./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe030_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59c743a-6900-49da-9299-e3a84e54bd8d/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59c743a-6900-49da-9299-e3a84e54bd8d/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59c743a-6900-49da-9299-e3a84e54bd8d/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59c743a-6900-49da-9299-e3a84e54bd8d/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe030_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59c743a-6900-49da-9299-e3a84e54bd8d/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59c743a-6900-49da-9299-e3a84e54bd8d/bin/utaipan-verify-DbMuA5NWw2 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1730fa7f98e17ee8b58920ef3daf63ee88225f1b42924032a532b5f5db33fba5 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 11:21:27,340 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 11:21:27,456 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59c743a-6900-49da-9299-e3a84e54bd8d/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-02 11:21:27,465 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 11:21:27,468 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 11:21:27,511 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 11:21:27,514 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 11:21:27,515 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 11:21:27,516 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 11:21:27,517 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 11:21:27,518 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 11:21:27,520 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 11:21:27,520 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 11:21:27,521 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 11:21:27,523 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 11:21:27,524 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 11:21:27,525 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 11:21:27,525 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 11:21:27,526 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 11:21:27,526 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 11:21:27,531 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 11:21:27,531 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 11:21:27,532 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 11:21:27,533 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 11:21:27,533 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 11:21:27,533 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 11:21:27,534 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 11:21:27,534 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 11:21:27,534 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 11:21:27,537 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 11:21:27,537 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 11:21:27,538 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 11:21:27,553 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 11:21:27,553 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 11:21:27,555 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 11:21:27,556 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 11:21:27,556 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 11:21:27,557 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 11:21:27,558 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 11:21:27,558 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 11:21:27,558 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 11:21:27,559 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 11:21:27,559 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 11:21:27,561 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 11:21:27,561 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 11:21:27,562 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 11:21:27,562 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 11:21:27,563 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_d59c743a-6900-49da-9299-e3a84e54bd8d/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59c743a-6900-49da-9299-e3a84e54bd8d/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1730fa7f98e17ee8b58920ef3daf63ee88225f1b42924032a532b5f5db33fba5 [2024-11-02 11:21:27,946 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 11:21:27,981 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 11:21:27,985 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 11:21:27,988 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 11:21:27,989 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 11:21:27,990 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59c743a-6900-49da-9299-e3a84e54bd8d/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/pthread-wmm/safe030_tso.i Unable to find full path for "g++" [2024-11-02 11:21:30,359 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 11:21:30,750 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 11:21:30,751 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59c743a-6900-49da-9299-e3a84e54bd8d/sv-benchmarks/c/pthread-wmm/safe030_tso.i [2024-11-02 11:21:30,767 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59c743a-6900-49da-9299-e3a84e54bd8d/bin/utaipan-verify-DbMuA5NWw2/data/20f6e73f0/35eedac5066741cbbd1da03013332183/FLAG888917c1b [2024-11-02 11:21:30,785 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59c743a-6900-49da-9299-e3a84e54bd8d/bin/utaipan-verify-DbMuA5NWw2/data/20f6e73f0/35eedac5066741cbbd1da03013332183 [2024-11-02 11:21:30,789 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 11:21:30,791 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 11:21:30,792 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 11:21:30,793 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 11:21:30,800 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 11:21:30,801 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:21:30" (1/1) ... [2024-11-02 11:21:30,803 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@659fb6cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:21:30, skipping insertion in model container [2024-11-02 11:21:30,803 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:21:30" (1/1) ... [2024-11-02 11:21:30,879 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 11:21:31,122 WARN L251 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_d59c743a-6900-49da-9299-e3a84e54bd8d/sv-benchmarks/c/pthread-wmm/safe030_tso.i[945,958] [2024-11-02 11:21:31,462 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 11:21:31,477 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 11:21:31,493 WARN L251 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_d59c743a-6900-49da-9299-e3a84e54bd8d/sv-benchmarks/c/pthread-wmm/safe030_tso.i[945,958] [2024-11-02 11:21:31,556 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 11:21:31,606 INFO L204 MainTranslator]: Completed translation [2024-11-02 11:21:31,607 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:21:31 WrapperNode [2024-11-02 11:21:31,607 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 11:21:31,609 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 11:21:31,609 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 11:21:31,609 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 11:21:31,618 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:21:31" (1/1) ... [2024-11-02 11:21:31,638 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:21:31" (1/1) ... [2024-11-02 11:21:31,665 INFO L138 Inliner]: procedures = 175, calls = 41, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 56 [2024-11-02 11:21:31,667 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 11:21:31,668 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 11:21:31,668 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 11:21:31,668 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 11:21:31,678 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:21:31" (1/1) ... [2024-11-02 11:21:31,678 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:21:31" (1/1) ... [2024-11-02 11:21:31,682 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:21:31" (1/1) ... [2024-11-02 11:21:31,683 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:21:31" (1/1) ... [2024-11-02 11:21:31,687 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:21:31" (1/1) ... [2024-11-02 11:21:31,692 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:21:31" (1/1) ... [2024-11-02 11:21:31,696 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:21:31" (1/1) ... [2024-11-02 11:21:31,697 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:21:31" (1/1) ... [2024-11-02 11:21:31,704 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 11:21:31,705 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 11:21:31,708 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 11:21:31,709 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 11:21:31,710 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:21:31" (1/1) ... [2024-11-02 11:21:31,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 11:21:31,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59c743a-6900-49da-9299-e3a84e54bd8d/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:21:31,756 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59c743a-6900-49da-9299-e3a84e54bd8d/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 11:21:31,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59c743a-6900-49da-9299-e3a84e54bd8d/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 11:21:31,801 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-02 11:21:31,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 11:21:31,802 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-02 11:21:31,804 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-02 11:21:31,804 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-02 11:21:31,804 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-02 11:21:31,804 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-02 11:21:31,805 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-02 11:21:31,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 11:21:31,805 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-02 11:21:31,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 11:21:31,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 11:21:31,808 WARN L207 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-02 11:21:32,008 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 11:21:32,012 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 11:21:32,262 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-02 11:21:32,262 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 11:21:32,409 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 11:21:32,409 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-02 11:21:32,410 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:21:32 BoogieIcfgContainer [2024-11-02 11:21:32,410 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 11:21:32,414 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 11:21:32,416 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 11:21:32,421 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 11:21:32,421 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 11:21:30" (1/3) ... [2024-11-02 11:21:32,422 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c115429 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:21:32, skipping insertion in model container [2024-11-02 11:21:32,423 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:21:31" (2/3) ... [2024-11-02 11:21:32,425 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c115429 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:21:32, skipping insertion in model container [2024-11-02 11:21:32,426 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:21:32" (3/3) ... [2024-11-02 11:21:32,428 INFO L112 eAbstractionObserver]: Analyzing ICFG safe030_tso.i [2024-11-02 11:21:32,453 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 11:21:32,453 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 11:21:32,453 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-02 11:21:32,579 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-02 11:21:32,667 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 47 places, 38 transitions, 88 flow [2024-11-02 11:21:32,980 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 3201 states, 3200 states have (on average 3.43) internal successors, (10976), 3200 states have internal predecessors, (10976), 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) [2024-11-02 11:21:33,022 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 11:21:33,030 INFO L333 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, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@2174a41f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 11:21:33,031 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-02 11:21:33,047 INFO L276 IsEmpty]: Start isEmpty. Operand has 3201 states, 3200 states have (on average 3.43) internal successors, (10976), 3200 states have internal predecessors, (10976), 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) [2024-11-02 11:21:33,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-02 11:21:33,077 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:21:33,077 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:21:33,079 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-02 11:21:33,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:21:33,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1121528242, now seen corresponding path program 1 times [2024-11-02 11:21:33,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:21:33,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161719032] [2024-11-02 11:21:33,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:21:33,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:21:33,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:21:33,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 11:21:33,913 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:21:33,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161719032] [2024-11-02 11:21:33,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161719032] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:21:33,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:21:33,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-02 11:21:33,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664735093] [2024-11-02 11:21:33,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:21:33,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-02 11:21:33,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:21:33,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-02 11:21:33,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-02 11:21:33,972 INFO L87 Difference]: Start difference. First operand has 3201 states, 3200 states have (on average 3.43) internal successors, (10976), 3200 states have internal predecessors, (10976), 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) Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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) [2024-11-02 11:21:34,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:21:34,407 INFO L93 Difference]: Finished difference Result 5745 states and 19672 transitions. [2024-11-02 11:21:34,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-02 11:21:34,412 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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) Word has length 14 [2024-11-02 11:21:34,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:21:34,487 INFO L225 Difference]: With dead ends: 5745 [2024-11-02 11:21:34,488 INFO L226 Difference]: Without dead ends: 3537 [2024-11-02 11:21:34,501 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-02 11:21:34,507 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 85 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 11:21:34,508 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 155 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 11:21:34,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3537 states. [2024-11-02 11:21:34,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3537 to 3105. [2024-11-02 11:21:34,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3105 states, 3104 states have (on average 3.28125) internal successors, (10185), 3104 states have internal predecessors, (10185), 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) [2024-11-02 11:21:34,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3105 states to 3105 states and 10185 transitions. [2024-11-02 11:21:34,864 INFO L78 Accepts]: Start accepts. Automaton has 3105 states and 10185 transitions. Word has length 14 [2024-11-02 11:21:34,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:21:34,866 INFO L471 AbstractCegarLoop]: Abstraction has 3105 states and 10185 transitions. [2024-11-02 11:21:34,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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) [2024-11-02 11:21:34,866 INFO L276 IsEmpty]: Start isEmpty. Operand 3105 states and 10185 transitions. [2024-11-02 11:21:34,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-02 11:21:34,881 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:21:34,881 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:21:34,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 11:21:34,883 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-02 11:21:34,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:21:34,884 INFO L85 PathProgramCache]: Analyzing trace with hash -999971725, now seen corresponding path program 1 times [2024-11-02 11:21:34,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:21:34,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534548278] [2024-11-02 11:21:34,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:21:34,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:21:34,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:21:35,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 11:21:35,225 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:21:35,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534548278] [2024-11-02 11:21:35,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534548278] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:21:35,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:21:35,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-02 11:21:35,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44019912] [2024-11-02 11:21:35,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:21:35,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 11:21:35,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:21:35,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 11:21:35,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-02 11:21:35,229 INFO L87 Difference]: Start difference. First operand 3105 states and 10185 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 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) [2024-11-02 11:21:35,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:21:35,630 INFO L93 Difference]: Finished difference Result 4701 states and 15474 transitions. [2024-11-02 11:21:35,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-02 11:21:35,638 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 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) Word has length 16 [2024-11-02 11:21:35,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:21:35,676 INFO L225 Difference]: With dead ends: 4701 [2024-11-02 11:21:35,677 INFO L226 Difference]: Without dead ends: 3273 [2024-11-02 11:21:35,684 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2024-11-02 11:21:35,685 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 124 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 11:21:35,685 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 186 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 11:21:35,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3273 states. [2024-11-02 11:21:35,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3273 to 2865. [2024-11-02 11:21:35,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2865 states, 2864 states have (on average 3.252444134078212) internal successors, (9315), 2864 states have internal predecessors, (9315), 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) [2024-11-02 11:21:35,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2865 states to 2865 states and 9315 transitions. [2024-11-02 11:21:35,824 INFO L78 Accepts]: Start accepts. Automaton has 2865 states and 9315 transitions. Word has length 16 [2024-11-02 11:21:35,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:21:35,824 INFO L471 AbstractCegarLoop]: Abstraction has 2865 states and 9315 transitions. [2024-11-02 11:21:35,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 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) [2024-11-02 11:21:35,825 INFO L276 IsEmpty]: Start isEmpty. Operand 2865 states and 9315 transitions. [2024-11-02 11:21:35,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-02 11:21:35,831 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:21:35,832 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:21:35,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-02 11:21:35,832 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-02 11:21:35,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:21:35,833 INFO L85 PathProgramCache]: Analyzing trace with hash 15286515, now seen corresponding path program 1 times [2024-11-02 11:21:35,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:21:35,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741389913] [2024-11-02 11:21:35,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:21:35,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:21:35,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:21:36,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 11:21:36,147 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:21:36,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741389913] [2024-11-02 11:21:36,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741389913] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:21:36,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:21:36,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-02 11:21:36,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075351060] [2024-11-02 11:21:36,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:21:36,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 11:21:36,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:21:36,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 11:21:36,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-02 11:21:36,153 INFO L87 Difference]: Start difference. First operand 2865 states and 9315 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 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) [2024-11-02 11:21:36,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:21:36,522 INFO L93 Difference]: Finished difference Result 4189 states and 13680 transitions. [2024-11-02 11:21:36,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-02 11:21:36,526 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 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) Word has length 16 [2024-11-02 11:21:36,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:21:36,561 INFO L225 Difference]: With dead ends: 4189 [2024-11-02 11:21:36,561 INFO L226 Difference]: Without dead ends: 3089 [2024-11-02 11:21:36,567 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2024-11-02 11:21:36,568 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 124 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 11:21:36,571 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 174 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 11:21:36,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3089 states. [2024-11-02 11:21:36,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3089 to 2705. [2024-11-02 11:21:36,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2705 states, 2704 states have (on average 3.2296597633136095) internal successors, (8733), 2704 states have internal predecessors, (8733), 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) [2024-11-02 11:21:36,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2705 states to 2705 states and 8733 transitions. [2024-11-02 11:21:36,724 INFO L78 Accepts]: Start accepts. Automaton has 2705 states and 8733 transitions. Word has length 16 [2024-11-02 11:21:36,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:21:36,725 INFO L471 AbstractCegarLoop]: Abstraction has 2705 states and 8733 transitions. [2024-11-02 11:21:36,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 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) [2024-11-02 11:21:36,729 INFO L276 IsEmpty]: Start isEmpty. Operand 2705 states and 8733 transitions. [2024-11-02 11:21:36,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-02 11:21:36,739 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:21:36,739 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:21:36,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-02 11:21:36,740 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-02 11:21:36,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:21:36,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1363283828, now seen corresponding path program 1 times [2024-11-02 11:21:36,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:21:36,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515548393] [2024-11-02 11:21:36,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:21:36,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:21:36,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:21:36,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 11:21:36,981 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:21:36,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515548393] [2024-11-02 11:21:36,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515548393] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:21:36,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:21:36,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-02 11:21:36,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402779306] [2024-11-02 11:21:36,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:21:36,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 11:21:36,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:21:36,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 11:21:36,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-02 11:21:36,985 INFO L87 Difference]: Start difference. First operand 2705 states and 8733 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 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) [2024-11-02 11:21:37,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:21:37,285 INFO L93 Difference]: Finished difference Result 3733 states and 12084 transitions. [2024-11-02 11:21:37,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-02 11:21:37,286 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 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) Word has length 18 [2024-11-02 11:21:37,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:21:37,320 INFO L225 Difference]: With dead ends: 3733 [2024-11-02 11:21:37,320 INFO L226 Difference]: Without dead ends: 2985 [2024-11-02 11:21:37,324 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2024-11-02 11:21:37,330 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 96 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 11:21:37,331 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 158 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 11:21:37,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2985 states. [2024-11-02 11:21:37,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2985 to 2617. [2024-11-02 11:21:37,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2617 states, 2616 states have (on average 3.2175076452599387) internal successors, (8417), 2616 states have internal predecessors, (8417), 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) [2024-11-02 11:21:37,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2617 states to 2617 states and 8417 transitions. [2024-11-02 11:21:37,445 INFO L78 Accepts]: Start accepts. Automaton has 2617 states and 8417 transitions. Word has length 18 [2024-11-02 11:21:37,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:21:37,445 INFO L471 AbstractCegarLoop]: Abstraction has 2617 states and 8417 transitions. [2024-11-02 11:21:37,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 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) [2024-11-02 11:21:37,446 INFO L276 IsEmpty]: Start isEmpty. Operand 2617 states and 8417 transitions. [2024-11-02 11:21:37,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-02 11:21:37,452 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:21:37,453 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:21:37,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-02 11:21:37,453 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-02 11:21:37,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:21:37,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1816199724, now seen corresponding path program 1 times [2024-11-02 11:21:37,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:21:37,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609202840] [2024-11-02 11:21:37,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:21:37,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:21:37,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:21:37,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 11:21:37,666 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:21:37,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609202840] [2024-11-02 11:21:37,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609202840] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:21:37,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:21:37,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-02 11:21:37,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210214301] [2024-11-02 11:21:37,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:21:37,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 11:21:37,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:21:37,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 11:21:37,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-02 11:21:37,669 INFO L87 Difference]: Start difference. First operand 2617 states and 8417 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 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) [2024-11-02 11:21:37,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:21:37,984 INFO L93 Difference]: Finished difference Result 4261 states and 13626 transitions. [2024-11-02 11:21:37,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-02 11:21:37,984 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 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) Word has length 19 [2024-11-02 11:21:37,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:21:38,014 INFO L225 Difference]: With dead ends: 4261 [2024-11-02 11:21:38,014 INFO L226 Difference]: Without dead ends: 3169 [2024-11-02 11:21:38,018 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2024-11-02 11:21:38,019 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 92 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 11:21:38,019 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 197 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 11:21:38,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3169 states. [2024-11-02 11:21:38,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3169 to 2409. [2024-11-02 11:21:38,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2409 states, 2408 states have (on average 3.167358803986711) internal successors, (7627), 2408 states have internal predecessors, (7627), 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) [2024-11-02 11:21:38,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2409 states to 2409 states and 7627 transitions. [2024-11-02 11:21:38,121 INFO L78 Accepts]: Start accepts. Automaton has 2409 states and 7627 transitions. Word has length 19 [2024-11-02 11:21:38,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:21:38,122 INFO L471 AbstractCegarLoop]: Abstraction has 2409 states and 7627 transitions. [2024-11-02 11:21:38,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 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) [2024-11-02 11:21:38,123 INFO L276 IsEmpty]: Start isEmpty. Operand 2409 states and 7627 transitions. [2024-11-02 11:21:38,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-02 11:21:38,128 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:21:38,128 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:21:38,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-02 11:21:38,129 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-02 11:21:38,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:21:38,131 INFO L85 PathProgramCache]: Analyzing trace with hash 976953434, now seen corresponding path program 1 times [2024-11-02 11:21:38,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:21:38,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707312678] [2024-11-02 11:21:38,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:21:38,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:21:38,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:21:38,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 11:21:38,349 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:21:38,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707312678] [2024-11-02 11:21:38,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707312678] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:21:38,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:21:38,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-02 11:21:38,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308340344] [2024-11-02 11:21:38,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:21:38,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 11:21:38,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:21:38,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 11:21:38,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-02 11:21:38,351 INFO L87 Difference]: Start difference. First operand 2409 states and 7627 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 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) [2024-11-02 11:21:38,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:21:38,646 INFO L93 Difference]: Finished difference Result 4061 states and 12858 transitions. [2024-11-02 11:21:38,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-02 11:21:38,647 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 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) Word has length 19 [2024-11-02 11:21:38,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:21:38,683 INFO L225 Difference]: With dead ends: 4061 [2024-11-02 11:21:38,683 INFO L226 Difference]: Without dead ends: 2969 [2024-11-02 11:21:38,686 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2024-11-02 11:21:38,687 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 87 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 11:21:38,687 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 215 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 11:21:38,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2969 states. [2024-11-02 11:21:38,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2969 to 2209. [2024-11-02 11:21:38,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2209 states, 2208 states have (on average 3.1245471014492754) internal successors, (6899), 2208 states have internal predecessors, (6899), 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) [2024-11-02 11:21:38,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2209 states to 2209 states and 6899 transitions. [2024-11-02 11:21:38,796 INFO L78 Accepts]: Start accepts. Automaton has 2209 states and 6899 transitions. Word has length 19 [2024-11-02 11:21:38,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:21:38,797 INFO L471 AbstractCegarLoop]: Abstraction has 2209 states and 6899 transitions. [2024-11-02 11:21:38,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 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) [2024-11-02 11:21:38,798 INFO L276 IsEmpty]: Start isEmpty. Operand 2209 states and 6899 transitions. [2024-11-02 11:21:38,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-02 11:21:38,803 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:21:38,804 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:21:38,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-02 11:21:38,804 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-02 11:21:38,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:21:38,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1673650020, now seen corresponding path program 1 times [2024-11-02 11:21:38,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:21:38,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526088441] [2024-11-02 11:21:38,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:21:38,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:21:38,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:21:38,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 11:21:38,953 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:21:38,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526088441] [2024-11-02 11:21:38,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526088441] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:21:38,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:21:38,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-02 11:21:38,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661323277] [2024-11-02 11:21:38,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:21:38,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 11:21:38,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:21:38,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 11:21:38,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-02 11:21:38,955 INFO L87 Difference]: Start difference. First operand 2209 states and 6899 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 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) [2024-11-02 11:21:39,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:21:39,225 INFO L93 Difference]: Finished difference Result 3893 states and 12170 transitions. [2024-11-02 11:21:39,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-02 11:21:39,226 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 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) Word has length 19 [2024-11-02 11:21:39,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:21:39,244 INFO L225 Difference]: With dead ends: 3893 [2024-11-02 11:21:39,244 INFO L226 Difference]: Without dead ends: 2761 [2024-11-02 11:21:39,248 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2024-11-02 11:21:39,249 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 108 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 11:21:39,249 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 196 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 11:21:39,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2761 states. [2024-11-02 11:21:39,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2761 to 2009. [2024-11-02 11:21:39,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2009 states, 2008 states have (on average 3.0881474103585655) internal successors, (6201), 2008 states have internal predecessors, (6201), 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) [2024-11-02 11:21:39,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2009 states to 2009 states and 6201 transitions. [2024-11-02 11:21:39,375 INFO L78 Accepts]: Start accepts. Automaton has 2009 states and 6201 transitions. Word has length 19 [2024-11-02 11:21:39,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:21:39,376 INFO L471 AbstractCegarLoop]: Abstraction has 2009 states and 6201 transitions. [2024-11-02 11:21:39,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 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) [2024-11-02 11:21:39,376 INFO L276 IsEmpty]: Start isEmpty. Operand 2009 states and 6201 transitions. [2024-11-02 11:21:39,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-02 11:21:39,382 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:21:39,382 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:21:39,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-02 11:21:39,383 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-02 11:21:39,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:21:39,383 INFO L85 PathProgramCache]: Analyzing trace with hash -698465867, now seen corresponding path program 1 times [2024-11-02 11:21:39,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:21:39,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968749462] [2024-11-02 11:21:39,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:21:39,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:21:39,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:21:39,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 11:21:39,616 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:21:39,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968749462] [2024-11-02 11:21:39,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968749462] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:21:39,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:21:39,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 11:21:39,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268754821] [2024-11-02 11:21:39,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:21:39,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 11:21:39,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:21:39,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 11:21:39,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 11:21:39,621 INFO L87 Difference]: Start difference. First operand 2009 states and 6201 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 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) [2024-11-02 11:21:39,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:21:39,711 INFO L93 Difference]: Finished difference Result 2887 states and 8718 transitions. [2024-11-02 11:21:39,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 11:21:39,712 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 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) Word has length 20 [2024-11-02 11:21:39,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:21:39,726 INFO L225 Difference]: With dead ends: 2887 [2024-11-02 11:21:39,726 INFO L226 Difference]: Without dead ends: 1548 [2024-11-02 11:21:39,729 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-02 11:21:39,730 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 53 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 11:21:39,731 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 51 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 11:21:39,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1548 states. [2024-11-02 11:21:39,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1548 to 1548. [2024-11-02 11:21:39,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1548 states, 1547 states have (on average 2.909502262443439) internal successors, (4501), 1547 states have internal predecessors, (4501), 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) [2024-11-02 11:21:39,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1548 states to 1548 states and 4501 transitions. [2024-11-02 11:21:39,788 INFO L78 Accepts]: Start accepts. Automaton has 1548 states and 4501 transitions. Word has length 20 [2024-11-02 11:21:39,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:21:39,791 INFO L471 AbstractCegarLoop]: Abstraction has 1548 states and 4501 transitions. [2024-11-02 11:21:39,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 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) [2024-11-02 11:21:39,791 INFO L276 IsEmpty]: Start isEmpty. Operand 1548 states and 4501 transitions. [2024-11-02 11:21:39,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-02 11:21:39,795 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:21:39,796 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:21:39,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-02 11:21:39,796 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-02 11:21:39,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:21:39,797 INFO L85 PathProgramCache]: Analyzing trace with hash 245399158, now seen corresponding path program 1 times [2024-11-02 11:21:39,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:21:39,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472793721] [2024-11-02 11:21:39,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:21:39,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:21:39,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:21:39,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 11:21:39,959 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:21:39,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472793721] [2024-11-02 11:21:39,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472793721] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:21:39,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:21:39,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-02 11:21:39,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860885349] [2024-11-02 11:21:39,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:21:39,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-02 11:21:39,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:21:39,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-02 11:21:39,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-02 11:21:39,966 INFO L87 Difference]: Start difference. First operand 1548 states and 4501 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 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) [2024-11-02 11:21:40,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:21:40,081 INFO L93 Difference]: Finished difference Result 1832 states and 5233 transitions. [2024-11-02 11:21:40,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-02 11:21:40,081 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 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) Word has length 23 [2024-11-02 11:21:40,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:21:40,091 INFO L225 Difference]: With dead ends: 1832 [2024-11-02 11:21:40,092 INFO L226 Difference]: Without dead ends: 860 [2024-11-02 11:21:40,094 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-02 11:21:40,095 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 83 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 11:21:40,096 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 67 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 11:21:40,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 860 states. [2024-11-02 11:21:40,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 860 to 860. [2024-11-02 11:21:40,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 860 states, 859 states have (on average 2.679860302677532) internal successors, (2302), 859 states have internal predecessors, (2302), 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) [2024-11-02 11:21:40,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 860 states to 860 states and 2302 transitions. [2024-11-02 11:21:40,129 INFO L78 Accepts]: Start accepts. Automaton has 860 states and 2302 transitions. Word has length 23 [2024-11-02 11:21:40,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:21:40,130 INFO L471 AbstractCegarLoop]: Abstraction has 860 states and 2302 transitions. [2024-11-02 11:21:40,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 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) [2024-11-02 11:21:40,131 INFO L276 IsEmpty]: Start isEmpty. Operand 860 states and 2302 transitions. [2024-11-02 11:21:40,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-02 11:21:40,133 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:21:40,133 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:21:40,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-02 11:21:40,134 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-02 11:21:40,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:21:40,134 INFO L85 PathProgramCache]: Analyzing trace with hash 2069977567, now seen corresponding path program 1 times [2024-11-02 11:21:40,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:21:40,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451404817] [2024-11-02 11:21:40,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:21:40,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:21:40,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:21:40,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 11:21:40,310 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:21:40,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451404817] [2024-11-02 11:21:40,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451404817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:21:40,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:21:40,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-02 11:21:40,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208235527] [2024-11-02 11:21:40,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:21:40,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 11:21:40,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:21:40,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 11:21:40,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-02 11:21:40,312 INFO L87 Difference]: Start difference. First operand 860 states and 2302 transitions. Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 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) [2024-11-02 11:21:40,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:21:40,411 INFO L93 Difference]: Finished difference Result 860 states and 2302 transitions. [2024-11-02 11:21:40,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-02 11:21:40,412 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 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) Word has length 26 [2024-11-02 11:21:40,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:21:40,418 INFO L225 Difference]: With dead ends: 860 [2024-11-02 11:21:40,418 INFO L226 Difference]: Without dead ends: 0 [2024-11-02 11:21:40,420 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-11-02 11:21:40,421 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 104 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 11:21:40,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 30 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 11:21:40,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-02 11:21:40,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-02 11:21:40,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2024-11-02 11:21:40,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-02 11:21:40,428 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2024-11-02 11:21:40,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:21:40,429 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-02 11:21:40,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 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) [2024-11-02 11:21:40,429 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-02 11:21:40,429 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-02 11:21:40,432 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2024-11-02 11:21:40,433 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2024-11-02 11:21:40,433 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-11-02 11:21:40,433 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-11-02 11:21:40,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-02 11:21:40,437 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:21:40,440 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-02 11:21:40,441 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 11:21:40,444 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 11:21:40 BasicIcfg [2024-11-02 11:21:40,444 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 11:21:40,445 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-02 11:21:40,445 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-02 11:21:40,445 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-02 11:21:40,446 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:21:32" (3/4) ... [2024-11-02 11:21:40,449 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-02 11:21:40,453 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-02 11:21:40,453 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-02 11:21:40,453 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-11-02 11:21:40,458 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 34 nodes and edges [2024-11-02 11:21:40,458 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-02 11:21:40,458 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-02 11:21:40,458 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-02 11:21:40,551 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59c743a-6900-49da-9299-e3a84e54bd8d/bin/utaipan-verify-DbMuA5NWw2/witness.graphml [2024-11-02 11:21:40,552 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59c743a-6900-49da-9299-e3a84e54bd8d/bin/utaipan-verify-DbMuA5NWw2/witness.yml [2024-11-02 11:21:40,552 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-02 11:21:40,553 INFO L158 Benchmark]: Toolchain (without parser) took 9762.44ms. Allocated memory was 130.0MB in the beginning and 289.4MB in the end (delta: 159.4MB). Free memory was 96.9MB in the beginning and 217.6MB in the end (delta: -120.7MB). Peak memory consumption was 39.5MB. Max. memory is 16.1GB. [2024-11-02 11:21:40,553 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 130.0MB. Free memory is still 99.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 11:21:40,553 INFO L158 Benchmark]: CACSL2BoogieTranslator took 815.70ms. Allocated memory is still 130.0MB. Free memory was 96.9MB in the beginning and 74.1MB in the end (delta: 22.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-02 11:21:40,553 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.45ms. Allocated memory is still 130.0MB. Free memory was 74.1MB in the beginning and 72.1MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-02 11:21:40,554 INFO L158 Benchmark]: Boogie Preprocessor took 36.24ms. Allocated memory is still 130.0MB. Free memory was 72.1MB in the beginning and 70.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 11:21:40,554 INFO L158 Benchmark]: RCFGBuilder took 705.71ms. Allocated memory is still 130.0MB. Free memory was 70.5MB in the beginning and 52.1MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-02 11:21:40,554 INFO L158 Benchmark]: TraceAbstraction took 8029.81ms. Allocated memory was 130.0MB in the beginning and 289.4MB in the end (delta: 159.4MB). Free memory was 51.5MB in the beginning and 221.8MB in the end (delta: -170.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 11:21:40,554 INFO L158 Benchmark]: Witness Printer took 107.26ms. Allocated memory is still 289.4MB. Free memory was 221.8MB in the beginning and 217.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-02 11:21:40,556 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 130.0MB. Free memory is still 99.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 815.70ms. Allocated memory is still 130.0MB. Free memory was 96.9MB in the beginning and 74.1MB in the end (delta: 22.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.45ms. Allocated memory is still 130.0MB. Free memory was 74.1MB in the beginning and 72.1MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.24ms. Allocated memory is still 130.0MB. Free memory was 72.1MB in the beginning and 70.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 705.71ms. Allocated memory is still 130.0MB. Free memory was 70.5MB in the beginning and 52.1MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 8029.81ms. Allocated memory was 130.0MB in the beginning and 289.4MB in the end (delta: 159.4MB). Free memory was 51.5MB in the beginning and 221.8MB in the end (delta: -170.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 107.26ms. Allocated memory is still 289.4MB. Free memory was 221.8MB in the beginning and 217.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 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 7 procedures, 62 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 7.8s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 956 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 956 mSDsluCounter, 1429 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1001 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 847 IncrementalHoareTripleChecker+Invalid, 881 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 428 mSDtfsCounter, 847 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 88 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3201occurred in iteration=0, InterpolantAutomatonStates: 81, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 3864 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 190 NumberOfCodeBlocks, 190 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 180 ConstructedInterpolants, 0 QuantifiedInterpolants, 762 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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! [2024-11-02 11:21:40,589 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d59c743a-6900-49da-9299-e3a84e54bd8d/bin/utaipan-verify-DbMuA5NWw2/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