./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b 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_02bd604c-271c-4206-87e9-56d65079d972/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bd604c-271c-4206-87e9-56d65079d972/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bd604c-271c-4206-87e9-56d65079d972/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bd604c-271c-4206-87e9-56d65079d972/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bd604c-271c-4206-87e9-56d65079d972/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bd604c-271c-4206-87e9-56d65079d972/bin/uautomizer-verify-WvqO1wxjHP --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 33fa46fe030c661ecf8ddae0fe7d2b7598ab4fcf90a09fe31211d00189cd239f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:19:55,618 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:19:55,704 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bd604c-271c-4206-87e9-56d65079d972/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 22:19:55,711 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:19:55,712 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:19:55,743 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:19:55,744 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:19:55,745 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:19:55,746 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:19:55,746 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:19:55,748 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:19:55,748 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:19:55,749 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:19:55,749 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:19:55,750 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:19:55,751 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:19:55,751 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:19:55,752 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:19:55,752 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:19:55,753 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:19:55,753 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:19:55,754 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:19:55,755 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:19:55,755 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:19:55,756 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:19:55,756 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:19:55,757 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:19:55,757 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:19:55,758 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:19:55,759 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:19:55,759 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:19:55,760 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:19:55,760 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:19:55,761 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:19:55,761 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:19:55,762 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:19:55,762 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:19:55,763 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:19:55,763 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:19:55,764 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bd604c-271c-4206-87e9-56d65079d972/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bd604c-271c-4206-87e9-56d65079d972/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 33fa46fe030c661ecf8ddae0fe7d2b7598ab4fcf90a09fe31211d00189cd239f [2023-11-06 22:19:56,093 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:19:56,146 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:19:56,167 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:19:56,169 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:19:56,169 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:19:56,171 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bd604c-271c-4206-87e9-56d65079d972/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-06 22:20:00,019 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:20:00,470 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:20:00,471 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bd604c-271c-4206-87e9-56d65079d972/sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-06 22:20:00,492 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bd604c-271c-4206-87e9-56d65079d972/bin/uautomizer-verify-WvqO1wxjHP/data/2fa03abf8/4d950fcbc3b14980865f34f3b543de4c/FLAGd5aa194a9 [2023-11-06 22:20:00,522 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bd604c-271c-4206-87e9-56d65079d972/bin/uautomizer-verify-WvqO1wxjHP/data/2fa03abf8/4d950fcbc3b14980865f34f3b543de4c [2023-11-06 22:20:00,530 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:20:00,534 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:20:00,539 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:20:00,539 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:20:00,546 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:20:00,549 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:20:00" (1/1) ... [2023-11-06 22:20:00,551 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65dbb494 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:00, skipping insertion in model container [2023-11-06 22:20:00,551 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:20:00" (1/1) ... [2023-11-06 22:20:00,641 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:20:00,859 WARN L240 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_02bd604c-271c-4206-87e9-56d65079d972/sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2023-11-06 22:20:01,076 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:20:01,093 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:20:01,118 WARN L240 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_02bd604c-271c-4206-87e9-56d65079d972/sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2023-11-06 22:20:01,208 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:20:01,266 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:20:01,266 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:20:01,275 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:20:01,276 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:01 WrapperNode [2023-11-06 22:20:01,277 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:20:01,278 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:20:01,279 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:20:01,279 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:20:01,289 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:01" (1/1) ... [2023-11-06 22:20:01,324 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:01" (1/1) ... [2023-11-06 22:20:01,367 INFO L138 Inliner]: procedures = 177, calls = 66, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 84 [2023-11-06 22:20:01,371 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:20:01,372 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:20:01,373 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:20:01,373 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:20:01,385 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:01" (1/1) ... [2023-11-06 22:20:01,385 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:01" (1/1) ... [2023-11-06 22:20:01,389 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:01" (1/1) ... [2023-11-06 22:20:01,389 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:01" (1/1) ... [2023-11-06 22:20:01,407 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:01" (1/1) ... [2023-11-06 22:20:01,409 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:01" (1/1) ... [2023-11-06 22:20:01,412 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:01" (1/1) ... [2023-11-06 22:20:01,413 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:01" (1/1) ... [2023-11-06 22:20:01,430 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:20:01,431 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:20:01,431 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:20:01,432 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:20:01,433 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:01" (1/1) ... [2023-11-06 22:20:01,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:20:01,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bd604c-271c-4206-87e9-56d65079d972/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:20:01,479 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bd604c-271c-4206-87e9-56d65079d972/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:20:01,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bd604c-271c-4206-87e9-56d65079d972/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:20:01,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:20:01,529 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 22:20:01,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:20:01,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:20:01,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:20:01,530 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-06 22:20:01,530 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-06 22:20:01,531 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-06 22:20:01,531 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-06 22:20:01,531 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-06 22:20:01,534 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-06 22:20:01,534 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-06 22:20:01,535 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-06 22:20:01,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:20:01,535 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 22:20:01,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:20:01,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:20:01,538 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 22:20:01,852 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:20:01,855 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:20:02,213 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:20:02,223 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:20:02,225 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 22:20:02,230 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:20:02 BoogieIcfgContainer [2023-11-06 22:20:02,230 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:20:02,234 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:20:02,235 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:20:02,239 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:20:02,240 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:20:00" (1/3) ... [2023-11-06 22:20:02,242 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bcbd973 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:20:02, skipping insertion in model container [2023-11-06 22:20:02,242 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:01" (2/3) ... [2023-11-06 22:20:02,244 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bcbd973 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:20:02, skipping insertion in model container [2023-11-06 22:20:02,245 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:20:02" (3/3) ... [2023-11-06 22:20:02,248 INFO L112 eAbstractionObserver]: Analyzing ICFG thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-06 22:20:02,260 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:20:02,276 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:20:02,276 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:20:02,276 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:20:02,438 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-06 22:20:02,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 118 places, 107 transitions, 230 flow [2023-11-06 22:20:02,566 INFO L124 PetriNetUnfolderBase]: 2/103 cut-off events. [2023-11-06 22:20:02,567 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:20:02,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 103 events. 2/103 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 58 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 85. Up to 2 conditions per place. [2023-11-06 22:20:02,575 INFO L82 GeneralOperation]: Start removeDead. Operand has 118 places, 107 transitions, 230 flow [2023-11-06 22:20:02,581 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 98 places, 86 transitions, 184 flow [2023-11-06 22:20:02,586 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:20:02,599 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 98 places, 86 transitions, 184 flow [2023-11-06 22:20:02,603 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 98 places, 86 transitions, 184 flow [2023-11-06 22:20:02,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 98 places, 86 transitions, 184 flow [2023-11-06 22:20:02,660 INFO L124 PetriNetUnfolderBase]: 1/86 cut-off events. [2023-11-06 22:20:02,660 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:20:02,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 86 events. 1/86 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2023-11-06 22:20:02,667 INFO L119 LiptonReduction]: Number of co-enabled transitions 1752 [2023-11-06 22:20:06,128 INFO L134 LiptonReduction]: Checked pairs total: 3442 [2023-11-06 22:20:06,128 INFO L136 LiptonReduction]: Total number of compositions: 66 [2023-11-06 22:20:06,150 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:20:06,159 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;@328dd9db, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:20:06,160 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-11-06 22:20:06,170 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:20:06,171 INFO L124 PetriNetUnfolderBase]: 0/20 cut-off events. [2023-11-06 22:20:06,171 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:20:06,171 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:20:06,172 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:20:06,173 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-06 22:20:06,179 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:20:06,180 INFO L85 PathProgramCache]: Analyzing trace with hash 124314918, now seen corresponding path program 1 times [2023-11-06 22:20:06,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:20:06,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317999036] [2023-11-06 22:20:06,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:20:06,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:20:06,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:20:07,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:20:07,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:20:07,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317999036] [2023-11-06 22:20:07,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317999036] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:20:07,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:20:07,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:20:07,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022959089] [2023-11-06 22:20:07,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:20:07,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:20:07,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:20:07,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:20:07,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:20:07,178 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 173 [2023-11-06 22:20:07,183 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 22 transitions, 56 flow. Second operand has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 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) [2023-11-06 22:20:07,184 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:20:07,184 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 173 [2023-11-06 22:20:07,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:20:07,457 INFO L124 PetriNetUnfolderBase]: 700/1137 cut-off events. [2023-11-06 22:20:07,457 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2023-11-06 22:20:07,463 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2244 conditions, 1137 events. 700/1137 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 5651 event pairs, 416 based on Foata normal form. 1/1138 useless extension candidates. Maximal degree in co-relation 2232. Up to 1013 conditions per place. [2023-11-06 22:20:07,475 INFO L140 encePairwiseOnDemand]: 167/173 looper letters, 24 selfloop transitions, 5 changer transitions 0/33 dead transitions. [2023-11-06 22:20:07,475 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 33 transitions, 145 flow [2023-11-06 22:20:07,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:20:07,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:20:07,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 306 transitions. [2023-11-06 22:20:07,508 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5895953757225434 [2023-11-06 22:20:07,509 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 306 transitions. [2023-11-06 22:20:07,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 306 transitions. [2023-11-06 22:20:07,515 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:20:07,518 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 306 transitions. [2023-11-06 22:20:07,526 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 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) [2023-11-06 22:20:07,533 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 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) [2023-11-06 22:20:07,534 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 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) [2023-11-06 22:20:07,536 INFO L175 Difference]: Start difference. First operand has 35 places, 22 transitions, 56 flow. Second operand 3 states and 306 transitions. [2023-11-06 22:20:07,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 33 transitions, 145 flow [2023-11-06 22:20:07,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 33 transitions, 138 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-06 22:20:07,544 INFO L231 Difference]: Finished difference. Result has 34 places, 26 transitions, 85 flow [2023-11-06 22:20:07,547 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=85, PETRI_PLACES=34, PETRI_TRANSITIONS=26} [2023-11-06 22:20:07,553 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -1 predicate places. [2023-11-06 22:20:07,553 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 26 transitions, 85 flow [2023-11-06 22:20:07,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 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) [2023-11-06 22:20:07,554 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:20:07,554 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:20:07,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:20:07,555 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-06 22:20:07,556 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:20:07,556 INFO L85 PathProgramCache]: Analyzing trace with hash -441205487, now seen corresponding path program 1 times [2023-11-06 22:20:07,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:20:07,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651995230] [2023-11-06 22:20:07,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:20:07,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:20:07,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:20:07,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:20:07,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:20:07,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651995230] [2023-11-06 22:20:07,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651995230] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:20:07,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:20:07,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:20:07,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648649181] [2023-11-06 22:20:07,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:20:07,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:20:07,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:20:07,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:20:07,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:20:07,820 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 173 [2023-11-06 22:20:07,821 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 26 transitions, 85 flow. Second operand has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 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) [2023-11-06 22:20:07,821 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:20:07,822 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 173 [2023-11-06 22:20:07,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:20:08,016 INFO L124 PetriNetUnfolderBase]: 623/997 cut-off events. [2023-11-06 22:20:08,016 INFO L125 PetriNetUnfolderBase]: For 205/205 co-relation queries the response was YES. [2023-11-06 22:20:08,020 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2412 conditions, 997 events. 623/997 cut-off events. For 205/205 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 4730 event pairs, 201 based on Foata normal form. 26/1018 useless extension candidates. Maximal degree in co-relation 2401. Up to 568 conditions per place. [2023-11-06 22:20:08,028 INFO L140 encePairwiseOnDemand]: 170/173 looper letters, 26 selfloop transitions, 3 changer transitions 0/33 dead transitions. [2023-11-06 22:20:08,028 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 33 transitions, 163 flow [2023-11-06 22:20:08,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:20:08,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:20:08,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 302 transitions. [2023-11-06 22:20:08,031 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.581888246628131 [2023-11-06 22:20:08,032 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 302 transitions. [2023-11-06 22:20:08,033 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 302 transitions. [2023-11-06 22:20:08,035 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:20:08,036 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 302 transitions. [2023-11-06 22:20:08,037 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 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) [2023-11-06 22:20:08,041 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 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) [2023-11-06 22:20:08,042 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 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) [2023-11-06 22:20:08,042 INFO L175 Difference]: Start difference. First operand has 34 places, 26 transitions, 85 flow. Second operand 3 states and 302 transitions. [2023-11-06 22:20:08,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 33 transitions, 163 flow [2023-11-06 22:20:08,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 33 transitions, 158 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:20:08,044 INFO L231 Difference]: Finished difference. Result has 36 places, 26 transitions, 91 flow [2023-11-06 22:20:08,045 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=91, PETRI_PLACES=36, PETRI_TRANSITIONS=26} [2023-11-06 22:20:08,046 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 1 predicate places. [2023-11-06 22:20:08,046 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 26 transitions, 91 flow [2023-11-06 22:20:08,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 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) [2023-11-06 22:20:08,047 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:20:08,047 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:20:08,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:20:08,048 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-06 22:20:08,048 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:20:08,048 INFO L85 PathProgramCache]: Analyzing trace with hash -441205952, now seen corresponding path program 1 times [2023-11-06 22:20:08,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:20:08,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668038159] [2023-11-06 22:20:08,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:20:08,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:20:08,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:20:08,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:20:08,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:20:08,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668038159] [2023-11-06 22:20:08,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668038159] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:20:08,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:20:08,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:20:08,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325122326] [2023-11-06 22:20:08,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:20:08,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:20:08,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:20:08,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:20:08,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:20:08,365 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 173 [2023-11-06 22:20:08,366 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 26 transitions, 91 flow. Second operand has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 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) [2023-11-06 22:20:08,366 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:20:08,366 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 173 [2023-11-06 22:20:08,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:20:08,594 INFO L124 PetriNetUnfolderBase]: 572/951 cut-off events. [2023-11-06 22:20:08,594 INFO L125 PetriNetUnfolderBase]: For 340/340 co-relation queries the response was YES. [2023-11-06 22:20:08,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2375 conditions, 951 events. 572/951 cut-off events. For 340/340 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 4800 event pairs, 158 based on Foata normal form. 18/966 useless extension candidates. Maximal degree in co-relation 2362. Up to 651 conditions per place. [2023-11-06 22:20:08,607 INFO L140 encePairwiseOnDemand]: 170/173 looper letters, 30 selfloop transitions, 3 changer transitions 0/37 dead transitions. [2023-11-06 22:20:08,607 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 37 transitions, 192 flow [2023-11-06 22:20:08,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:20:08,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:20:08,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 324 transitions. [2023-11-06 22:20:08,611 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6242774566473989 [2023-11-06 22:20:08,612 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 324 transitions. [2023-11-06 22:20:08,612 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 324 transitions. [2023-11-06 22:20:08,612 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:20:08,613 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 324 transitions. [2023-11-06 22:20:08,614 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 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) [2023-11-06 22:20:08,616 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 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) [2023-11-06 22:20:08,617 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 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) [2023-11-06 22:20:08,617 INFO L175 Difference]: Start difference. First operand has 36 places, 26 transitions, 91 flow. Second operand 3 states and 324 transitions. [2023-11-06 22:20:08,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 37 transitions, 192 flow [2023-11-06 22:20:08,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 37 transitions, 184 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:20:08,622 INFO L231 Difference]: Finished difference. Result has 37 places, 26 transitions, 96 flow [2023-11-06 22:20:08,623 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=37, PETRI_TRANSITIONS=26} [2023-11-06 22:20:08,625 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 2 predicate places. [2023-11-06 22:20:08,629 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 26 transitions, 96 flow [2023-11-06 22:20:08,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 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) [2023-11-06 22:20:08,631 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:20:08,631 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:20:08,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:20:08,631 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-06 22:20:08,633 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:20:08,633 INFO L85 PathProgramCache]: Analyzing trace with hash -792467401, now seen corresponding path program 1 times [2023-11-06 22:20:08,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:20:08,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337730697] [2023-11-06 22:20:08,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:20:08,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:20:08,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:20:08,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:20:08,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:20:08,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337730697] [2023-11-06 22:20:08,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337730697] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:20:08,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:20:08,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:20:08,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004656065] [2023-11-06 22:20:08,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:20:08,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:20:08,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:20:08,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:20:08,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:20:08,984 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 173 [2023-11-06 22:20:08,985 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 26 transitions, 96 flow. Second operand has 4 states, 4 states have (on average 93.0) internal successors, (372), 4 states have internal predecessors, (372), 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) [2023-11-06 22:20:08,985 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:20:08,985 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 173 [2023-11-06 22:20:08,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:20:09,357 INFO L124 PetriNetUnfolderBase]: 1069/1659 cut-off events. [2023-11-06 22:20:09,358 INFO L125 PetriNetUnfolderBase]: For 973/973 co-relation queries the response was YES. [2023-11-06 22:20:09,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4341 conditions, 1659 events. 1069/1659 cut-off events. For 973/973 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 8511 event pairs, 220 based on Foata normal form. 48/1684 useless extension candidates. Maximal degree in co-relation 4327. Up to 635 conditions per place. [2023-11-06 22:20:09,379 INFO L140 encePairwiseOnDemand]: 166/173 looper letters, 42 selfloop transitions, 12 changer transitions 0/57 dead transitions. [2023-11-06 22:20:09,379 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 57 transitions, 306 flow [2023-11-06 22:20:09,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:20:09,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-06 22:20:09,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 503 transitions. [2023-11-06 22:20:09,384 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5815028901734104 [2023-11-06 22:20:09,384 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 503 transitions. [2023-11-06 22:20:09,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 503 transitions. [2023-11-06 22:20:09,385 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:20:09,385 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 503 transitions. [2023-11-06 22:20:09,388 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 100.6) internal successors, (503), 5 states have internal predecessors, (503), 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) [2023-11-06 22:20:09,391 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 173.0) internal successors, (1038), 6 states have internal predecessors, (1038), 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) [2023-11-06 22:20:09,393 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 173.0) internal successors, (1038), 6 states have internal predecessors, (1038), 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) [2023-11-06 22:20:09,393 INFO L175 Difference]: Start difference. First operand has 37 places, 26 transitions, 96 flow. Second operand 5 states and 503 transitions. [2023-11-06 22:20:09,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 57 transitions, 306 flow [2023-11-06 22:20:09,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 57 transitions, 294 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:20:09,400 INFO L231 Difference]: Finished difference. Result has 42 places, 33 transitions, 179 flow [2023-11-06 22:20:09,400 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=179, PETRI_PLACES=42, PETRI_TRANSITIONS=33} [2023-11-06 22:20:09,403 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 7 predicate places. [2023-11-06 22:20:09,403 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 33 transitions, 179 flow [2023-11-06 22:20:09,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 93.0) internal successors, (372), 4 states have internal predecessors, (372), 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) [2023-11-06 22:20:09,404 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:20:09,404 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:20:09,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:20:09,405 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-06 22:20:09,406 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:20:09,406 INFO L85 PathProgramCache]: Analyzing trace with hash -792483211, now seen corresponding path program 2 times [2023-11-06 22:20:09,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:20:09,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507173044] [2023-11-06 22:20:09,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:20:09,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:20:09,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:20:09,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:20:09,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:20:09,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507173044] [2023-11-06 22:20:09,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507173044] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:20:09,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:20:09,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:20:09,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738101426] [2023-11-06 22:20:09,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:20:09,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:20:09,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:20:09,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:20:09,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:20:09,655 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 173 [2023-11-06 22:20:09,656 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 33 transitions, 179 flow. Second operand has 4 states, 4 states have (on average 99.0) internal successors, (396), 4 states have internal predecessors, (396), 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) [2023-11-06 22:20:09,657 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:20:09,657 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 173 [2023-11-06 22:20:09,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:20:10,113 INFO L124 PetriNetUnfolderBase]: 1457/2333 cut-off events. [2023-11-06 22:20:10,114 INFO L125 PetriNetUnfolderBase]: For 3698/3728 co-relation queries the response was YES. [2023-11-06 22:20:10,121 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6926 conditions, 2333 events. 1457/2333 cut-off events. For 3698/3728 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 13937 event pairs, 335 based on Foata normal form. 94/2408 useless extension candidates. Maximal degree in co-relation 6909. Up to 770 conditions per place. [2023-11-06 22:20:10,133 INFO L140 encePairwiseOnDemand]: 169/173 looper letters, 49 selfloop transitions, 5 changer transitions 5/63 dead transitions. [2023-11-06 22:20:10,134 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 63 transitions, 431 flow [2023-11-06 22:20:10,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:20:10,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 22:20:10,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 429 transitions. [2023-11-06 22:20:10,136 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.619942196531792 [2023-11-06 22:20:10,137 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 429 transitions. [2023-11-06 22:20:10,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 429 transitions. [2023-11-06 22:20:10,137 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:20:10,138 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 429 transitions. [2023-11-06 22:20:10,139 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 107.25) internal successors, (429), 4 states have internal predecessors, (429), 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) [2023-11-06 22:20:10,142 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 173.0) internal successors, (865), 5 states have internal predecessors, (865), 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) [2023-11-06 22:20:10,143 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 173.0) internal successors, (865), 5 states have internal predecessors, (865), 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) [2023-11-06 22:20:10,143 INFO L175 Difference]: Start difference. First operand has 42 places, 33 transitions, 179 flow. Second operand 4 states and 429 transitions. [2023-11-06 22:20:10,143 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 63 transitions, 431 flow [2023-11-06 22:20:10,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 63 transitions, 420 flow, removed 3 selfloop flow, removed 1 redundant places. [2023-11-06 22:20:10,157 INFO L231 Difference]: Finished difference. Result has 46 places, 33 transitions, 193 flow [2023-11-06 22:20:10,157 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=171, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=193, PETRI_PLACES=46, PETRI_TRANSITIONS=33} [2023-11-06 22:20:10,160 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 11 predicate places. [2023-11-06 22:20:10,160 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 33 transitions, 193 flow [2023-11-06 22:20:10,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 99.0) internal successors, (396), 4 states have internal predecessors, (396), 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) [2023-11-06 22:20:10,161 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:20:10,161 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:20:10,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:20:10,162 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-06 22:20:10,162 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:20:10,162 INFO L85 PathProgramCache]: Analyzing trace with hash -692602076, now seen corresponding path program 1 times [2023-11-06 22:20:10,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:20:10,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256584600] [2023-11-06 22:20:10,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:20:10,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:20:10,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:20:10,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:20:10,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:20:10,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256584600] [2023-11-06 22:20:10,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256584600] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:20:10,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:20:10,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:20:10,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259032331] [2023-11-06 22:20:10,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:20:10,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:20:10,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:20:10,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:20:10,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:20:10,385 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 173 [2023-11-06 22:20:10,387 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 33 transitions, 193 flow. Second operand has 4 states, 4 states have (on average 99.25) internal successors, (397), 4 states have internal predecessors, (397), 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) [2023-11-06 22:20:10,388 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:20:10,388 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 173 [2023-11-06 22:20:10,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:20:10,868 INFO L124 PetriNetUnfolderBase]: 1704/2670 cut-off events. [2023-11-06 22:20:10,868 INFO L125 PetriNetUnfolderBase]: For 5271/5317 co-relation queries the response was YES. [2023-11-06 22:20:10,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8096 conditions, 2670 events. 1704/2670 cut-off events. For 5271/5317 co-relation queries the response was YES. Maximal size of possible extension queue 229. Compared 15490 event pairs, 562 based on Foata normal form. 93/2757 useless extension candidates. Maximal degree in co-relation 8076. Up to 1068 conditions per place. [2023-11-06 22:20:10,886 INFO L140 encePairwiseOnDemand]: 169/173 looper letters, 31 selfloop transitions, 5 changer transitions 14/54 dead transitions. [2023-11-06 22:20:10,886 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 54 transitions, 417 flow [2023-11-06 22:20:10,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:20:10,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 22:20:10,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 419 transitions. [2023-11-06 22:20:10,889 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6054913294797688 [2023-11-06 22:20:10,890 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 419 transitions. [2023-11-06 22:20:10,890 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 419 transitions. [2023-11-06 22:20:10,890 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:20:10,891 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 419 transitions. [2023-11-06 22:20:10,892 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 104.75) internal successors, (419), 4 states have internal predecessors, (419), 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) [2023-11-06 22:20:10,895 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 173.0) internal successors, (865), 5 states have internal predecessors, (865), 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) [2023-11-06 22:20:10,896 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 173.0) internal successors, (865), 5 states have internal predecessors, (865), 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) [2023-11-06 22:20:10,896 INFO L175 Difference]: Start difference. First operand has 46 places, 33 transitions, 193 flow. Second operand 4 states and 419 transitions. [2023-11-06 22:20:10,896 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 54 transitions, 417 flow [2023-11-06 22:20:10,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 54 transitions, 407 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:20:10,908 INFO L231 Difference]: Finished difference. Result has 49 places, 31 transitions, 191 flow [2023-11-06 22:20:10,908 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=191, PETRI_PLACES=49, PETRI_TRANSITIONS=31} [2023-11-06 22:20:10,912 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 14 predicate places. [2023-11-06 22:20:10,912 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 31 transitions, 191 flow [2023-11-06 22:20:10,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 99.25) internal successors, (397), 4 states have internal predecessors, (397), 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) [2023-11-06 22:20:10,913 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:20:10,913 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:20:10,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 22:20:10,914 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-06 22:20:10,914 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:20:10,914 INFO L85 PathProgramCache]: Analyzing trace with hash 525625750, now seen corresponding path program 1 times [2023-11-06 22:20:10,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:20:10,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609200395] [2023-11-06 22:20:10,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:20:10,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:20:10,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:20:11,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:20:11,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:20:11,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609200395] [2023-11-06 22:20:11,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609200395] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:20:11,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:20:11,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:20:11,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255323409] [2023-11-06 22:20:11,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:20:11,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:20:11,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:20:11,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:20:11,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:20:11,175 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 173 [2023-11-06 22:20:11,178 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 31 transitions, 191 flow. Second operand has 4 states, 4 states have (on average 95.25) internal successors, (381), 4 states have internal predecessors, (381), 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) [2023-11-06 22:20:11,179 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:20:11,179 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 173 [2023-11-06 22:20:11,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:20:11,492 INFO L124 PetriNetUnfolderBase]: 956/1663 cut-off events. [2023-11-06 22:20:11,493 INFO L125 PetriNetUnfolderBase]: For 3301/3355 co-relation queries the response was YES. [2023-11-06 22:20:11,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5056 conditions, 1663 events. 956/1663 cut-off events. For 3301/3355 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 10316 event pairs, 598 based on Foata normal form. 38/1673 useless extension candidates. Maximal degree in co-relation 5034. Up to 1359 conditions per place. [2023-11-06 22:20:11,506 INFO L140 encePairwiseOnDemand]: 170/173 looper letters, 30 selfloop transitions, 4 changer transitions 1/40 dead transitions. [2023-11-06 22:20:11,506 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 40 transitions, 308 flow [2023-11-06 22:20:11,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:20:11,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:20:11,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 304 transitions. [2023-11-06 22:20:11,509 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5857418111753372 [2023-11-06 22:20:11,509 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 304 transitions. [2023-11-06 22:20:11,509 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 304 transitions. [2023-11-06 22:20:11,509 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:20:11,510 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 304 transitions. [2023-11-06 22:20:11,511 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 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) [2023-11-06 22:20:11,513 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 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) [2023-11-06 22:20:11,514 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 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) [2023-11-06 22:20:11,515 INFO L175 Difference]: Start difference. First operand has 49 places, 31 transitions, 191 flow. Second operand 3 states and 304 transitions. [2023-11-06 22:20:11,516 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 40 transitions, 308 flow [2023-11-06 22:20:11,522 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 40 transitions, 295 flow, removed 1 selfloop flow, removed 3 redundant places. [2023-11-06 22:20:11,524 INFO L231 Difference]: Finished difference. Result has 49 places, 31 transitions, 193 flow [2023-11-06 22:20:11,524 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=179, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=193, PETRI_PLACES=49, PETRI_TRANSITIONS=31} [2023-11-06 22:20:11,525 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 14 predicate places. [2023-11-06 22:20:11,525 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 31 transitions, 193 flow [2023-11-06 22:20:11,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 95.25) internal successors, (381), 4 states have internal predecessors, (381), 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) [2023-11-06 22:20:11,526 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:20:11,526 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:20:11,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 22:20:11,527 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-06 22:20:11,528 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:20:11,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1611715132, now seen corresponding path program 1 times [2023-11-06 22:20:11,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:20:11,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044051156] [2023-11-06 22:20:11,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:20:11,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:20:11,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:20:11,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:20:11,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:20:11,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044051156] [2023-11-06 22:20:11,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044051156] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:20:11,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:20:11,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:20:11,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749922914] [2023-11-06 22:20:11,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:20:11,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:20:11,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:20:11,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:20:11,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:20:11,781 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 173 [2023-11-06 22:20:11,782 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 31 transitions, 193 flow. Second operand has 5 states, 5 states have (on average 92.8) internal successors, (464), 5 states have internal predecessors, (464), 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) [2023-11-06 22:20:11,783 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:20:11,783 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 173 [2023-11-06 22:20:11,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:20:12,238 INFO L124 PetriNetUnfolderBase]: 1546/2490 cut-off events. [2023-11-06 22:20:12,238 INFO L125 PetriNetUnfolderBase]: For 5802/5875 co-relation queries the response was YES. [2023-11-06 22:20:12,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7028 conditions, 2490 events. 1546/2490 cut-off events. For 5802/5875 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 15063 event pairs, 486 based on Foata normal form. 99/2568 useless extension candidates. Maximal degree in co-relation 7006. Up to 1260 conditions per place. [2023-11-06 22:20:12,254 INFO L140 encePairwiseOnDemand]: 169/173 looper letters, 23 selfloop transitions, 3 changer transitions 20/49 dead transitions. [2023-11-06 22:20:12,255 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 49 transitions, 366 flow [2023-11-06 22:20:12,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:20:12,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 22:20:12,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 395 transitions. [2023-11-06 22:20:12,258 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5708092485549133 [2023-11-06 22:20:12,259 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 395 transitions. [2023-11-06 22:20:12,259 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 395 transitions. [2023-11-06 22:20:12,260 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:20:12,260 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 395 transitions. [2023-11-06 22:20:12,262 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 98.75) internal successors, (395), 4 states have internal predecessors, (395), 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) [2023-11-06 22:20:12,264 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 173.0) internal successors, (865), 5 states have internal predecessors, (865), 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) [2023-11-06 22:20:12,265 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 173.0) internal successors, (865), 5 states have internal predecessors, (865), 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) [2023-11-06 22:20:12,265 INFO L175 Difference]: Start difference. First operand has 49 places, 31 transitions, 193 flow. Second operand 4 states and 395 transitions. [2023-11-06 22:20:12,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 49 transitions, 366 flow [2023-11-06 22:20:12,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 49 transitions, 356 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:20:12,274 INFO L231 Difference]: Finished difference. Result has 52 places, 22 transitions, 124 flow [2023-11-06 22:20:12,274 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=124, PETRI_PLACES=52, PETRI_TRANSITIONS=22} [2023-11-06 22:20:12,275 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 17 predicate places. [2023-11-06 22:20:12,276 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 22 transitions, 124 flow [2023-11-06 22:20:12,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 92.8) internal successors, (464), 5 states have internal predecessors, (464), 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) [2023-11-06 22:20:12,276 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:20:12,277 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:20:12,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-06 22:20:12,277 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-06 22:20:12,278 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:20:12,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1679869018, now seen corresponding path program 1 times [2023-11-06 22:20:12,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:20:12,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829294654] [2023-11-06 22:20:12,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:20:12,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:20:12,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:20:12,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:20:12,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:20:12,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829294654] [2023-11-06 22:20:12,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829294654] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:20:12,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:20:12,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:20:12,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944621520] [2023-11-06 22:20:12,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:20:12,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:20:12,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:20:12,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:20:12,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:20:12,467 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 173 [2023-11-06 22:20:12,468 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 22 transitions, 124 flow. Second operand has 4 states, 4 states have (on average 99.5) internal successors, (398), 4 states have internal predecessors, (398), 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) [2023-11-06 22:20:12,469 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:20:12,469 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 173 [2023-11-06 22:20:12,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:20:12,540 INFO L124 PetriNetUnfolderBase]: 130/221 cut-off events. [2023-11-06 22:20:12,541 INFO L125 PetriNetUnfolderBase]: For 1619/1619 co-relation queries the response was YES. [2023-11-06 22:20:12,542 INFO L83 FinitePrefix]: Finished finitePrefix Result has 628 conditions, 221 events. 130/221 cut-off events. For 1619/1619 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 624 event pairs, 66 based on Foata normal form. 24/233 useless extension candidates. Maximal degree in co-relation 604. Up to 119 conditions per place. [2023-11-06 22:20:12,542 INFO L140 encePairwiseOnDemand]: 170/173 looper letters, 0 selfloop transitions, 0 changer transitions 25/25 dead transitions. [2023-11-06 22:20:12,543 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 25 transitions, 152 flow [2023-11-06 22:20:12,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:20:12,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 22:20:12,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 408 transitions. [2023-11-06 22:20:12,545 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5895953757225434 [2023-11-06 22:20:12,546 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 408 transitions. [2023-11-06 22:20:12,546 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 408 transitions. [2023-11-06 22:20:12,547 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:20:12,547 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 408 transitions. [2023-11-06 22:20:12,548 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 102.0) internal successors, (408), 4 states have internal predecessors, (408), 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) [2023-11-06 22:20:12,551 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 173.0) internal successors, (865), 5 states have internal predecessors, (865), 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) [2023-11-06 22:20:12,551 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 173.0) internal successors, (865), 5 states have internal predecessors, (865), 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) [2023-11-06 22:20:12,552 INFO L175 Difference]: Start difference. First operand has 52 places, 22 transitions, 124 flow. Second operand 4 states and 408 transitions. [2023-11-06 22:20:12,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 25 transitions, 152 flow [2023-11-06 22:20:12,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 25 transitions, 102 flow, removed 6 selfloop flow, removed 20 redundant places. [2023-11-06 22:20:12,554 INFO L231 Difference]: Finished difference. Result has 33 places, 0 transitions, 0 flow [2023-11-06 22:20:12,554 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=33, PETRI_TRANSITIONS=0} [2023-11-06 22:20:12,555 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -2 predicate places. [2023-11-06 22:20:12,555 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 0 transitions, 0 flow [2023-11-06 22:20:12,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 99.5) internal successors, (398), 4 states have internal predecessors, (398), 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) [2023-11-06 22:20:12,558 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2023-11-06 22:20:12,559 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2023-11-06 22:20:12,559 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-11-06 22:20:12,560 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2023-11-06 22:20:12,560 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-11-06 22:20:12,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-06 22:20:12,561 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:20:12,564 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 22:20:12,565 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:20:12,569 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:20:12 BasicIcfg [2023-11-06 22:20:12,569 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:20:12,570 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:20:12,570 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:20:12,570 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:20:12,571 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:20:02" (3/4) ... [2023-11-06 22:20:12,573 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 22:20:12,579 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-06 22:20:12,579 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-06 22:20:12,579 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-06 22:20:12,579 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-11-06 22:20:12,585 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2023-11-06 22:20:12,586 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-06 22:20:12,586 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 22:20:12,586 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 22:20:12,643 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bd604c-271c-4206-87e9-56d65079d972/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:20:12,644 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bd604c-271c-4206-87e9-56d65079d972/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 22:20:12,644 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:20:12,645 INFO L158 Benchmark]: Toolchain (without parser) took 12110.98ms. Allocated memory was 142.6MB in the beginning and 283.1MB in the end (delta: 140.5MB). Free memory was 94.9MB in the beginning and 160.6MB in the end (delta: -65.7MB). Peak memory consumption was 77.6MB. Max. memory is 16.1GB. [2023-11-06 22:20:12,645 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 142.6MB. Free memory is still 117.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:20:12,646 INFO L158 Benchmark]: CACSL2BoogieTranslator took 738.29ms. Allocated memory is still 142.6MB. Free memory was 94.9MB in the beginning and 74.3MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-06 22:20:12,646 INFO L158 Benchmark]: Boogie Procedure Inliner took 93.22ms. Allocated memory is still 142.6MB. Free memory was 74.3MB in the beginning and 72.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:20:12,647 INFO L158 Benchmark]: Boogie Preprocessor took 57.66ms. Allocated memory is still 142.6MB. Free memory was 72.3MB in the beginning and 70.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:20:12,647 INFO L158 Benchmark]: RCFGBuilder took 799.26ms. Allocated memory was 142.6MB in the beginning and 195.0MB in the end (delta: 52.4MB). Free memory was 70.6MB in the beginning and 159.8MB in the end (delta: -89.2MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. [2023-11-06 22:20:12,648 INFO L158 Benchmark]: TraceAbstraction took 10335.22ms. Allocated memory was 195.0MB in the beginning and 283.1MB in the end (delta: 88.1MB). Free memory was 158.9MB in the beginning and 163.8MB in the end (delta: -4.9MB). Peak memory consumption was 83.1MB. Max. memory is 16.1GB. [2023-11-06 22:20:12,648 INFO L158 Benchmark]: Witness Printer took 74.29ms. Allocated memory is still 283.1MB. Free memory was 163.8MB in the beginning and 160.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:20:12,651 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 142.6MB. Free memory is still 117.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 738.29ms. Allocated memory is still 142.6MB. Free memory was 94.9MB in the beginning and 74.3MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 93.22ms. Allocated memory is still 142.6MB. Free memory was 74.3MB in the beginning and 72.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.66ms. Allocated memory is still 142.6MB. Free memory was 72.3MB in the beginning and 70.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 799.26ms. Allocated memory was 142.6MB in the beginning and 195.0MB in the end (delta: 52.4MB). Free memory was 70.6MB in the beginning and 159.8MB in the end (delta: -89.2MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. * TraceAbstraction took 10335.22ms. Allocated memory was 195.0MB in the beginning and 283.1MB in the end (delta: 88.1MB). Free memory was 158.9MB in the beginning and 163.8MB in the end (delta: -4.9MB). Peak memory consumption was 83.1MB. Max. memory is 16.1GB. * Witness Printer took 74.29ms. Allocated memory is still 283.1MB. Free memory was 163.8MB in the beginning and 160.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.5s, 98 PlacesBefore, 35 PlacesAfterwards, 86 TransitionsBefore, 22 TransitionsAfterwards, 1752 CoEnabledTransitionPairs, 6 FixpointIterations, 22 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 66 TotalNumberOfCompositions, 3442 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1809, independent: 1690, independent conditional: 0, independent unconditional: 1690, dependent: 119, dependent conditional: 0, dependent unconditional: 119, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 930, independent: 896, independent conditional: 0, independent unconditional: 896, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1809, independent: 794, independent conditional: 0, independent unconditional: 794, dependent: 85, dependent conditional: 0, dependent unconditional: 85, unknown: 930, unknown conditional: 0, unknown unconditional: 930] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 64, Positive conditional cache size: 0, Positive unconditional cache size: 64, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 138 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 10.1s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 284 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 209 mSDsluCounter, 65 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 49 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 418 IncrementalHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 49 mSolverCounterUnsat, 45 mSDtfsCounter, 418 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=193occurred in iteration=5, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 118 NumberOfCodeBlocks, 118 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 109 ConstructedInterpolants, 0 QuantifiedInterpolants, 509 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-06 22:20:12,681 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bd604c-271c-4206-87e9-56d65079d972/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE