022-11-16 10:59:38,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:59:54,753 INFO L130 PetriNetUnfolder]: 43269/76815 cut-off events. [2022-11-16 10:59:54,753 INFO L131 PetriNetUnfolder]: For 226193/247648 co-relation queries the response was YES. [2022-11-16 10:59:55,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 250568 conditions, 76815 events. 43269/76815 cut-off events. For 226193/247648 co-relation queries the response was YES. Maximal size of possible extension queue 4978. Compared 804434 event pairs, 1578 based on Foata normal form. 2043/76034 useless extension candidates. Maximal degree in co-relation 250467. Up to 16242 conditions per place. [2022-11-16 10:59:55,716 INFO L137 encePairwiseOnDemand]: 126/137 looper letters, 120 selfloop transitions, 36 changer transitions 37/328 dead transitions. [2022-11-16 10:59:55,716 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 328 transitions, 2842 flow [2022-11-16 10:59:55,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 10:59:55,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-16 10:59:55,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1574 transitions. [2022-11-16 10:59:55,722 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8837731611454239 [2022-11-16 10:59:55,722 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1574 transitions. [2022-11-16 10:59:55,722 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1574 transitions. [2022-11-16 10:59:55,723 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:59:55,724 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1574 transitions. [2022-11-16 10:59:55,727 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 121.07692307692308) internal successors, (1574), 13 states have internal predecessors, (1574), 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) [2022-11-16 10:59:55,730 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 137.0) internal successors, (1918), 14 states have internal predecessors, (1918), 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) [2022-11-16 10:59:55,731 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 137.0) internal successors, (1918), 14 states have internal predecessors, (1918), 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) [2022-11-16 10:59:55,731 INFO L175 Difference]: Start difference. First operand has 191 places, 191 transitions, 1414 flow. Second operand 13 states and 1574 transitions. [2022-11-16 10:59:55,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 328 transitions, 2842 flow [2022-11-16 11:00:00,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 328 transitions, 2828 flow, removed 7 selfloop flow, removed 0 redundant places. [2022-11-16 11:00:00,271 INFO L231 Difference]: Finished difference. Result has 209 places, 196 transitions, 1498 flow [2022-11-16 11:00:00,272 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1400, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1498, PETRI_PLACES=209, PETRI_TRANSITIONS=196} [2022-11-16 11:00:00,272 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 65 predicate places. [2022-11-16 11:00:00,273 INFO L495 AbstractCegarLoop]: Abstraction has has 209 places, 196 transitions, 1498 flow [2022-11-16 11:00:00,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 112.0) internal successors, (784), 7 states have internal predecessors, (784), 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) [2022-11-16 11:00:00,273 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:00:00,274 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, 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] [2022-11-16 11:00:00,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:00:00,274 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:00:00,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:00:00,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1651060937, now seen corresponding path program 1 times [2022-11-16 11:00:00,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:00:00,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211327227] [2022-11-16 11:00:00,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:00:00,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:00:00,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:00:00,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:00:00,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:00:00,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211327227] [2022-11-16 11:00:00,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211327227] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:00:00,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:00:00,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:00:00,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469032439] [2022-11-16 11:00:00,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:00:00,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 11:00:00,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:00:00,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 11:00:00,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:00:00,805 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 137 [2022-11-16 11:00:00,807 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 196 transitions, 1498 flow. Second operand has 8 states, 8 states have (on average 112.125) internal successors, (897), 8 states have internal predecessors, (897), 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) [2022-11-16 11:00:00,807 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:00:00,807 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 137 [2022-11-16 11:00:00,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand