./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix014_power.oepc_pso.oepc_rmo.oepc.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_7415a337-b99a-439a-bdb9-4f884c633236/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7415a337-b99a-439a-bdb9-4f884c633236/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_7415a337-b99a-439a-bdb9-4f884c633236/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7415a337-b99a-439a-bdb9-4f884c633236/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix014_power.oepc_pso.oepc_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7415a337-b99a-439a-bdb9-4f884c633236/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_7415a337-b99a-439a-bdb9-4f884c633236/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 a75df8feda97f2ebeb5cc4266066f8deba1b6726a771b6143f22a640cfcf63d2 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:32:15,599 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:32:15,688 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7415a337-b99a-439a-bdb9-4f884c633236/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-02 12:32:15,696 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:32:15,698 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:32:15,732 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:32:15,733 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:32:15,734 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:32:15,735 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:32:15,736 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:32:15,737 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:32:15,738 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:32:15,739 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:32:15,739 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:32:15,740 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:32:15,740 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:32:15,740 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:32:15,741 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:32:15,741 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:32:15,741 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:32:15,746 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:32:15,747 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:32:15,748 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:32:15,748 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:32:15,748 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:32:15,748 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:32:15,749 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:32:15,749 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:32:15,749 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:32:15,749 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:32:15,750 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:32:15,750 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:32:15,751 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:32:15,751 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:32:15,752 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:32:15,752 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:32:15,753 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:32:15,753 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:32:15,754 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:32:15,754 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:32:15,754 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:32:15,755 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:32:15,755 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:32:15,756 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:32:15,756 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:32:15,756 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:32:15,757 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:32:15,757 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_7415a337-b99a-439a-bdb9-4f884c633236/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7415a337-b99a-439a-bdb9-4f884c633236/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a75df8feda97f2ebeb5cc4266066f8deba1b6726a771b6143f22a640cfcf63d2 [2024-11-02 12:32:16,077 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:32:16,107 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:32:16,109 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:32:16,112 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:32:16,113 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:32:16,114 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7415a337-b99a-439a-bdb9-4f884c633236/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/pthread-wmm/mix014_power.oepc_pso.oepc_rmo.oepc.i Unable to find full path for "g++" [2024-11-02 12:32:18,149 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:32:18,484 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:32:18,484 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7415a337-b99a-439a-bdb9-4f884c633236/sv-benchmarks/c/pthread-wmm/mix014_power.oepc_pso.oepc_rmo.oepc.i [2024-11-02 12:32:18,505 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7415a337-b99a-439a-bdb9-4f884c633236/bin/utaipan-verify-DbMuA5NWw2/data/a951ad40d/94f7797c52ff48968b2fd8adb021696a/FLAG434c521cf [2024-11-02 12:32:18,525 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7415a337-b99a-439a-bdb9-4f884c633236/bin/utaipan-verify-DbMuA5NWw2/data/a951ad40d/94f7797c52ff48968b2fd8adb021696a [2024-11-02 12:32:18,528 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:32:18,530 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:32:18,533 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:32:18,534 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:32:18,540 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:32:18,541 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:32:18" (1/1) ... [2024-11-02 12:32:18,542 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b746a0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:18, skipping insertion in model container [2024-11-02 12:32:18,542 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:32:18" (1/1) ... [2024-11-02 12:32:18,605 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:32:18,858 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_7415a337-b99a-439a-bdb9-4f884c633236/sv-benchmarks/c/pthread-wmm/mix014_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2024-11-02 12:32:19,133 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:32:19,148 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:32:19,159 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_7415a337-b99a-439a-bdb9-4f884c633236/sv-benchmarks/c/pthread-wmm/mix014_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2024-11-02 12:32:19,264 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:32:19,312 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:32:19,312 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:19 WrapperNode [2024-11-02 12:32:19,313 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:32:19,313 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:32:19,314 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:32:19,314 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:32:19,320 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:19" (1/1) ... [2024-11-02 12:32:19,337 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:19" (1/1) ... [2024-11-02 12:32:19,370 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 129 [2024-11-02 12:32:19,371 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:32:19,371 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:32:19,372 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:32:19,372 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:32:19,383 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:19" (1/1) ... [2024-11-02 12:32:19,383 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:19" (1/1) ... [2024-11-02 12:32:19,390 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:19" (1/1) ... [2024-11-02 12:32:19,391 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:19" (1/1) ... [2024-11-02 12:32:19,404 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:19" (1/1) ... [2024-11-02 12:32:19,409 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:19" (1/1) ... [2024-11-02 12:32:19,412 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:19" (1/1) ... [2024-11-02 12:32:19,414 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:19" (1/1) ... [2024-11-02 12:32:19,418 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:32:19,419 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:32:19,419 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:32:19,420 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:32:19,421 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:19" (1/1) ... [2024-11-02 12:32:19,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:32:19,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7415a337-b99a-439a-bdb9-4f884c633236/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:32:19,469 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7415a337-b99a-439a-bdb9-4f884c633236/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:32:19,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7415a337-b99a-439a-bdb9-4f884c633236/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:32:19,505 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-02 12:32:19,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:32:19,506 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-02 12:32:19,506 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-02 12:32:19,507 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-02 12:32:19,507 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-02 12:32:19,507 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-02 12:32:19,507 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-02 12:32:19,507 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-02 12:32:19,508 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-02 12:32:19,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:32:19,508 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-02 12:32:19,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:32:19,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:32:19,510 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 12:32:19,708 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:32:19,710 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:32:20,206 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-02 12:32:20,206 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:32:20,531 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:32:20,532 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-02 12:32:20,533 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:32:20 BoogieIcfgContainer [2024-11-02 12:32:20,534 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:32:20,537 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:32:20,538 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:32:20,542 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:32:20,543 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:32:18" (1/3) ... [2024-11-02 12:32:20,544 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f20c186 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:32:20, skipping insertion in model container [2024-11-02 12:32:20,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:19" (2/3) ... [2024-11-02 12:32:20,546 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f20c186 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:32:20, skipping insertion in model container [2024-11-02 12:32:20,546 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:32:20" (3/3) ... [2024-11-02 12:32:20,548 INFO L112 eAbstractionObserver]: Analyzing ICFG mix014_power.oepc_pso.oepc_rmo.oepc.i [2024-11-02 12:32:20,569 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:32:20,569 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-02 12:32:20,569 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-02 12:32:20,659 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-02 12:32:20,701 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 62 places, 50 transitions, 116 flow [2024-11-02 12:32:22,927 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 35986 states, 35983 states have (on average 4.375399494205597) internal successors, (157440), 35985 states have internal predecessors, (157440), 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 12:32:22,972 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:32:22,980 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;@1f86f2bd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:32:22,980 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-02 12:32:23,081 INFO L276 IsEmpty]: Start isEmpty. Operand has 35986 states, 35983 states have (on average 4.375399494205597) internal successors, (157440), 35985 states have internal predecessors, (157440), 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 12:32:23,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-02 12:32:23,089 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:32:23,090 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-02 12:32:23,091 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-02 12:32:23,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:32:23,100 INFO L85 PathProgramCache]: Analyzing trace with hash 12056438, now seen corresponding path program 1 times [2024-11-02 12:32:23,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:32:23,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285370157] [2024-11-02 12:32:23,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:32:23,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:32:23,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:32:23,896 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 12:32:23,897 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:32:23,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285370157] [2024-11-02 12:32:23,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285370157] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:32:23,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:32:23,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 12:32:23,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965600229] [2024-11-02 12:32:23,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:32:23,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:32:23,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:32:23,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:32:23,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:32:24,022 INFO L87 Difference]: Start difference. First operand has 35986 states, 35983 states have (on average 4.375399494205597) internal successors, (157440), 35985 states have internal predecessors, (157440), 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 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 12:32:25,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:32:25,259 INFO L93 Difference]: Finished difference Result 37778 states and 164800 transitions. [2024-11-02 12:32:25,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:32:25,269 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2024-11-02 12:32:25,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:32:25,915 INFO L225 Difference]: With dead ends: 37778 [2024-11-02 12:32:25,915 INFO L226 Difference]: Without dead ends: 29136 [2024-11-02 12:32:25,947 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:32:25,951 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 31 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:32:25,952 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 40 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:32:26,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29136 states. [2024-11-02 12:32:27,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29136 to 29136. [2024-11-02 12:32:27,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29136 states, 29135 states have (on average 4.3251072593101085) internal successors, (126012), 29135 states have internal predecessors, (126012), 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 12:32:28,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29136 states to 29136 states and 126012 transitions. [2024-11-02 12:32:28,231 INFO L78 Accepts]: Start accepts. Automaton has 29136 states and 126012 transitions. Word has length 4 [2024-11-02 12:32:28,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:32:28,232 INFO L471 AbstractCegarLoop]: Abstraction has 29136 states and 126012 transitions. [2024-11-02 12:32:28,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 12:32:28,232 INFO L276 IsEmpty]: Start isEmpty. Operand 29136 states and 126012 transitions. [2024-11-02 12:32:28,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-02 12:32:28,250 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:32:28,250 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:32:28,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 12:32:28,251 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-02 12:32:28,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:32:28,252 INFO L85 PathProgramCache]: Analyzing trace with hash -697841601, now seen corresponding path program 1 times [2024-11-02 12:32:28,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:32:28,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427155868] [2024-11-02 12:32:28,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:32:28,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:32:28,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:32:28,913 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 12:32:28,913 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:32:28,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427155868] [2024-11-02 12:32:28,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427155868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:32:28,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:32:28,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:32:28,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371266661] [2024-11-02 12:32:28,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:32:28,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:32:28,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:32:28,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:32:28,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:32:28,926 INFO L87 Difference]: Start difference. First operand 29136 states and 126012 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 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 12:32:30,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:32:30,040 INFO L93 Difference]: Finished difference Result 44788 states and 190276 transitions. [2024-11-02 12:32:30,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 12:32:30,041 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 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 12:32:30,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:32:30,606 INFO L225 Difference]: With dead ends: 44788 [2024-11-02 12:32:30,607 INFO L226 Difference]: Without dead ends: 22836 [2024-11-02 12:32:30,660 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 12:32:30,661 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 82 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:32:30,663 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 49 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:32:30,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22836 states. [2024-11-02 12:32:31,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22836 to 22836. [2024-11-02 12:32:31,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22836 states, 22835 states have (on average 4.138909568644625) internal successors, (94512), 22835 states have internal predecessors, (94512), 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 12:32:31,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22836 states to 22836 states and 94512 transitions. [2024-11-02 12:32:32,011 INFO L78 Accepts]: Start accepts. Automaton has 22836 states and 94512 transitions. Word has length 16 [2024-11-02 12:32:32,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:32:32,012 INFO L471 AbstractCegarLoop]: Abstraction has 22836 states and 94512 transitions. [2024-11-02 12:32:32,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 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 12:32:32,014 INFO L276 IsEmpty]: Start isEmpty. Operand 22836 states and 94512 transitions. [2024-11-02 12:32:32,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-02 12:32:32,048 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:32:32,048 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] [2024-11-02 12:32:32,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-02 12:32:32,050 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-02 12:32:32,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:32:32,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1844266473, now seen corresponding path program 1 times [2024-11-02 12:32:32,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:32:32,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865627717] [2024-11-02 12:32:32,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:32:32,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:32:32,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:32:32,473 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 12:32:32,474 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:32:32,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865627717] [2024-11-02 12:32:32,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865627717] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:32:32,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:32:32,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-02 12:32:32,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932233131] [2024-11-02 12:32:32,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:32:32,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-02 12:32:32,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:32:32,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-02 12:32:32,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-02 12:32:32,481 INFO L87 Difference]: Start difference. First operand 22836 states and 94512 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 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 12:32:33,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:32:33,483 INFO L93 Difference]: Finished difference Result 29248 states and 118516 transitions. [2024-11-02 12:32:33,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-02 12:32:33,484 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 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 21 [2024-11-02 12:32:33,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:32:33,641 INFO L225 Difference]: With dead ends: 29248 [2024-11-02 12:32:33,642 INFO L226 Difference]: Without dead ends: 13596 [2024-11-02 12:32:33,679 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 12:32:33,681 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 138 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-02 12:32:33,684 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 64 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-02 12:32:33,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13596 states. [2024-11-02 12:32:34,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13596 to 13596. [2024-11-02 12:32:34,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13596 states, 13595 states have (on average 3.893490253769768) internal successors, (52932), 13595 states have internal predecessors, (52932), 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 12:32:34,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13596 states to 13596 states and 52932 transitions. [2024-11-02 12:32:34,188 INFO L78 Accepts]: Start accepts. Automaton has 13596 states and 52932 transitions. Word has length 21 [2024-11-02 12:32:34,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:32:34,189 INFO L471 AbstractCegarLoop]: Abstraction has 13596 states and 52932 transitions. [2024-11-02 12:32:34,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 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 12:32:34,189 INFO L276 IsEmpty]: Start isEmpty. Operand 13596 states and 52932 transitions. [2024-11-02 12:32:34,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-02 12:32:34,222 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:32:34,222 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 12:32:34,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-02 12:32:34,223 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-02 12:32:34,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:32:34,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1756796663, now seen corresponding path program 1 times [2024-11-02 12:32:34,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:32:34,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896001834] [2024-11-02 12:32:34,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:32:34,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:32:34,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:32:34,997 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 12:32:34,997 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:32:34,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896001834] [2024-11-02 12:32:34,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896001834] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:32:34,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:32:34,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-02 12:32:34,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709880735] [2024-11-02 12:32:34,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:32:34,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 12:32:35,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:32:35,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 12:32:35,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-02 12:32:35,001 INFO L87 Difference]: Start difference. First operand 13596 states and 52932 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 12:32:35,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:32:35,406 INFO L93 Difference]: Finished difference Result 14940 states and 57388 transitions. [2024-11-02 12:32:35,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 12:32:35,407 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 12:32:35,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:32:35,471 INFO L225 Difference]: With dead ends: 14940 [2024-11-02 12:32:35,471 INFO L226 Difference]: Without dead ends: 8528 [2024-11-02 12:32:35,486 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-11-02 12:32:35,488 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 200 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-02 12:32:35,490 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 76 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-02 12:32:35,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8528 states. [2024-11-02 12:32:35,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8528 to 8528. [2024-11-02 12:32:35,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8528 states, 8527 states have (on average 3.830186466518119) internal successors, (32660), 8527 states have internal predecessors, (32660), 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 12:32:35,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8528 states to 8528 states and 32660 transitions. [2024-11-02 12:32:35,744 INFO L78 Accepts]: Start accepts. Automaton has 8528 states and 32660 transitions. Word has length 26 [2024-11-02 12:32:35,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:32:35,744 INFO L471 AbstractCegarLoop]: Abstraction has 8528 states and 32660 transitions. [2024-11-02 12:32:35,744 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 12:32:35,744 INFO L276 IsEmpty]: Start isEmpty. Operand 8528 states and 32660 transitions. [2024-11-02 12:32:35,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-02 12:32:35,772 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:32:35,772 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, 1, 1, 1, 1, 1, 1] [2024-11-02 12:32:35,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-02 12:32:35,773 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-02 12:32:35,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:32:35,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1121903850, now seen corresponding path program 1 times [2024-11-02 12:32:35,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:32:35,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699309229] [2024-11-02 12:32:35,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:32:35,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:32:35,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:32:36,365 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 12:32:36,365 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:32:36,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699309229] [2024-11-02 12:32:36,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699309229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:32:36,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:32:36,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-02 12:32:36,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200614733] [2024-11-02 12:32:36,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:32:36,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-02 12:32:36,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:32:36,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-02 12:32:36,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-02 12:32:36,370 INFO L87 Difference]: Start difference. First operand 8528 states and 32660 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 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 12:32:36,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:32:36,775 INFO L93 Difference]: Finished difference Result 8640 states and 32980 transitions. [2024-11-02 12:32:36,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-02 12:32:36,776 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 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 32 [2024-11-02 12:32:36,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:32:36,846 INFO L225 Difference]: With dead ends: 8640 [2024-11-02 12:32:36,847 INFO L226 Difference]: Without dead ends: 7296 [2024-11-02 12:32:36,854 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2024-11-02 12:32:36,855 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 224 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-02 12:32:36,855 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 63 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-02 12:32:36,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7296 states. [2024-11-02 12:32:37,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7296 to 7296. [2024-11-02 12:32:37,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7296 states, 7295 states have (on average 3.8859492803289926) internal successors, (28348), 7295 states have internal predecessors, (28348), 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 12:32:37,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7296 states to 7296 states and 28348 transitions. [2024-11-02 12:32:37,119 INFO L78 Accepts]: Start accepts. Automaton has 7296 states and 28348 transitions. Word has length 32 [2024-11-02 12:32:37,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:32:37,120 INFO L471 AbstractCegarLoop]: Abstraction has 7296 states and 28348 transitions. [2024-11-02 12:32:37,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 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 12:32:37,120 INFO L276 IsEmpty]: Start isEmpty. Operand 7296 states and 28348 transitions. [2024-11-02 12:32:37,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-02 12:32:37,143 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:32:37,144 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:32:37,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-02 12:32:37,144 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-02 12:32:37,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:32:37,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1756844391, now seen corresponding path program 1 times [2024-11-02 12:32:37,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:32:37,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107764768] [2024-11-02 12:32:37,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:32:37,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:32:37,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:32:37,810 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 12:32:37,811 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:32:37,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107764768] [2024-11-02 12:32:37,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107764768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:32:37,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:32:37,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-02 12:32:37,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365130035] [2024-11-02 12:32:37,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:32:37,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 12:32:37,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:32:37,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 12:32:37,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-02 12:32:37,814 INFO L87 Difference]: Start difference. First operand 7296 states and 28348 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 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 12:32:38,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:32:38,234 INFO L93 Difference]: Finished difference Result 10480 states and 40220 transitions. [2024-11-02 12:32:38,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 12:32:38,235 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 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 38 [2024-11-02 12:32:38,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:32:38,297 INFO L225 Difference]: With dead ends: 10480 [2024-11-02 12:32:38,297 INFO L226 Difference]: Without dead ends: 4992 [2024-11-02 12:32:38,306 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 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 12:32:38,307 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 48 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:32:38,308 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 121 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:32:38,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4992 states. [2024-11-02 12:32:38,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4992 to 4992. [2024-11-02 12:32:38,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4992 states, 4991 states have (on average 3.753957122821078) internal successors, (18736), 4991 states have internal predecessors, (18736), 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 12:32:38,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4992 states to 4992 states and 18736 transitions. [2024-11-02 12:32:38,554 INFO L78 Accepts]: Start accepts. Automaton has 4992 states and 18736 transitions. Word has length 38 [2024-11-02 12:32:38,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:32:38,555 INFO L471 AbstractCegarLoop]: Abstraction has 4992 states and 18736 transitions. [2024-11-02 12:32:38,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 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 12:32:38,555 INFO L276 IsEmpty]: Start isEmpty. Operand 4992 states and 18736 transitions. [2024-11-02 12:32:38,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-02 12:32:38,575 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:32:38,575 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:32:38,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-02 12:32:38,576 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-02 12:32:38,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:32:38,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1100502387, now seen corresponding path program 2 times [2024-11-02 12:32:38,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:32:38,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225708767] [2024-11-02 12:32:38,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:32:38,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:32:38,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:32:39,295 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 12:32:39,295 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:32:39,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225708767] [2024-11-02 12:32:39,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225708767] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:32:39,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:32:39,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-02 12:32:39,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948129460] [2024-11-02 12:32:39,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:32:39,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-02 12:32:39,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:32:39,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-02 12:32:39,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-02 12:32:39,299 INFO L87 Difference]: Start difference. First operand 4992 states and 18736 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 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 12:32:39,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:32:39,918 INFO L93 Difference]: Finished difference Result 7360 states and 27484 transitions. [2024-11-02 12:32:39,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-02 12:32:39,919 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 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 38 [2024-11-02 12:32:39,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:32:39,980 INFO L225 Difference]: With dead ends: 7360 [2024-11-02 12:32:39,980 INFO L226 Difference]: Without dead ends: 3172 [2024-11-02 12:32:39,990 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-02 12:32:39,991 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 93 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-02 12:32:39,991 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 165 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-02 12:32:39,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3172 states. [2024-11-02 12:32:40,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3172 to 3012. [2024-11-02 12:32:40,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3012 states, 3011 states have (on average 3.5821986051145798) internal successors, (10786), 3011 states have internal predecessors, (10786), 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 12:32:40,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3012 states to 3012 states and 10786 transitions. [2024-11-02 12:32:40,166 INFO L78 Accepts]: Start accepts. Automaton has 3012 states and 10786 transitions. Word has length 38 [2024-11-02 12:32:40,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:32:40,167 INFO L471 AbstractCegarLoop]: Abstraction has 3012 states and 10786 transitions. [2024-11-02 12:32:40,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 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 12:32:40,167 INFO L276 IsEmpty]: Start isEmpty. Operand 3012 states and 10786 transitions. [2024-11-02 12:32:40,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-02 12:32:40,179 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:32:40,180 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:32:40,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-02 12:32:40,180 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-02 12:32:40,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:32:40,181 INFO L85 PathProgramCache]: Analyzing trace with hash 363591741, now seen corresponding path program 3 times [2024-11-02 12:32:40,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:32:40,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480468368] [2024-11-02 12:32:40,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:32:40,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:32:40,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:32:41,220 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 12:32:41,221 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:32:41,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480468368] [2024-11-02 12:32:41,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480468368] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:32:41,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:32:41,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-02 12:32:41,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436610923] [2024-11-02 12:32:41,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:32:41,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-02 12:32:41,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:32:41,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-02 12:32:41,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-02 12:32:41,224 INFO L87 Difference]: Start difference. First operand 3012 states and 10786 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 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 12:32:41,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:32:41,922 INFO L93 Difference]: Finished difference Result 4052 states and 14442 transitions. [2024-11-02 12:32:41,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-02 12:32:41,923 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 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 38 [2024-11-02 12:32:41,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:32:41,972 INFO L225 Difference]: With dead ends: 4052 [2024-11-02 12:32:41,972 INFO L226 Difference]: Without dead ends: 2564 [2024-11-02 12:32:41,976 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-02 12:32:41,977 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 144 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-02 12:32:41,977 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 206 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-02 12:32:41,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2564 states. [2024-11-02 12:32:42,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2564 to 2276. [2024-11-02 12:32:42,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2276 states, 2275 states have (on average 3.496263736263736) internal successors, (7954), 2275 states have internal predecessors, (7954), 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 12:32:42,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2276 states to 2276 states and 7954 transitions. [2024-11-02 12:32:42,077 INFO L78 Accepts]: Start accepts. Automaton has 2276 states and 7954 transitions. Word has length 38 [2024-11-02 12:32:42,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:32:42,078 INFO L471 AbstractCegarLoop]: Abstraction has 2276 states and 7954 transitions. [2024-11-02 12:32:42,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 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 12:32:42,078 INFO L276 IsEmpty]: Start isEmpty. Operand 2276 states and 7954 transitions. [2024-11-02 12:32:42,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-02 12:32:42,083 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:32:42,083 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:32:42,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-02 12:32:42,084 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-02 12:32:42,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:32:42,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1978307411, now seen corresponding path program 4 times [2024-11-02 12:32:42,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:32:42,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87354390] [2024-11-02 12:32:42,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:32:42,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:32:42,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:32:42,636 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 12:32:42,638 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:32:42,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87354390] [2024-11-02 12:32:42,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87354390] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:32:42,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:32:42,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-02 12:32:42,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731257702] [2024-11-02 12:32:42,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:32:42,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-02 12:32:42,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:32:42,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-02 12:32:42,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-02 12:32:42,644 INFO L87 Difference]: Start difference. First operand 2276 states and 7954 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 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 12:32:43,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:32:43,121 INFO L93 Difference]: Finished difference Result 3188 states and 11130 transitions. [2024-11-02 12:32:43,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-02 12:32:43,122 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 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 38 [2024-11-02 12:32:43,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:32:43,166 INFO L225 Difference]: With dead ends: 3188 [2024-11-02 12:32:43,166 INFO L226 Difference]: Without dead ends: 1908 [2024-11-02 12:32:43,170 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-02 12:32:43,170 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 107 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-02 12:32:43,171 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 134 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-02 12:32:43,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1908 states. [2024-11-02 12:32:43,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1908 to 1908. [2024-11-02 12:32:43,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1908 states, 1907 states have (on average 3.4284216046145777) internal successors, (6538), 1907 states have internal predecessors, (6538), 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 12:32:43,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1908 states to 1908 states and 6538 transitions. [2024-11-02 12:32:43,257 INFO L78 Accepts]: Start accepts. Automaton has 1908 states and 6538 transitions. Word has length 38 [2024-11-02 12:32:43,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:32:43,257 INFO L471 AbstractCegarLoop]: Abstraction has 1908 states and 6538 transitions. [2024-11-02 12:32:43,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 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 12:32:43,257 INFO L276 IsEmpty]: Start isEmpty. Operand 1908 states and 6538 transitions. [2024-11-02 12:32:43,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-02 12:32:43,263 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:32:43,263 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:32:43,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-02 12:32:43,264 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-02 12:32:43,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:32:43,266 INFO L85 PathProgramCache]: Analyzing trace with hash 2113976015, now seen corresponding path program 5 times [2024-11-02 12:32:43,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:32:43,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68354969] [2024-11-02 12:32:43,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:32:43,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:32:43,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat