./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/systemc/transmitter.03.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 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_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/systemc/transmitter.03.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje --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 4edad7c083448b81b05575191757512095bfff0f094103ddb1a592d0cd702494 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 04:38:08,787 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:38:08,891 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 04:38:08,897 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:38:08,898 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:38:08,941 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:38:08,944 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:38:08,945 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:38:08,946 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:38:08,948 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:38:08,948 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 04:38:08,949 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 04:38:08,949 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 04:38:08,950 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 04:38:08,950 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 04:38:08,951 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 04:38:08,951 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 04:38:08,952 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 04:38:08,952 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 04:38:08,953 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 04:38:08,957 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 04:38:08,958 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 04:38:08,962 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:38:08,963 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 04:38:08,963 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 04:38:08,964 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 04:38:08,964 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 04:38:08,964 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:38:08,965 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 04:38:08,967 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:38:08,967 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 04:38:08,968 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:38:08,968 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 04:38:08,970 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 04:38:08,970 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:38:08,971 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:38:08,971 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:38:08,972 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:38:08,973 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:38:08,973 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:38:08,973 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:38:08,974 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 04:38:08,975 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 04:38:08,975 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 04:38:08,976 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:38:08,976 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 04:38:08,977 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 04:38:08,977 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_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4edad7c083448b81b05575191757512095bfff0f094103ddb1a592d0cd702494 [2024-11-09 04:38:09,333 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:38:09,388 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:38:09,391 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:38:09,394 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:38:09,395 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:38:09,396 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/systemc/transmitter.03.cil.c Unable to find full path for "g++" [2024-11-09 04:38:11,749 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:38:12,117 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:38:12,117 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/sv-benchmarks/c/systemc/transmitter.03.cil.c [2024-11-09 04:38:12,138 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/data/54f59f518/13be5ab6cc42483489ec34d4966b1f00/FLAGb4148888e [2024-11-09 04:38:12,356 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/data/54f59f518/13be5ab6cc42483489ec34d4966b1f00 [2024-11-09 04:38:12,359 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:38:12,361 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:38:12,363 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:38:12,364 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:38:12,372 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:38:12,373 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:38:12" (1/1) ... [2024-11-09 04:38:12,375 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63ac4526 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:38:12, skipping insertion in model container [2024-11-09 04:38:12,379 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:38:12" (1/1) ... [2024-11-09 04:38:12,442 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:38:12,707 WARN L250 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_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/sv-benchmarks/c/systemc/transmitter.03.cil.c[706,719] [2024-11-09 04:38:12,805 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:38:12,818 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:38:12,832 WARN L250 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_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/sv-benchmarks/c/systemc/transmitter.03.cil.c[706,719] [2024-11-09 04:38:12,872 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:38:12,895 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:38:12,896 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:38:12 WrapperNode [2024-11-09 04:38:12,896 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:38:12,897 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:38:12,897 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:38:12,898 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:38:12,905 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:38:12" (1/1) ... [2024-11-09 04:38:12,913 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:38:12" (1/1) ... [2024-11-09 04:38:12,944 INFO L138 Inliner]: procedures = 34, calls = 39, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 321 [2024-11-09 04:38:12,944 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:38:12,945 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:38:12,946 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:38:12,946 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:38:12,956 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:38:12" (1/1) ... [2024-11-09 04:38:12,957 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:38:12" (1/1) ... [2024-11-09 04:38:12,960 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:38:12" (1/1) ... [2024-11-09 04:38:12,961 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:38:12" (1/1) ... [2024-11-09 04:38:12,968 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:38:12" (1/1) ... [2024-11-09 04:38:12,976 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:38:12" (1/1) ... [2024-11-09 04:38:12,979 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:38:12" (1/1) ... [2024-11-09 04:38:12,981 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:38:12" (1/1) ... [2024-11-09 04:38:12,985 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:38:12,987 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:38:12,987 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:38:12,987 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:38:12,988 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:38:12" (1/1) ... [2024-11-09 04:38:13,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:38:13,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:38:13,056 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 04:38:13,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 04:38:13,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:38:13,101 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-09 04:38:13,102 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-09 04:38:13,102 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-09 04:38:13,102 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-09 04:38:13,102 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-09 04:38:13,103 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-09 04:38:13,103 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-09 04:38:13,103 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-09 04:38:13,103 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-09 04:38:13,103 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-09 04:38:13,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 04:38:13,104 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-09 04:38:13,107 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-09 04:38:13,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:38:13,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:38:13,210 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:38:13,212 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:38:13,827 INFO L? ?]: Removed 43 outVars from TransFormulas that were not future-live. [2024-11-09 04:38:13,828 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:38:14,118 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:38:14,119 INFO L316 CfgBuilder]: Removed 7 assume(true) statements. [2024-11-09 04:38:14,119 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:38:14 BoogieIcfgContainer [2024-11-09 04:38:14,120 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:38:14,123 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:38:14,123 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:38:14,127 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:38:14,128 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:38:12" (1/3) ... [2024-11-09 04:38:14,129 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@142e40d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:38:14, skipping insertion in model container [2024-11-09 04:38:14,129 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:38:12" (2/3) ... [2024-11-09 04:38:14,129 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@142e40d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:38:14, skipping insertion in model container [2024-11-09 04:38:14,129 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:38:14" (3/3) ... [2024-11-09 04:38:14,131 INFO L112 eAbstractionObserver]: Analyzing ICFG transmitter.03.cil.c [2024-11-09 04:38:14,155 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:38:14,156 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 04:38:14,277 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:38:14,286 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;@67b0c19d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:38:14,286 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 04:38:14,292 INFO L276 IsEmpty]: Start isEmpty. Operand has 91 states, 67 states have (on average 1.4776119402985075) internal successors, (99), 69 states have internal predecessors, (99), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-09 04:38:14,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-09 04:38:14,308 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:38:14,309 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, 1, 1, 1] [2024-11-09 04:38:14,310 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:38:14,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:38:14,320 INFO L85 PathProgramCache]: Analyzing trace with hash 177740326, now seen corresponding path program 1 times [2024-11-09 04:38:14,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:38:14,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262781493] [2024-11-09 04:38:14,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:38:14,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:38:14,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:38:14,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:38:14,904 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:38:14,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262781493] [2024-11-09 04:38:14,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262781493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:38:14,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:38:14,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:38:14,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677139424] [2024-11-09 04:38:14,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:38:14,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:38:14,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:38:14,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:38:14,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:38:14,960 INFO L87 Difference]: Start difference. First operand has 91 states, 67 states have (on average 1.4776119402985075) internal successors, (99), 69 states have internal predecessors, (99), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 04:38:15,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:38:15,477 INFO L93 Difference]: Finished difference Result 260 states and 379 transitions. [2024-11-09 04:38:15,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:38:15,481 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 41 [2024-11-09 04:38:15,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:38:15,495 INFO L225 Difference]: With dead ends: 260 [2024-11-09 04:38:15,495 INFO L226 Difference]: Without dead ends: 170 [2024-11-09 04:38:15,502 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:38:15,510 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 218 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 04:38:15,511 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 314 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 04:38:15,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2024-11-09 04:38:15,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 166. [2024-11-09 04:38:15,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 125 states have (on average 1.384) internal successors, (173), 127 states have internal predecessors, (173), 28 states have call successors, (28), 12 states have call predecessors, (28), 12 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-09 04:38:15,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 229 transitions. [2024-11-09 04:38:15,614 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 229 transitions. Word has length 41 [2024-11-09 04:38:15,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:38:15,615 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 229 transitions. [2024-11-09 04:38:15,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 04:38:15,618 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 229 transitions. [2024-11-09 04:38:15,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-09 04:38:15,621 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:38:15,622 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, 1, 1, 1] [2024-11-09 04:38:15,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 04:38:15,623 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:38:15,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:38:15,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1593730649, now seen corresponding path program 1 times [2024-11-09 04:38:15,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:38:15,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255172158] [2024-11-09 04:38:15,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:38:15,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:38:15,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:38:15,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:38:15,902 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:38:15,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255172158] [2024-11-09 04:38:15,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255172158] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:38:15,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:38:15,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 04:38:15,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974094677] [2024-11-09 04:38:15,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:38:15,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 04:38:15,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:38:15,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 04:38:15,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:38:15,907 INFO L87 Difference]: Start difference. First operand 166 states and 229 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 04:38:16,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:38:16,755 INFO L93 Difference]: Finished difference Result 937 states and 1341 transitions. [2024-11-09 04:38:16,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 04:38:16,756 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 41 [2024-11-09 04:38:16,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:38:16,768 INFO L225 Difference]: With dead ends: 937 [2024-11-09 04:38:16,768 INFO L226 Difference]: Without dead ends: 776 [2024-11-09 04:38:16,771 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-09 04:38:16,773 INFO L432 NwaCegarLoop]: 224 mSDtfsCounter, 446 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 04:38:16,774 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [447 Valid, 476 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 04:38:16,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2024-11-09 04:38:16,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 740. [2024-11-09 04:38:16,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 740 states, 567 states have (on average 1.36331569664903) internal successors, (773), 575 states have internal predecessors, (773), 112 states have call successors, (112), 60 states have call predecessors, (112), 60 states have return successors, (154), 105 states have call predecessors, (154), 112 states have call successors, (154) [2024-11-09 04:38:16,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 1039 transitions. [2024-11-09 04:38:16,926 INFO L78 Accepts]: Start accepts. Automaton has 740 states and 1039 transitions. Word has length 41 [2024-11-09 04:38:16,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:38:16,926 INFO L471 AbstractCegarLoop]: Abstraction has 740 states and 1039 transitions. [2024-11-09 04:38:16,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 04:38:16,927 INFO L276 IsEmpty]: Start isEmpty. Operand 740 states and 1039 transitions. [2024-11-09 04:38:16,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-09 04:38:16,931 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:38:16,933 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, 1, 1, 1] [2024-11-09 04:38:16,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 04:38:16,934 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:38:16,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:38:16,935 INFO L85 PathProgramCache]: Analyzing trace with hash 643632616, now seen corresponding path program 1 times [2024-11-09 04:38:16,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:38:16,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019231283] [2024-11-09 04:38:16,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:38:16,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:38:16,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:38:17,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:38:17,147 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:38:17,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019231283] [2024-11-09 04:38:17,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019231283] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:38:17,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:38:17,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 04:38:17,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825058087] [2024-11-09 04:38:17,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:38:17,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 04:38:17,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:38:17,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 04:38:17,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:38:17,155 INFO L87 Difference]: Start difference. First operand 740 states and 1039 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 04:38:17,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:38:17,953 INFO L93 Difference]: Finished difference Result 2905 states and 4198 transitions. [2024-11-09 04:38:17,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 04:38:17,955 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 41 [2024-11-09 04:38:17,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:38:17,983 INFO L225 Difference]: With dead ends: 2905 [2024-11-09 04:38:17,983 INFO L226 Difference]: Without dead ends: 2170 [2024-11-09 04:38:17,991 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-09 04:38:17,993 INFO L432 NwaCegarLoop]: 237 mSDtfsCounter, 444 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 04:38:17,994 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [449 Valid, 480 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 04:38:18,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2170 states. [2024-11-09 04:38:18,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2170 to 1942. [2024-11-09 04:38:18,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1942 states, 1501 states have (on average 1.3610926049300467) internal successors, (2043), 1507 states have internal predecessors, (2043), 276 states have call successors, (276), 148 states have call predecessors, (276), 164 states have return successors, (464), 287 states have call predecessors, (464), 276 states have call successors, (464) [2024-11-09 04:38:18,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1942 states to 1942 states and 2783 transitions. [2024-11-09 04:38:18,350 INFO L78 Accepts]: Start accepts. Automaton has 1942 states and 2783 transitions. Word has length 41 [2024-11-09 04:38:18,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:38:18,351 INFO L471 AbstractCegarLoop]: Abstraction has 1942 states and 2783 transitions. [2024-11-09 04:38:18,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 04:38:18,351 INFO L276 IsEmpty]: Start isEmpty. Operand 1942 states and 2783 transitions. [2024-11-09 04:38:18,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-09 04:38:18,353 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:38:18,353 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:38:18,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 04:38:18,354 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:38:18,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:38:18,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1393477996, now seen corresponding path program 1 times [2024-11-09 04:38:18,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:38:18,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466873474] [2024-11-09 04:38:18,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:38:18,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:38:18,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:38:18,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:38:18,604 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:38:18,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466873474] [2024-11-09 04:38:18,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466873474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:38:18,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:38:18,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 04:38:18,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140953953] [2024-11-09 04:38:18,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:38:18,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 04:38:18,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:38:18,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 04:38:18,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 04:38:18,608 INFO L87 Difference]: Start difference. First operand 1942 states and 2783 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 04:38:19,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:38:19,361 INFO L93 Difference]: Finished difference Result 5184 states and 7429 transitions. [2024-11-09 04:38:19,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 04:38:19,362 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 45 [2024-11-09 04:38:19,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:38:19,387 INFO L225 Difference]: With dead ends: 5184 [2024-11-09 04:38:19,387 INFO L226 Difference]: Without dead ends: 3248 [2024-11-09 04:38:19,395 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2024-11-09 04:38:19,397 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 302 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 04:38:19,397 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 306 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 04:38:19,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3248 states. [2024-11-09 04:38:19,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3248 to 3035. [2024-11-09 04:38:19,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3035 states, 2362 states have (on average 1.342506350550381) internal successors, (3171), 2371 states have internal predecessors, (3171), 406 states have call successors, (406), 238 states have call predecessors, (406), 266 states have return successors, (676), 426 states have call predecessors, (676), 406 states have call successors, (676) [2024-11-09 04:38:19,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3035 states to 3035 states and 4253 transitions. [2024-11-09 04:38:19,813 INFO L78 Accepts]: Start accepts. Automaton has 3035 states and 4253 transitions. Word has length 45 [2024-11-09 04:38:19,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:38:19,814 INFO L471 AbstractCegarLoop]: Abstraction has 3035 states and 4253 transitions. [2024-11-09 04:38:19,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 04:38:19,815 INFO L276 IsEmpty]: Start isEmpty. Operand 3035 states and 4253 transitions. [2024-11-09 04:38:19,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-09 04:38:19,816 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:38:19,817 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:38:19,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 04:38:19,817 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:38:19,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:38:19,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1972860004, now seen corresponding path program 1 times [2024-11-09 04:38:19,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:38:19,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407826435] [2024-11-09 04:38:19,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:38:19,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:38:19,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:38:20,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:38:20,088 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:38:20,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407826435] [2024-11-09 04:38:20,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407826435] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:38:20,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:38:20,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 04:38:20,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813819646] [2024-11-09 04:38:20,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:38:20,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 04:38:20,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:38:20,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 04:38:20,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 04:38:20,091 INFO L87 Difference]: Start difference. First operand 3035 states and 4253 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 04:38:21,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:38:21,036 INFO L93 Difference]: Finished difference Result 7978 states and 11247 transitions. [2024-11-09 04:38:21,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 04:38:21,037 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 47 [2024-11-09 04:38:21,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:38:21,078 INFO L225 Difference]: With dead ends: 7978 [2024-11-09 04:38:21,078 INFO L226 Difference]: Without dead ends: 4949 [2024-11-09 04:38:21,089 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2024-11-09 04:38:21,091 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 273 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 04:38:21,095 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 329 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 04:38:21,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4949 states. [2024-11-09 04:38:21,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4949 to 4739. [2024-11-09 04:38:21,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4739 states, 3688 states have (on average 1.3248373101952278) internal successors, (4886), 3704 states have internal predecessors, (4886), 630 states have call successors, (630), 380 states have call predecessors, (630), 420 states have return successors, (1051), 655 states have call predecessors, (1051), 630 states have call successors, (1051) [2024-11-09 04:38:21,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4739 states to 4739 states and 6567 transitions. [2024-11-09 04:38:21,659 INFO L78 Accepts]: Start accepts. Automaton has 4739 states and 6567 transitions. Word has length 47 [2024-11-09 04:38:21,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:38:21,660 INFO L471 AbstractCegarLoop]: Abstraction has 4739 states and 6567 transitions. [2024-11-09 04:38:21,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 04:38:21,660 INFO L276 IsEmpty]: Start isEmpty. Operand 4739 states and 6567 transitions. [2024-11-09 04:38:21,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-09 04:38:21,662 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:38:21,662 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:38:21,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 04:38:21,662 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:38:21,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:38:21,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1255036264, now seen corresponding path program 1 times [2024-11-09 04:38:21,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:38:21,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380985896] [2024-11-09 04:38:21,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:38:21,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:38:21,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:38:21,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:38:21,716 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:38:21,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380985896] [2024-11-09 04:38:21,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380985896] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:38:21,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:38:21,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 04:38:21,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232501665] [2024-11-09 04:38:21,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:38:21,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:38:21,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:38:21,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:38:21,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:38:21,722 INFO L87 Difference]: Start difference. First operand 4739 states and 6567 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-09 04:38:22,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:38:22,392 INFO L93 Difference]: Finished difference Result 9713 states and 13659 transitions. [2024-11-09 04:38:22,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:38:22,393 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 49 [2024-11-09 04:38:22,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:38:22,433 INFO L225 Difference]: With dead ends: 9713 [2024-11-09 04:38:22,434 INFO L226 Difference]: Without dead ends: 6476 [2024-11-09 04:38:22,446 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:38:22,450 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 92 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:38:22,451 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 192 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:38:22,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6476 states. [2024-11-09 04:38:23,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6476 to 5624. [2024-11-09 04:38:23,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5624 states, 4352 states have (on average 1.3000919117647058) internal successors, (5658), 4383 states have internal predecessors, (5658), 775 states have call successors, (775), 474 states have call predecessors, (775), 496 states have return successors, (1081), 767 states have call predecessors, (1081), 775 states have call successors, (1081) [2024-11-09 04:38:23,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5624 states to 5624 states and 7514 transitions. [2024-11-09 04:38:23,062 INFO L78 Accepts]: Start accepts. Automaton has 5624 states and 7514 transitions. Word has length 49 [2024-11-09 04:38:23,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:38:23,063 INFO L471 AbstractCegarLoop]: Abstraction has 5624 states and 7514 transitions. [2024-11-09 04:38:23,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-09 04:38:23,063 INFO L276 IsEmpty]: Start isEmpty. Operand 5624 states and 7514 transitions. [2024-11-09 04:38:23,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-09 04:38:23,066 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:38:23,066 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:38:23,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 04:38:23,066 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:38:23,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:38:23,067 INFO L85 PathProgramCache]: Analyzing trace with hash -188528947, now seen corresponding path program 1 times [2024-11-09 04:38:23,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:38:23,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908060783] [2024-11-09 04:38:23,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:38:23,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:38:23,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:38:23,223 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 04:38:23,223 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:38:23,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908060783] [2024-11-09 04:38:23,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908060783] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:38:23,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:38:23,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 04:38:23,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636251368] [2024-11-09 04:38:23,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:38:23,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 04:38:23,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:38:23,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 04:38:23,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 04:38:23,226 INFO L87 Difference]: Start difference. First operand 5624 states and 7514 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-09 04:38:24,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:38:24,680 INFO L93 Difference]: Finished difference Result 16172 states and 21584 transitions. [2024-11-09 04:38:24,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 04:38:24,681 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 63 [2024-11-09 04:38:24,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:38:24,762 INFO L225 Difference]: With dead ends: 16172 [2024-11-09 04:38:24,763 INFO L226 Difference]: Without dead ends: 10554 [2024-11-09 04:38:24,782 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2024-11-09 04:38:24,783 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 284 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 04:38:24,783 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 323 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 04:38:24,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10554 states. [2024-11-09 04:38:25,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10554 to 10096. [2024-11-09 04:38:25,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10096 states, 7796 states have (on average 1.2850179579271421) internal successors, (10018), 7841 states have internal predecessors, (10018), 1395 states have call successors, (1395), 864 states have call predecessors, (1395), 904 states have return successors, (1951), 1391 states have call predecessors, (1951), 1395 states have call successors, (1951) [2024-11-09 04:38:25,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10096 states to 10096 states and 13364 transitions. [2024-11-09 04:38:26,004 INFO L78 Accepts]: Start accepts. Automaton has 10096 states and 13364 transitions. Word has length 63 [2024-11-09 04:38:26,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:38:26,005 INFO L471 AbstractCegarLoop]: Abstraction has 10096 states and 13364 transitions. [2024-11-09 04:38:26,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-09 04:38:26,006 INFO L276 IsEmpty]: Start isEmpty. Operand 10096 states and 13364 transitions. [2024-11-09 04:38:26,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-09 04:38:26,008 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:38:26,008 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:38:26,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 04:38:26,009 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:38:26,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:38:26,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1218255557, now seen corresponding path program 1 times [2024-11-09 04:38:26,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:38:26,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214268434] [2024-11-09 04:38:26,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:38:26,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:38:26,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:38:26,091 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 04:38:26,091 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:38:26,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214268434] [2024-11-09 04:38:26,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214268434] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:38:26,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:38:26,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 04:38:26,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483958166] [2024-11-09 04:38:26,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:38:26,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:38:26,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:38:26,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:38:26,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:38:26,095 INFO L87 Difference]: Start difference. First operand 10096 states and 13364 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 04:38:27,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:38:27,451 INFO L93 Difference]: Finished difference Result 16406 states and 22028 transitions. [2024-11-09 04:38:27,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:38:27,452 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 67 [2024-11-09 04:38:27,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:38:27,536 INFO L225 Difference]: With dead ends: 16406 [2024-11-09 04:38:27,537 INFO L226 Difference]: Without dead ends: 12704 [2024-11-09 04:38:27,555 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:38:27,556 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 64 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:38:27,558 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 276 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:38:27,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12704 states. [2024-11-09 04:38:28,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12704 to 10900. [2024-11-09 04:38:28,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10900 states, 8510 states have (on average 1.2889541715628672) internal successors, (10969), 8555 states have internal predecessors, (10969), 1440 states have call successors, (1440), 909 states have call predecessors, (1440), 949 states have return successors, (1996), 1436 states have call predecessors, (1996), 1440 states have call successors, (1996) [2024-11-09 04:38:28,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10900 states to 10900 states and 14405 transitions. [2024-11-09 04:38:28,927 INFO L78 Accepts]: Start accepts. Automaton has 10900 states and 14405 transitions. Word has length 67 [2024-11-09 04:38:28,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:38:28,929 INFO L471 AbstractCegarLoop]: Abstraction has 10900 states and 14405 transitions. [2024-11-09 04:38:28,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 04:38:28,931 INFO L276 IsEmpty]: Start isEmpty. Operand 10900 states and 14405 transitions. [2024-11-09 04:38:28,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-09 04:38:28,947 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:38:28,948 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:38:28,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 04:38:28,948 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:38:28,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:38:28,949 INFO L85 PathProgramCache]: Analyzing trace with hash -330225624, now seen corresponding path program 1 times [2024-11-09 04:38:28,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:38:28,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949338206] [2024-11-09 04:38:28,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:38:28,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:38:28,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:38:29,059 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 04:38:29,059 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:38:29,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949338206] [2024-11-09 04:38:29,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949338206] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:38:29,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:38:29,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 04:38:29,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300170204] [2024-11-09 04:38:29,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:38:29,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:38:29,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:38:29,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:38:29,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:38:29,069 INFO L87 Difference]: Start difference. First operand 10900 states and 14405 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-09 04:38:30,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:38:30,572 INFO L93 Difference]: Finished difference Result 22455 states and 29746 transitions. [2024-11-09 04:38:30,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:38:30,572 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 89 [2024-11-09 04:38:30,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:38:30,643 INFO L225 Difference]: With dead ends: 22455 [2024-11-09 04:38:30,644 INFO L226 Difference]: Without dead ends: 13024 [2024-11-09 04:38:30,677 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:38:30,679 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 84 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:38:30,681 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 201 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:38:30,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13024 states. [2024-11-09 04:38:31,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13024 to 7687. [2024-11-09 04:38:31,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7687 states, 6015 states have (on average 1.2799667497921863) internal successors, (7699), 6048 states have internal predecessors, (7699), 1016 states have call successors, (1016), 647 states have call predecessors, (1016), 655 states have return successors, (1280), 992 states have call predecessors, (1280), 1016 states have call successors, (1280) [2024-11-09 04:38:31,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7687 states to 7687 states and 9995 transitions. [2024-11-09 04:38:31,700 INFO L78 Accepts]: Start accepts. Automaton has 7687 states and 9995 transitions. Word has length 89 [2024-11-09 04:38:31,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:38:31,701 INFO L471 AbstractCegarLoop]: Abstraction has 7687 states and 9995 transitions. [2024-11-09 04:38:31,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-09 04:38:31,701 INFO L276 IsEmpty]: Start isEmpty. Operand 7687 states and 9995 transitions. [2024-11-09 04:38:31,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-09 04:38:31,711 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:38:31,711 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:38:31,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 04:38:31,714 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:38:31,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:38:31,715 INFO L85 PathProgramCache]: Analyzing trace with hash 483461430, now seen corresponding path program 1 times [2024-11-09 04:38:31,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:38:31,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009073824] [2024-11-09 04:38:31,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:38:31,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:38:31,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:38:32,300 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-09 04:38:32,300 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:38:32,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009073824] [2024-11-09 04:38:32,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009073824] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:38:32,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:38:32,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:38:32,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702519580] [2024-11-09 04:38:32,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:38:32,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 04:38:32,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:38:32,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 04:38:32,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-09 04:38:32,303 INFO L87 Difference]: Start difference. First operand 7687 states and 9995 transitions. Second operand has 11 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 5 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (7), 6 states have call predecessors, (7), 5 states have call successors, (7) [2024-11-09 04:38:35,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:38:35,508 INFO L93 Difference]: Finished difference Result 21863 states and 29401 transitions. [2024-11-09 04:38:35,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 04:38:35,509 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 5 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (7), 6 states have call predecessors, (7), 5 states have call successors, (7) Word has length 90 [2024-11-09 04:38:35,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:38:35,578 INFO L225 Difference]: With dead ends: 21863 [2024-11-09 04:38:35,578 INFO L226 Difference]: Without dead ends: 14796 [2024-11-09 04:38:35,603 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2024-11-09 04:38:35,606 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 734 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 748 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 04:38:35,607 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [748 Valid, 408 Invalid, 827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 604 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 04:38:35,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14796 states. [2024-11-09 04:38:36,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14796 to 11163. [2024-11-09 04:38:36,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11163 states, 9018 states have (on average 1.2741184298070525) internal successors, (11490), 9063 states have internal predecessors, (11490), 1223 states have call successors, (1223), 897 states have call predecessors, (1223), 921 states have return successors, (1637), 1203 states have call predecessors, (1637), 1223 states have call successors, (1637) [2024-11-09 04:38:37,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11163 states to 11163 states and 14350 transitions. [2024-11-09 04:38:37,035 INFO L78 Accepts]: Start accepts. Automaton has 11163 states and 14350 transitions. Word has length 90 [2024-11-09 04:38:37,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:38:37,036 INFO L471 AbstractCegarLoop]: Abstraction has 11163 states and 14350 transitions. [2024-11-09 04:38:37,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 5 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (7), 6 states have call predecessors, (7), 5 states have call successors, (7) [2024-11-09 04:38:37,036 INFO L276 IsEmpty]: Start isEmpty. Operand 11163 states and 14350 transitions. [2024-11-09 04:38:37,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-09 04:38:37,045 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:38:37,045 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:38:37,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 04:38:37,046 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:38:37,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:38:37,046 INFO L85 PathProgramCache]: Analyzing trace with hash -490027529, now seen corresponding path program 1 times [2024-11-09 04:38:37,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:38:37,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675124595] [2024-11-09 04:38:37,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:38:37,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:38:37,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:38:37,110 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-09 04:38:37,110 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:38:37,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675124595] [2024-11-09 04:38:37,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675124595] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:38:37,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:38:37,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:38:37,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358749152] [2024-11-09 04:38:37,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:38:37,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:38:37,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:38:37,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:38:37,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:38:37,113 INFO L87 Difference]: Start difference. First operand 11163 states and 14350 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 04:38:38,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:38:38,392 INFO L93 Difference]: Finished difference Result 16942 states and 22338 transitions. [2024-11-09 04:38:38,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:38:38,393 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) Word has length 90 [2024-11-09 04:38:38,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:38:38,458 INFO L225 Difference]: With dead ends: 16942 [2024-11-09 04:38:38,458 INFO L226 Difference]: Without dead ends: 11069 [2024-11-09 04:38:38,478 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:38:38,479 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 211 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:38:38,480 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 314 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 04:38:38,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11069 states. [2024-11-09 04:38:39,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11069 to 10961. [2024-11-09 04:38:39,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10961 states, 8834 states have (on average 1.2528865745981435) internal successors, (11068), 8861 states have internal predecessors, (11068), 1223 states have call successors, (1223), 897 states have call predecessors, (1223), 903 states have return successors, (1601), 1203 states have call predecessors, (1601), 1223 states have call successors, (1601) [2024-11-09 04:38:39,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10961 states to 10961 states and 13892 transitions. [2024-11-09 04:38:39,941 INFO L78 Accepts]: Start accepts. Automaton has 10961 states and 13892 transitions. Word has length 90 [2024-11-09 04:38:39,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:38:39,941 INFO L471 AbstractCegarLoop]: Abstraction has 10961 states and 13892 transitions. [2024-11-09 04:38:39,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 04:38:39,942 INFO L276 IsEmpty]: Start isEmpty. Operand 10961 states and 13892 transitions. [2024-11-09 04:38:39,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-09 04:38:39,953 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:38:39,953 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:38:39,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 04:38:39,954 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:38:39,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:38:39,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1452491293, now seen corresponding path program 1 times [2024-11-09 04:38:39,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:38:39,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805472823] [2024-11-09 04:38:39,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:38:39,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:38:39,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:38:40,142 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 04:38:40,143 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:38:40,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805472823] [2024-11-09 04:38:40,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805472823] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:38:40,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:38:40,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 04:38:40,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192078122] [2024-11-09 04:38:40,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:38:40,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 04:38:40,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:38:40,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 04:38:40,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:38:40,146 INFO L87 Difference]: Start difference. First operand 10961 states and 13892 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 04:38:43,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:38:43,175 INFO L93 Difference]: Finished difference Result 18969 states and 24279 transitions. [2024-11-09 04:38:43,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 04:38:43,176 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 91 [2024-11-09 04:38:43,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:38:43,267 INFO L225 Difference]: With dead ends: 18969 [2024-11-09 04:38:43,268 INFO L226 Difference]: Without dead ends: 14375 [2024-11-09 04:38:43,288 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-09 04:38:43,289 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 87 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 04:38:43,289 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 460 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 04:38:43,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14375 states. [2024-11-09 04:38:45,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14375 to 14099. [2024-11-09 04:38:45,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14099 states, 11349 states have (on average 1.2498017446471055) internal successors, (14184), 11346 states have internal predecessors, (14184), 1606 states have call successors, (1606), 1177 states have call predecessors, (1606), 1143 states have return successors, (2155), 1576 states have call predecessors, (2155), 1606 states have call successors, (2155) [2024-11-09 04:38:45,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14099 states to 14099 states and 17945 transitions. [2024-11-09 04:38:45,502 INFO L78 Accepts]: Start accepts. Automaton has 14099 states and 17945 transitions. Word has length 91 [2024-11-09 04:38:45,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:38:45,503 INFO L471 AbstractCegarLoop]: Abstraction has 14099 states and 17945 transitions. [2024-11-09 04:38:45,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 04:38:45,504 INFO L276 IsEmpty]: Start isEmpty. Operand 14099 states and 17945 transitions. [2024-11-09 04:38:45,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-09 04:38:45,519 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:38:45,519 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:38:45,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 04:38:45,520 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:38:45,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:38:45,520 INFO L85 PathProgramCache]: Analyzing trace with hash 511318465, now seen corresponding path program 1 times [2024-11-09 04:38:45,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:38:45,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494369561] [2024-11-09 04:38:45,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:38:45,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:38:45,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:38:45,639 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 04:38:45,639 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:38:45,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494369561] [2024-11-09 04:38:45,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494369561] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:38:45,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:38:45,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 04:38:45,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650497825] [2024-11-09 04:38:45,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:38:45,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:38:45,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:38:45,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:38:45,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:38:45,644 INFO L87 Difference]: Start difference. First operand 14099 states and 17945 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 04:38:47,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:38:47,905 INFO L93 Difference]: Finished difference Result 27623 states and 35568 transitions. [2024-11-09 04:38:47,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:38:47,906 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 91 [2024-11-09 04:38:47,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:38:47,989 INFO L225 Difference]: With dead ends: 27623 [2024-11-09 04:38:47,990 INFO L226 Difference]: Without dead ends: 16927 [2024-11-09 04:38:48,014 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:38:48,015 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 55 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:38:48,015 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 256 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:38:48,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16927 states. [2024-11-09 04:38:49,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16927 to 14868. [2024-11-09 04:38:49,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14868 states, 12022 states have (on average 1.2542838130094827) internal successors, (15079), 12019 states have internal predecessors, (15079), 1654 states have call successors, (1654), 1225 states have call predecessors, (1654), 1191 states have return successors, (2203), 1624 states have call predecessors, (2203), 1654 states have call successors, (2203) [2024-11-09 04:38:49,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14868 states to 14868 states and 18936 transitions. [2024-11-09 04:38:49,837 INFO L78 Accepts]: Start accepts. Automaton has 14868 states and 18936 transitions. Word has length 91 [2024-11-09 04:38:49,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:38:49,838 INFO L471 AbstractCegarLoop]: Abstraction has 14868 states and 18936 transitions. [2024-11-09 04:38:49,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 04:38:49,838 INFO L276 IsEmpty]: Start isEmpty. Operand 14868 states and 18936 transitions. [2024-11-09 04:38:49,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-09 04:38:49,872 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:38:49,872 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:38:49,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 04:38:49,873 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:38:49,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:38:49,874 INFO L85 PathProgramCache]: Analyzing trace with hash 2060180061, now seen corresponding path program 1 times [2024-11-09 04:38:49,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:38:49,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539254032] [2024-11-09 04:38:49,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:38:49,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:38:49,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:38:50,565 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-09 04:38:50,566 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:38:50,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539254032] [2024-11-09 04:38:50,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539254032] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:38:50,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:38:50,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 04:38:50,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72284167] [2024-11-09 04:38:50,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:38:50,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 04:38:50,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:38:50,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 04:38:50,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-09 04:38:50,569 INFO L87 Difference]: Start difference. First operand 14868 states and 18936 transitions. Second operand has 11 states, 7 states have (on average 10.428571428571429) internal successors, (73), 8 states have internal predecessors, (73), 5 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (9), 7 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-09 04:38:53,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:38:53,671 INFO L93 Difference]: Finished difference Result 43305 states and 56520 transitions. [2024-11-09 04:38:53,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 04:38:53,671 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 7 states have (on average 10.428571428571429) internal successors, (73), 8 states have internal predecessors, (73), 5 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (9), 7 states have call predecessors, (9), 5 states have call successors, (9) Word has length 115 [2024-11-09 04:38:53,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:38:53,778 INFO L225 Difference]: With dead ends: 43305 [2024-11-09 04:38:53,778 INFO L226 Difference]: Without dead ends: 31113 [2024-11-09 04:38:53,811 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2024-11-09 04:38:53,812 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 615 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 04:38:53,812 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [627 Valid, 434 Invalid, 825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 630 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 04:38:53,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31113 states. [2024-11-09 04:38:56,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31113 to 22682. [2024-11-09 04:38:56,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22682 states, 18676 states have (on average 1.2384343542514458) internal successors, (23129), 18789 states have internal predecessors, (23129), 2191 states have call successors, (2191), 1728 states have call predecessors, (2191), 1814 states have return successors, (3051), 2165 states have call predecessors, (3051), 2191 states have call successors, (3051) [2024-11-09 04:38:56,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22682 states to 22682 states and 28371 transitions. [2024-11-09 04:38:56,653 INFO L78 Accepts]: Start accepts. Automaton has 22682 states and 28371 transitions. Word has length 115 [2024-11-09 04:38:56,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:38:56,654 INFO L471 AbstractCegarLoop]: Abstraction has 22682 states and 28371 transitions. [2024-11-09 04:38:56,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 7 states have (on average 10.428571428571429) internal successors, (73), 8 states have internal predecessors, (73), 5 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (9), 7 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-09 04:38:56,654 INFO L276 IsEmpty]: Start isEmpty. Operand 22682 states and 28371 transitions. [2024-11-09 04:38:56,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-09 04:38:56,697 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:38:56,698 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:38:56,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 04:38:56,698 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:38:56,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:38:56,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1454806306, now seen corresponding path program 1 times [2024-11-09 04:38:56,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:38:56,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242902626] [2024-11-09 04:38:56,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:38:56,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:38:56,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:38:56,845 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-09 04:38:56,845 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:38:56,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242902626] [2024-11-09 04:38:56,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242902626] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:38:56,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:38:56,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:38:56,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310303657] [2024-11-09 04:38:56,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:38:56,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:38:56,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:38:56,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:38:56,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:38:56,849 INFO L87 Difference]: Start difference. First operand 22682 states and 28371 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-09 04:38:59,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:38:59,512 INFO L93 Difference]: Finished difference Result 32452 states and 41376 transitions. [2024-11-09 04:38:59,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:38:59,512 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 115 [2024-11-09 04:38:59,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:38:59,589 INFO L225 Difference]: With dead ends: 32452 [2024-11-09 04:38:59,589 INFO L226 Difference]: Without dead ends: 21303 [2024-11-09 04:38:59,617 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:38:59,618 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 197 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:38:59,618 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 300 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 04:38:59,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21303 states. [2024-11-09 04:39:01,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21303 to 21198. [2024-11-09 04:39:01,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21198 states, 17373 states have (on average 1.2248316352961492) internal successors, (21279), 17424 states have internal predecessors, (21279), 2106 states have call successors, (2106), 1652 states have call predecessors, (2106), 1718 states have return successors, (2828), 2122 states have call predecessors, (2828), 2106 states have call successors, (2828) [2024-11-09 04:39:01,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21198 states to 21198 states and 26213 transitions. [2024-11-09 04:39:01,812 INFO L78 Accepts]: Start accepts. Automaton has 21198 states and 26213 transitions. Word has length 115 [2024-11-09 04:39:01,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:39:01,813 INFO L471 AbstractCegarLoop]: Abstraction has 21198 states and 26213 transitions. [2024-11-09 04:39:01,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-09 04:39:01,813 INFO L276 IsEmpty]: Start isEmpty. Operand 21198 states and 26213 transitions. [2024-11-09 04:39:01,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-09 04:39:01,843 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:39:01,843 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:39:01,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 04:39:01,844 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:39:01,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:39:01,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1581595615, now seen corresponding path program 1 times [2024-11-09 04:39:01,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:39:01,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621041627] [2024-11-09 04:39:01,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:39:01,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:39:01,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:39:02,001 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 17 proven. 7 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-09 04:39:02,002 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:39:02,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621041627] [2024-11-09 04:39:02,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621041627] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:39:02,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1510961156] [2024-11-09 04:39:02,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:39:02,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:39:02,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:39:02,005 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:39:02,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 04:39:02,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:39:02,202 INFO L255 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 04:39:02,211 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:39:02,556 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-09 04:39:02,556 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:39:02,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1510961156] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:39:02,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 04:39:02,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 8 [2024-11-09 04:39:02,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39415711] [2024-11-09 04:39:02,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:39:02,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 04:39:02,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:39:02,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 04:39:02,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-09 04:39:02,559 INFO L87 Difference]: Start difference. First operand 21198 states and 26213 transitions. Second operand has 6 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-09 04:39:05,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:39:05,697 INFO L93 Difference]: Finished difference Result 38877 states and 48851 transitions. [2024-11-09 04:39:05,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 04:39:05,698 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 116 [2024-11-09 04:39:05,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:39:05,756 INFO L225 Difference]: With dead ends: 38877 [2024-11-09 04:39:05,756 INFO L226 Difference]: Without dead ends: 22152 [2024-11-09 04:39:05,792 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-09 04:39:05,793 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 175 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 04:39:05,793 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 112 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 04:39:05,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22152 states. [2024-11-09 04:39:08,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22152 to 21195. [2024-11-09 04:39:08,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21195 states, 17348 states have (on average 1.205556836522942) internal successors, (20914), 17415 states have internal predecessors, (20914), 2106 states have call successors, (2106), 1658 states have call predecessors, (2106), 1740 states have return successors, (2798), 2122 states have call predecessors, (2798), 2106 states have call successors, (2798) [2024-11-09 04:39:08,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21195 states to 21195 states and 25818 transitions. [2024-11-09 04:39:08,430 INFO L78 Accepts]: Start accepts. Automaton has 21195 states and 25818 transitions. Word has length 116 [2024-11-09 04:39:08,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:39:08,431 INFO L471 AbstractCegarLoop]: Abstraction has 21195 states and 25818 transitions. [2024-11-09 04:39:08,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-09 04:39:08,431 INFO L276 IsEmpty]: Start isEmpty. Operand 21195 states and 25818 transitions. [2024-11-09 04:39:08,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-09 04:39:08,456 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:39:08,456 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:39:08,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 04:39:08,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-09 04:39:08,661 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:39:08,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:39:08,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1966234625, now seen corresponding path program 1 times [2024-11-09 04:39:08,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:39:08,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775497391] [2024-11-09 04:39:08,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:39:08,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:39:08,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:39:08,757 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 24 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-09 04:39:08,757 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:39:08,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775497391] [2024-11-09 04:39:08,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775497391] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:39:08,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1341860767] [2024-11-09 04:39:08,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:39:08,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:39:08,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:39:08,760 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:39:08,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 04:39:08,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:39:08,929 INFO L255 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 04:39:08,934 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:39:09,017 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 04:39:09,017 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:39:09,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1341860767] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:39:09,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 04:39:09,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2024-11-09 04:39:09,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602760503] [2024-11-09 04:39:09,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:39:09,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:39:09,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:39:09,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:39:09,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:39:09,022 INFO L87 Difference]: Start difference. First operand 21195 states and 25818 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-09 04:39:11,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:39:11,718 INFO L93 Difference]: Finished difference Result 35602 states and 44223 transitions. [2024-11-09 04:39:11,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:39:11,718 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 116 [2024-11-09 04:39:11,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:39:11,765 INFO L225 Difference]: With dead ends: 35602 [2024-11-09 04:39:11,765 INFO L226 Difference]: Without dead ends: 18895 [2024-11-09 04:39:11,788 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:39:11,789 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 84 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:39:11,790 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 266 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:39:11,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18895 states. [2024-11-09 04:39:13,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18895 to 18553. [2024-11-09 04:39:13,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18553 states, 15222 states have (on average 1.176717908290632) internal successors, (17912), 15265 states have internal predecessors, (17912), 1836 states have call successors, (1836), 1452 states have call predecessors, (1836), 1494 states have return successors, (2268), 1836 states have call predecessors, (2268), 1836 states have call successors, (2268) [2024-11-09 04:39:13,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18553 states to 18553 states and 22016 transitions. [2024-11-09 04:39:13,626 INFO L78 Accepts]: Start accepts. Automaton has 18553 states and 22016 transitions. Word has length 116 [2024-11-09 04:39:13,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:39:13,626 INFO L471 AbstractCegarLoop]: Abstraction has 18553 states and 22016 transitions. [2024-11-09 04:39:13,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-09 04:39:13,626 INFO L276 IsEmpty]: Start isEmpty. Operand 18553 states and 22016 transitions. [2024-11-09 04:39:13,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-09 04:39:13,642 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:39:13,642 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:39:13,667 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 04:39:13,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-09 04:39:13,843 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:39:13,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:39:13,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1003050369, now seen corresponding path program 1 times [2024-11-09 04:39:13,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:39:13,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418547409] [2024-11-09 04:39:13,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:39:13,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:39:13,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:39:13,953 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-09 04:39:13,953 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:39:13,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418547409] [2024-11-09 04:39:13,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418547409] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:39:13,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:39:13,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 04:39:13,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994940446] [2024-11-09 04:39:13,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:39:13,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:39:13,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:39:13,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:39:13,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:39:13,956 INFO L87 Difference]: Start difference. First operand 18553 states and 22016 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-09 04:39:16,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:39:16,025 INFO L93 Difference]: Finished difference Result 37562 states and 44937 transitions. [2024-11-09 04:39:16,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:39:16,025 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 117 [2024-11-09 04:39:16,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:39:16,085 INFO L225 Difference]: With dead ends: 37562 [2024-11-09 04:39:16,085 INFO L226 Difference]: Without dead ends: 20866 [2024-11-09 04:39:16,107 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:39:16,107 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 46 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:39:16,108 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 255 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:39:16,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20866 states. [2024-11-09 04:39:18,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20866 to 19409. [2024-11-09 04:39:18,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19409 states, 15962 states have (on average 1.1799273274025812) internal successors, (18834), 16005 states have internal predecessors, (18834), 1894 states have call successors, (1894), 1510 states have call predecessors, (1894), 1552 states have return successors, (2326), 1894 states have call predecessors, (2326), 1894 states have call successors, (2326) [2024-11-09 04:39:18,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19409 states to 19409 states and 23054 transitions. [2024-11-09 04:39:18,308 INFO L78 Accepts]: Start accepts. Automaton has 19409 states and 23054 transitions. Word has length 117 [2024-11-09 04:39:18,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:39:18,308 INFO L471 AbstractCegarLoop]: Abstraction has 19409 states and 23054 transitions. [2024-11-09 04:39:18,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-09 04:39:18,309 INFO L276 IsEmpty]: Start isEmpty. Operand 19409 states and 23054 transitions. [2024-11-09 04:39:18,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-09 04:39:18,321 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:39:18,321 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:39:18,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 04:39:18,322 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:39:18,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:39:18,322 INFO L85 PathProgramCache]: Analyzing trace with hash 688890667, now seen corresponding path program 1 times [2024-11-09 04:39:18,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:39:18,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481039764] [2024-11-09 04:39:18,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:39:18,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:39:18,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:39:18,530 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 32 proven. 18 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-09 04:39:18,530 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:39:18,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481039764] [2024-11-09 04:39:18,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481039764] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:39:18,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1985309130] [2024-11-09 04:39:18,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:39:18,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:39:18,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:39:18,533 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:39:18,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 04:39:18,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:39:18,696 INFO L255 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 04:39:18,703 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:39:18,823 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:39:18,827 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:39:18,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1985309130] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:39:18,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 04:39:18,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2024-11-09 04:39:18,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390463511] [2024-11-09 04:39:18,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:39:18,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 04:39:18,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:39:18,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 04:39:18,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:39:18,831 INFO L87 Difference]: Start difference. First operand 19409 states and 23054 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 4 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-09 04:39:21,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:39:21,796 INFO L93 Difference]: Finished difference Result 37654 states and 44839 transitions. [2024-11-09 04:39:21,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 04:39:21,797 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 4 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 118 [2024-11-09 04:39:21,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:39:21,870 INFO L225 Difference]: With dead ends: 37654 [2024-11-09 04:39:21,870 INFO L226 Difference]: Without dead ends: 24685 [2024-11-09 04:39:21,892 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-09 04:39:21,892 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 81 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 04:39:21,893 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 444 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 04:39:21,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24685 states. [2024-11-09 04:39:24,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24685 to 23796. [2024-11-09 04:39:24,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23796 states, 19463 states have (on average 1.17356008837281) internal successors, (22841), 19538 states have internal predecessors, (22841), 2369 states have call successors, (2369), 1873 states have call predecessors, (2369), 1963 states have return successors, (3003), 2385 states have call predecessors, (3003), 2369 states have call successors, (3003) [2024-11-09 04:39:24,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23796 states to 23796 states and 28213 transitions. [2024-11-09 04:39:24,727 INFO L78 Accepts]: Start accepts. Automaton has 23796 states and 28213 transitions. Word has length 118 [2024-11-09 04:39:24,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:39:24,728 INFO L471 AbstractCegarLoop]: Abstraction has 23796 states and 28213 transitions. [2024-11-09 04:39:24,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 4 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-09 04:39:24,728 INFO L276 IsEmpty]: Start isEmpty. Operand 23796 states and 28213 transitions. [2024-11-09 04:39:24,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-09 04:39:24,745 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:39:24,745 INFO L215 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:39:24,773 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 04:39:24,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:39:24,946 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:39:24,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:39:24,947 INFO L85 PathProgramCache]: Analyzing trace with hash -593098078, now seen corresponding path program 1 times [2024-11-09 04:39:24,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:39:24,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355562346] [2024-11-09 04:39:24,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:39:24,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:39:24,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:39:25,700 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 20 proven. 38 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-09 04:39:25,701 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:39:25,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355562346] [2024-11-09 04:39:25,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355562346] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:39:25,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [573235596] [2024-11-09 04:39:25,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:39:25,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:39:25,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:39:25,704 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:39:25,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 04:39:25,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:39:25,892 INFO L255 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 04:39:25,898 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:39:26,005 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-09 04:39:26,006 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:39:26,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [573235596] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:39:26,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 04:39:26,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2024-11-09 04:39:26,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652047618] [2024-11-09 04:39:26,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:39:26,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:39:26,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:39:26,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:39:26,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-09 04:39:26,011 INFO L87 Difference]: Start difference. First operand 23796 states and 28213 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-09 04:39:29,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:39:29,155 INFO L93 Difference]: Finished difference Result 37307 states and 44505 transitions. [2024-11-09 04:39:29,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 04:39:29,156 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2024-11-09 04:39:29,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:39:29,229 INFO L225 Difference]: With dead ends: 37307 [2024-11-09 04:39:29,229 INFO L226 Difference]: Without dead ends: 26559 [2024-11-09 04:39:29,246 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2024-11-09 04:39:29,247 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 72 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:39:29,247 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 377 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:39:29,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26559 states. [2024-11-09 04:39:32,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26559 to 26097. [2024-11-09 04:39:32,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26097 states, 21111 states have (on average 1.1713798493676282) internal successors, (24729), 21203 states have internal predecessors, (24729), 2740 states have call successors, (2740), 2138 states have call predecessors, (2740), 2245 states have return successors, (3574), 2756 states have call predecessors, (3574), 2740 states have call successors, (3574) [2024-11-09 04:39:32,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26097 states to 26097 states and 31043 transitions. [2024-11-09 04:39:32,281 INFO L78 Accepts]: Start accepts. Automaton has 26097 states and 31043 transitions. Word has length 132 [2024-11-09 04:39:32,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:39:32,282 INFO L471 AbstractCegarLoop]: Abstraction has 26097 states and 31043 transitions. [2024-11-09 04:39:32,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-09 04:39:32,282 INFO L276 IsEmpty]: Start isEmpty. Operand 26097 states and 31043 transitions. [2024-11-09 04:39:32,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-09 04:39:32,295 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:39:32,296 INFO L215 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:39:32,320 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 04:39:32,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:39:32,496 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:39:32,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:39:32,497 INFO L85 PathProgramCache]: Analyzing trace with hash -777337954, now seen corresponding path program 1 times [2024-11-09 04:39:32,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:39:32,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244185281] [2024-11-09 04:39:32,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:39:32,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:39:32,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:39:33,011 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 20 proven. 40 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-09 04:39:33,011 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:39:33,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244185281] [2024-11-09 04:39:33,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244185281] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:39:33,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [832673558] [2024-11-09 04:39:33,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:39:33,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:39:33,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:39:33,014 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:39:33,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 04:39:33,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:39:33,162 INFO L255 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 04:39:33,165 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:39:33,312 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 04:39:33,313 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:39:33,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [832673558] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:39:33,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 04:39:33,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2024-11-09 04:39:33,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753861383] [2024-11-09 04:39:33,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:39:33,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 04:39:33,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:39:33,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 04:39:33,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2024-11-09 04:39:33,315 INFO L87 Difference]: Start difference. First operand 26097 states and 31043 transitions. Second operand has 7 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-09 04:39:36,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:39:36,491 INFO L93 Difference]: Finished difference Result 40158 states and 48270 transitions. [2024-11-09 04:39:36,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 04:39:36,491 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 133 [2024-11-09 04:39:36,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:39:36,569 INFO L225 Difference]: With dead ends: 40158 [2024-11-09 04:39:36,569 INFO L226 Difference]: Without dead ends: 27149 [2024-11-09 04:39:36,587 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2024-11-09 04:39:36,588 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 81 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:39:36,588 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 623 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 04:39:36,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27149 states. [2024-11-09 04:39:39,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27149 to 26080. [2024-11-09 04:39:39,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26080 states, 21145 states have (on average 1.1780562780799244) internal successors, (24910), 21237 states have internal predecessors, (24910), 2704 states have call successors, (2704), 2126 states have call predecessors, (2704), 2230 states have return successors, (3522), 2717 states have call predecessors, (3522), 2704 states have call successors, (3522) [2024-11-09 04:39:39,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26080 states to 26080 states and 31136 transitions. [2024-11-09 04:39:39,576 INFO L78 Accepts]: Start accepts. Automaton has 26080 states and 31136 transitions. Word has length 133 [2024-11-09 04:39:39,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:39:39,576 INFO L471 AbstractCegarLoop]: Abstraction has 26080 states and 31136 transitions. [2024-11-09 04:39:39,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-09 04:39:39,577 INFO L276 IsEmpty]: Start isEmpty. Operand 26080 states and 31136 transitions. [2024-11-09 04:39:39,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-09 04:39:39,586 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:39:39,586 INFO L215 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:39:39,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-09 04:39:39,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:39:39,787 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:39:39,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:39:39,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1692966799, now seen corresponding path program 1 times [2024-11-09 04:39:39,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:39:39,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209960589] [2024-11-09 04:39:39,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:39:39,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:39:39,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:39:39,867 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-09 04:39:39,867 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:39:39,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209960589] [2024-11-09 04:39:39,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209960589] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:39:39,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:39:39,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:39:39,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19687184] [2024-11-09 04:39:39,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:39:39,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:39:39,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:39:39,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:39:39,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:39:39,872 INFO L87 Difference]: Start difference. First operand 26080 states and 31136 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-09 04:39:41,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:39:41,703 INFO L93 Difference]: Finished difference Result 40602 states and 49104 transitions. [2024-11-09 04:39:41,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:39:41,703 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 133 [2024-11-09 04:39:41,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:39:41,755 INFO L225 Difference]: With dead ends: 40602 [2024-11-09 04:39:41,755 INFO L226 Difference]: Without dead ends: 15067 [2024-11-09 04:39:41,791 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:39:41,792 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 181 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:39:41,792 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 280 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 04:39:41,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15067 states. [2024-11-09 04:39:43,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15067 to 15035. [2024-11-09 04:39:43,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15035 states, 12266 states have (on average 1.1593021359856515) internal successors, (14220), 12319 states have internal predecessors, (14220), 1501 states have call successors, (1501), 1199 states have call predecessors, (1501), 1267 states have return successors, (1717), 1517 states have call predecessors, (1717), 1501 states have call successors, (1717) [2024-11-09 04:39:43,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15035 states to 15035 states and 17438 transitions. [2024-11-09 04:39:43,546 INFO L78 Accepts]: Start accepts. Automaton has 15035 states and 17438 transitions. Word has length 133 [2024-11-09 04:39:43,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:39:43,546 INFO L471 AbstractCegarLoop]: Abstraction has 15035 states and 17438 transitions. [2024-11-09 04:39:43,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-09 04:39:43,546 INFO L276 IsEmpty]: Start isEmpty. Operand 15035 states and 17438 transitions. [2024-11-09 04:39:43,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-09 04:39:43,552 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:39:43,553 INFO L215 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:39:43,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-09 04:39:43,553 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:39:43,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:39:43,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1207792080, now seen corresponding path program 1 times [2024-11-09 04:39:43,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:39:43,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727639704] [2024-11-09 04:39:43,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:39:43,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:39:43,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:39:44,109 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 18 proven. 38 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-09 04:39:44,109 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:39:44,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727639704] [2024-11-09 04:39:44,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727639704] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:39:44,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1117082238] [2024-11-09 04:39:44,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:39:44,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:39:44,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:39:44,113 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:39:44,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 04:39:44,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:39:44,307 INFO L255 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 04:39:44,313 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:39:44,404 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-09 04:39:44,405 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:39:44,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1117082238] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:39:44,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 04:39:44,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2024-11-09 04:39:44,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940025298] [2024-11-09 04:39:44,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:39:44,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:39:44,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:39:44,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:39:44,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-09 04:39:44,407 INFO L87 Difference]: Start difference. First operand 15035 states and 17438 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-09 04:39:46,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:39:46,516 INFO L93 Difference]: Finished difference Result 28865 states and 33645 transitions. [2024-11-09 04:39:46,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 04:39:46,516 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 133 [2024-11-09 04:39:46,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:39:46,575 INFO L225 Difference]: With dead ends: 28865 [2024-11-09 04:39:46,575 INFO L226 Difference]: Without dead ends: 19339 [2024-11-09 04:39:46,590 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2024-11-09 04:39:46,591 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 80 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:39:46,591 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 381 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:39:46,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19339 states. [2024-11-09 04:39:48,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19339 to 18217. [2024-11-09 04:39:48,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18217 states, 14757 states have (on average 1.1538930676966863) internal successors, (17028), 14836 states have internal predecessors, (17028), 1876 states have call successors, (1876), 1484 states have call predecessors, (1876), 1583 states have return successors, (2344), 1897 states have call predecessors, (2344), 1876 states have call successors, (2344) [2024-11-09 04:39:48,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18217 states to 18217 states and 21248 transitions. [2024-11-09 04:39:48,572 INFO L78 Accepts]: Start accepts. Automaton has 18217 states and 21248 transitions. Word has length 133 [2024-11-09 04:39:48,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:39:48,573 INFO L471 AbstractCegarLoop]: Abstraction has 18217 states and 21248 transitions. [2024-11-09 04:39:48,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-09 04:39:48,573 INFO L276 IsEmpty]: Start isEmpty. Operand 18217 states and 21248 transitions. [2024-11-09 04:39:48,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-09 04:39:48,580 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:39:48,580 INFO L215 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:39:48,598 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 04:39:48,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:39:48,781 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:39:48,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:39:48,782 INFO L85 PathProgramCache]: Analyzing trace with hash 748813169, now seen corresponding path program 1 times [2024-11-09 04:39:48,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:39:48,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735064442] [2024-11-09 04:39:48,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:39:48,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:39:48,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:39:49,354 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 18 proven. 40 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-09 04:39:49,354 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:39:49,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735064442] [2024-11-09 04:39:49,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735064442] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:39:49,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2131058303] [2024-11-09 04:39:49,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:39:49,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:39:49,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:39:49,358 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:39:49,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 04:39:49,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:39:49,542 INFO L255 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 04:39:49,547 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:39:49,772 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 04:39:49,772 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:39:49,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2131058303] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:39:49,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 04:39:49,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [12] total 18 [2024-11-09 04:39:49,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229795277] [2024-11-09 04:39:49,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:39:49,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 04:39:49,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:39:49,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 04:39:49,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2024-11-09 04:39:49,776 INFO L87 Difference]: Start difference. First operand 18217 states and 21248 transitions. Second operand has 8 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-09 04:39:52,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:39:52,100 INFO L93 Difference]: Finished difference Result 28103 states and 33057 transitions. [2024-11-09 04:39:52,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 04:39:52,101 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 134 [2024-11-09 04:39:52,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:39:52,159 INFO L225 Difference]: With dead ends: 28103 [2024-11-09 04:39:52,159 INFO L226 Difference]: Without dead ends: 18637 [2024-11-09 04:39:52,172 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=314, Unknown=0, NotChecked=0, Total=380 [2024-11-09 04:39:52,173 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 99 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 670 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:39:52,173 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 670 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 04:39:52,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18637 states. [2024-11-09 04:39:53,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18637 to 18246. [2024-11-09 04:39:53,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18246 states, 14782 states have (on average 1.1539033960221892) internal successors, (17057), 14861 states have internal predecessors, (17057), 1878 states have call successors, (1878), 1486 states have call predecessors, (1878), 1585 states have return successors, (2346), 1899 states have call predecessors, (2346), 1878 states have call successors, (2346) [2024-11-09 04:39:54,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18246 states to 18246 states and 21281 transitions. [2024-11-09 04:39:54,062 INFO L78 Accepts]: Start accepts. Automaton has 18246 states and 21281 transitions. Word has length 134 [2024-11-09 04:39:54,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:39:54,062 INFO L471 AbstractCegarLoop]: Abstraction has 18246 states and 21281 transitions. [2024-11-09 04:39:54,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-09 04:39:54,063 INFO L276 IsEmpty]: Start isEmpty. Operand 18246 states and 21281 transitions. [2024-11-09 04:39:54,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-09 04:39:54,068 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:39:54,068 INFO L215 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:39:54,085 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-09 04:39:54,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:39:54,269 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:39:54,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:39:54,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1631664132, now seen corresponding path program 1 times [2024-11-09 04:39:54,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:39:54,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107936590] [2024-11-09 04:39:54,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:39:54,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:39:54,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:39:55,120 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 25 proven. 27 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-09 04:39:55,120 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:39:55,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107936590] [2024-11-09 04:39:55,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107936590] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:39:55,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1063782395] [2024-11-09 04:39:55,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:39:55,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:39:55,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:39:55,123 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:39:55,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 04:39:55,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:39:55,289 INFO L255 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-09 04:39:55,293 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:39:55,785 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 04:39:55,785 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:39:55,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1063782395] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:39:55,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 04:39:55,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [19] total 23 [2024-11-09 04:39:55,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090262635] [2024-11-09 04:39:55,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:39:55,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 04:39:55,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:39:55,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 04:39:55,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=435, Unknown=0, NotChecked=0, Total=506 [2024-11-09 04:39:55,788 INFO L87 Difference]: Start difference. First operand 18246 states and 21281 transitions. Second operand has 9 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 3 states have call successors, (15), 5 states have call predecessors, (15), 6 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-09 04:39:58,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:39:58,881 INFO L93 Difference]: Finished difference Result 35334 states and 41590 transitions. [2024-11-09 04:39:58,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 04:39:58,882 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 3 states have call successors, (15), 5 states have call predecessors, (15), 6 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 135 [2024-11-09 04:39:58,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:39:58,945 INFO L225 Difference]: With dead ends: 35334 [2024-11-09 04:39:58,945 INFO L226 Difference]: Without dead ends: 24233 [2024-11-09 04:39:58,962 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=148, Invalid=664, Unknown=0, NotChecked=0, Total=812 [2024-11-09 04:39:58,963 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 377 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 04:39:58,963 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 249 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 04:39:58,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24233 states. [2024-11-09 04:40:01,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24233 to 22174. [2024-11-09 04:40:01,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22174 states, 17972 states have (on average 1.1384375695526374) internal successors, (20460), 18078 states have internal predecessors, (20460), 2265 states have call successors, (2265), 1795 states have call predecessors, (2265), 1936 states have return successors, (2686), 2301 states have call predecessors, (2686), 2265 states have call successors, (2686) [2024-11-09 04:40:01,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22174 states to 22174 states and 25411 transitions. [2024-11-09 04:40:01,142 INFO L78 Accepts]: Start accepts. Automaton has 22174 states and 25411 transitions. Word has length 135 [2024-11-09 04:40:01,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:40:01,143 INFO L471 AbstractCegarLoop]: Abstraction has 22174 states and 25411 transitions. [2024-11-09 04:40:01,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 3 states have call successors, (15), 5 states have call predecessors, (15), 6 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-09 04:40:01,143 INFO L276 IsEmpty]: Start isEmpty. Operand 22174 states and 25411 transitions. [2024-11-09 04:40:01,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-09 04:40:01,149 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:40:01,149 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:40:01,167 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-09 04:40:01,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:40:01,350 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:40:01,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:40:01,350 INFO L85 PathProgramCache]: Analyzing trace with hash 925826006, now seen corresponding path program 1 times [2024-11-09 04:40:01,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:40:01,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619652757] [2024-11-09 04:40:01,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:40:01,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:40:01,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:40:01,426 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 47 proven. 10 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-11-09 04:40:01,426 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:40:01,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619652757] [2024-11-09 04:40:01,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619652757] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:40:01,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2020276667] [2024-11-09 04:40:01,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:40:01,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:40:01,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:40:01,429 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:40:01,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 04:40:01,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:40:01,600 INFO L255 TraceCheckSpWp]: Trace formula consists of 539 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 04:40:01,603 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:40:01,676 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-09 04:40:01,677 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:40:01,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2020276667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:40:01,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 04:40:01,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-09 04:40:01,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802473035] [2024-11-09 04:40:01,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:40:01,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:40:01,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:40:01,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:40:01,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:40:01,679 INFO L87 Difference]: Start difference. First operand 22174 states and 25411 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 04:40:04,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:40:04,101 INFO L93 Difference]: Finished difference Result 34538 states and 39918 transitions. [2024-11-09 04:40:04,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:40:04,101 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 145 [2024-11-09 04:40:04,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:40:04,165 INFO L225 Difference]: With dead ends: 34538 [2024-11-09 04:40:04,165 INFO L226 Difference]: Without dead ends: 19096 [2024-11-09 04:40:04,185 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:40:04,186 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 77 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 04:40:04,186 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 128 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 04:40:04,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19096 states. [2024-11-09 04:40:05,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19096 to 9873. [2024-11-09 04:40:05,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9873 states, 8054 states have (on average 1.1288800595977153) internal successors, (9092), 8075 states have internal predecessors, (9092), 985 states have call successors, (985), 793 states have call predecessors, (985), 833 states have return successors, (1093), 1005 states have call predecessors, (1093), 985 states have call successors, (1093) [2024-11-09 04:40:05,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9873 states to 9873 states and 11170 transitions. [2024-11-09 04:40:05,515 INFO L78 Accepts]: Start accepts. Automaton has 9873 states and 11170 transitions. Word has length 145 [2024-11-09 04:40:05,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:40:05,515 INFO L471 AbstractCegarLoop]: Abstraction has 9873 states and 11170 transitions. [2024-11-09 04:40:05,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 04:40:05,516 INFO L276 IsEmpty]: Start isEmpty. Operand 9873 states and 11170 transitions. [2024-11-09 04:40:05,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-09 04:40:05,520 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:40:05,521 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:40:05,536 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-09 04:40:05,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:40:05,721 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:40:05,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:40:05,722 INFO L85 PathProgramCache]: Analyzing trace with hash 2084763381, now seen corresponding path program 2 times [2024-11-09 04:40:05,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:40:05,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409524271] [2024-11-09 04:40:05,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:40:05,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:40:05,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 04:40:05,740 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 04:40:05,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 04:40:05,826 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 04:40:05,827 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 04:40:05,828 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 04:40:05,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-09 04:40:05,834 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:40:06,025 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 04:40:06,028 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 04:40:06 BoogieIcfgContainer [2024-11-09 04:40:06,028 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 04:40:06,029 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 04:40:06,029 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 04:40:06,029 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 04:40:06,033 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:38:14" (3/4) ... [2024-11-09 04:40:06,034 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-09 04:40:06,186 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 04:40:06,186 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 04:40:06,187 INFO L158 Benchmark]: Toolchain (without parser) took 113826.01ms. Allocated memory was 167.8MB in the beginning and 6.5GB in the end (delta: 6.3GB). Free memory was 135.6MB in the beginning and 4.9GB in the end (delta: -4.8GB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. [2024-11-09 04:40:06,187 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 111.1MB. Free memory was 80.0MB in the beginning and 79.9MB in the end (delta: 31.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 04:40:06,188 INFO L158 Benchmark]: CACSL2BoogieTranslator took 533.04ms. Allocated memory is still 167.8MB. Free memory was 135.6MB in the beginning and 118.7MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-09 04:40:06,188 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.47ms. Allocated memory is still 167.8MB. Free memory was 118.7MB in the beginning and 116.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 04:40:06,191 INFO L158 Benchmark]: Boogie Preprocessor took 40.23ms. Allocated memory is still 167.8MB. Free memory was 116.7MB in the beginning and 114.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 04:40:06,192 INFO L158 Benchmark]: RCFGBuilder took 1133.12ms. Allocated memory is still 167.8MB. Free memory was 114.6MB in the beginning and 64.3MB in the end (delta: 50.3MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-11-09 04:40:06,192 INFO L158 Benchmark]: TraceAbstraction took 111905.51ms. Allocated memory was 167.8MB in the beginning and 6.5GB in the end (delta: 6.3GB). Free memory was 63.5MB in the beginning and 4.9GB in the end (delta: -4.8GB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. [2024-11-09 04:40:06,192 INFO L158 Benchmark]: Witness Printer took 157.76ms. Allocated memory is still 6.5GB. Free memory was 4.9GB in the beginning and 4.9GB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-09 04:40:06,194 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 111.1MB. Free memory was 80.0MB in the beginning and 79.9MB in the end (delta: 31.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 533.04ms. Allocated memory is still 167.8MB. Free memory was 135.6MB in the beginning and 118.7MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.47ms. Allocated memory is still 167.8MB. Free memory was 118.7MB in the beginning and 116.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.23ms. Allocated memory is still 167.8MB. Free memory was 116.7MB in the beginning and 114.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1133.12ms. Allocated memory is still 167.8MB. Free memory was 114.6MB in the beginning and 64.3MB in the end (delta: 50.3MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * TraceAbstraction took 111905.51ms. Allocated memory was 167.8MB in the beginning and 6.5GB in the end (delta: 6.3GB). Free memory was 63.5MB in the beginning and 4.9GB in the end (delta: -4.8GB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. * Witness Printer took 157.76ms. Allocated memory is still 6.5GB. Free memory was 4.9GB in the beginning and 4.9GB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 21]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L25] int m_pc = 0; [L26] int t1_pc = 0; [L27] int t2_pc = 0; [L28] int t3_pc = 0; [L29] int m_st ; [L30] int t1_st ; [L31] int t2_st ; [L32] int t3_st ; [L33] int m_i ; [L34] int t1_i ; [L35] int t2_i ; [L36] int t3_i ; [L37] int M_E = 2; [L38] int T1_E = 2; [L39] int T2_E = 2; [L40] int T3_E = 2; [L41] int E_1 = 2; [L42] int E_2 = 2; [L43] int E_3 = 2; [L697] int __retres1 ; [L701] CALL init_model() [L610] m_i = 1 [L611] t1_i = 1 [L612] t2_i = 1 [L613] t3_i = 1 [L701] RET init_model() [L702] CALL start_simulation() [L638] int kernel_st ; [L639] int tmp ; [L640] int tmp___0 ; [L644] kernel_st = 0 VAL [E_1=2, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, t3_i=1, t3_pc=0, t3_st=0] [L645] FCALL update_channels() VAL [E_1=2, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, t3_i=1, t3_pc=0, t3_st=0] [L646] CALL init_threads() [L281] COND TRUE m_i == 1 [L282] m_st = 0 [L286] COND TRUE t1_i == 1 [L287] t1_st = 0 [L291] COND TRUE t2_i == 1 [L292] t2_st = 0 [L296] COND TRUE t3_i == 1 [L297] t3_st = 0 [L646] RET init_threads() [L647] CALL fire_delta_events() VAL [E_1=2, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(E_1)=2, \old(E_2)=2, \old(E_3)=2, \old(M_E)=2, \old(T1_E)=2, \old(T2_E)=2, \old(T3_E)=2, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, t3_i=1, t3_pc=0, t3_st=0] [L418] COND FALSE !(M_E == 0) [L423] COND FALSE !(T1_E == 0) [L428] COND FALSE !(T2_E == 0) [L433] COND FALSE !(T3_E == 0) [L438] COND FALSE !(E_1 == 0) [L443] COND FALSE !(E_2 == 0) [L448] COND FALSE !(E_3 == 0) [L647] RET fire_delta_events() VAL [E_1=2, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, t3_i=1, t3_pc=0, t3_st=0] [L648] CALL activate_threads() VAL [E_1=2, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=0, \old(t1_st)=0, \old(t2_st)=0, \old(t3_st)=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, t3_i=1, t3_pc=0, t3_st=0] [L501] int tmp ; [L502] int tmp___0 ; [L503] int tmp___1 ; [L504] int tmp___2 ; [L508] CALL, EXPR is_master_triggered() [L194] int __retres1 ; VAL [E_1=2, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=0, \old(t1_st)=0, \old(t2_st)=0, \old(t3_st)=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, t3_i=1, t3_pc=0, t3_st=0] [L197] COND FALSE !(m_pc == 1) VAL [E_1=2, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=0, \old(t1_st)=0, \old(t2_st)=0, \old(t3_st)=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, t3_i=1, t3_pc=0, t3_st=0] [L207] __retres1 = 0 VAL [E_1=2, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=0, \old(t1_st)=0, \old(t2_st)=0, \old(t3_st)=0, __retres1=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, t3_i=1, t3_pc=0, t3_st=0] [L209] return (__retres1); [L508] RET, EXPR is_master_triggered() [L508] tmp = is_master_triggered() [L510] COND FALSE !(\read(tmp)) [L516] CALL, EXPR is_transmit1_triggered() [L213] int __retres1 ; VAL [E_1=2, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=0, \old(t1_st)=0, \old(t2_st)=0, \old(t3_st)=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, t3_i=1, t3_pc=0, t3_st=0] [L216] COND FALSE !(t1_pc == 1) VAL [E_1=2, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=0, \old(t1_st)=0, \old(t2_st)=0, \old(t3_st)=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, t3_i=1, t3_pc=0, t3_st=0] [L226] __retres1 = 0 VAL [E_1=2, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=0, \old(t1_st)=0, \old(t2_st)=0, \old(t3_st)=0, __retres1=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, t3_i=1, t3_pc=0, t3_st=0] [L228] return (__retres1); [L516] RET, EXPR is_transmit1_triggered() [L516] tmp___0 = is_transmit1_triggered() [L518] COND FALSE !(\read(tmp___0)) [L524] CALL, EXPR is_transmit2_triggered() [L232] int __retres1 ; VAL [E_1=2, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=0, \old(t1_st)=0, \old(t2_st)=0, \old(t3_st)=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, t3_i=1, t3_pc=0, t3_st=0] [L235] COND FALSE !(t2_pc == 1) VAL [E_1=2, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=0, \old(t1_st)=0, \old(t2_st)=0, \old(t3_st)=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, t3_i=1, t3_pc=0, t3_st=0] [L245] __retres1 = 0 VAL [E_1=2, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=0, \old(t1_st)=0, \old(t2_st)=0, \old(t3_st)=0, __retres1=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, t3_i=1, t3_pc=0, t3_st=0] [L247] return (__retres1); [L524] RET, EXPR is_transmit2_triggered() [L524] tmp___1 = is_transmit2_triggered() [L526] COND FALSE !(\read(tmp___1)) [L532] CALL, EXPR is_transmit3_triggered() [L251] int __retres1 ; VAL [E_1=2, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=0, \old(t1_st)=0, \old(t2_st)=0, \old(t3_st)=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, t3_i=1, t3_pc=0, t3_st=0] [L254] COND FALSE !(t3_pc == 1) VAL [E_1=2, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=0, \old(t1_st)=0, \old(t2_st)=0, \old(t3_st)=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, t3_i=1, t3_pc=0, t3_st=0] [L264] __retres1 = 0 VAL [E_1=2, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=0, \old(t1_st)=0, \old(t2_st)=0, \old(t3_st)=0, __retres1=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, t3_i=1, t3_pc=0, t3_st=0] [L266] return (__retres1); [L532] RET, EXPR is_transmit3_triggered() [L532] tmp___2 = is_transmit3_triggered() [L534] COND FALSE !(\read(tmp___2)) [L648] RET activate_threads() VAL [E_1=2, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, t3_i=1, t3_pc=0, t3_st=0] [L649] CALL reset_delta_events() VAL [E_1=2, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(E_1)=2, \old(E_2)=2, \old(E_3)=2, \old(M_E)=2, \old(T1_E)=2, \old(T2_E)=2, \old(T3_E)=2, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, t3_i=1, t3_pc=0, t3_st=0] [L461] COND FALSE !(M_E == 1) [L466] COND FALSE !(T1_E == 1) [L471] COND FALSE !(T2_E == 1) [L476] COND FALSE !(T3_E == 1) [L481] COND FALSE !(E_1 == 1) [L486] COND FALSE !(E_2 == 1) [L491] COND FALSE !(E_3 == 1) [L649] RET reset_delta_events() VAL [E_1=2, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, t3_i=1, t3_pc=0, t3_st=0] [L652] COND TRUE 1 [L655] kernel_st = 1 [L656] CALL eval() [L337] int tmp ; VAL [E_1=2, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, t3_i=1, t3_pc=0, t3_st=0] [L341] COND TRUE 1 VAL [E_1=2, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, t3_i=1, t3_pc=0, t3_st=0] [L344] CALL, EXPR exists_runnable_thread() VAL [E_1=2, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, t3_i=1, t3_pc=0, t3_st=0] [L306] int __retres1 ; [L309] COND TRUE m_st == 0 [L310] __retres1 = 1 [L332] return (__retres1); [L344] RET, EXPR exists_runnable_thread() VAL [E_1=2, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, t3_i=1, t3_pc=0, t3_st=0] [L344] tmp = exists_runnable_thread() [L346] COND TRUE \read(tmp) VAL [E_1=2, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, t3_i=1, t3_pc=0, t3_st=0] [L351] COND TRUE m_st == 0 [L352] int tmp_ndt_1; [L353] tmp_ndt_1 = __VERIFIER_nondet_int() [L354] COND FALSE !(\read(tmp_ndt_1)) VAL [E_1=2, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, t3_i=1, t3_pc=0, t3_st=0] [L365] COND TRUE t1_st == 0 [L366] int tmp_ndt_2; [L367] tmp_ndt_2 = __VERIFIER_nondet_int() [L368] COND TRUE \read(tmp_ndt_2) [L370] t1_st = 1 [L371] CALL transmit1() [L94] COND TRUE t1_pc == 0 VAL [E_1=2, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=1, t2_i=1, t2_pc=0, t2_st=0, t3_i=1, t3_pc=0, t3_st=0] [L105] COND TRUE 1 [L107] t1_pc = 1 [L108] t1_st = 2 [L371] RET transmit1() [L379] COND TRUE t2_st == 0 [L380] int tmp_ndt_3; [L381] tmp_ndt_3 = __VERIFIER_nondet_int() [L382] COND TRUE \read(tmp_ndt_3) [L384] t2_st = 1 [L385] CALL transmit2() [L129] COND TRUE t2_pc == 0 VAL [E_1=2, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=0, t2_st=1, t3_i=1, t3_pc=0, t3_st=0] [L140] COND TRUE 1 [L142] t2_pc = 1 [L143] t2_st = 2 [L385] RET transmit2() [L393] COND TRUE t3_st == 0 [L394] int tmp_ndt_4; [L395] tmp_ndt_4 = __VERIFIER_nondet_int() [L396] COND TRUE \read(tmp_ndt_4) [L398] t3_st = 1 [L399] CALL transmit3() [L164] COND TRUE t3_pc == 0 VAL [E_1=2, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=1, t2_st=2, t3_i=1, t3_pc=0, t3_st=1] [L175] COND TRUE 1 [L177] t3_pc = 1 [L178] t3_st = 2 [L399] RET transmit3() [L341] COND TRUE 1 VAL [E_1=2, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=1, t2_st=2, t3_i=1, t3_pc=1, t3_st=2] [L344] CALL, EXPR exists_runnable_thread() VAL [E_1=2, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=1, t2_st=2, t3_i=1, t3_pc=1, t3_st=2] [L306] int __retres1 ; [L309] COND TRUE m_st == 0 [L310] __retres1 = 1 [L332] return (__retres1); [L344] RET, EXPR exists_runnable_thread() VAL [E_1=2, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=1, t2_st=2, t3_i=1, t3_pc=1, t3_st=2] [L344] tmp = exists_runnable_thread() [L346] COND TRUE \read(tmp) VAL [E_1=2, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=1, t2_st=2, t3_i=1, t3_pc=1, t3_st=2] [L351] COND TRUE m_st == 0 [L352] int tmp_ndt_1; [L353] tmp_ndt_1 = __VERIFIER_nondet_int() [L354] COND TRUE \read(tmp_ndt_1) [L356] m_st = 1 [L357] CALL master() [L53] COND TRUE m_pc == 0 VAL [E_1=2, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=1, t2_st=2, t3_i=1, t3_pc=1, t3_st=2] [L64] COND TRUE 1 [L67] E_1 = 1 VAL [E_1=1, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=1, t2_st=2, t3_i=1, t3_pc=1, t3_st=2] [L68] CALL immediate_notify() VAL [E_1=1, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=1, \old(t1_st)=2, \old(t2_st)=2, \old(t3_st)=2, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=1, t2_st=2, t3_i=1, t3_pc=1, t3_st=2] [L548] CALL activate_threads() VAL [E_1=1, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=1, \old(t1_st)=2, \old(t2_st)=2, \old(t3_st)=2, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=1, t2_st=2, t3_i=1, t3_pc=1, t3_st=2] [L501] int tmp ; [L502] int tmp___0 ; [L503] int tmp___1 ; [L504] int tmp___2 ; [L508] CALL, EXPR is_master_triggered() [L194] int __retres1 ; VAL [E_1=1, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=1, \old(t1_st)=2, \old(t2_st)=2, \old(t3_st)=2, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=1, t2_st=2, t3_i=1, t3_pc=1, t3_st=2] [L197] COND FALSE !(m_pc == 1) VAL [E_1=1, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=1, \old(t1_st)=2, \old(t2_st)=2, \old(t3_st)=2, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=1, t2_st=2, t3_i=1, t3_pc=1, t3_st=2] [L207] __retres1 = 0 VAL [E_1=1, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=1, \old(t1_st)=2, \old(t2_st)=2, \old(t3_st)=2, __retres1=0, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=1, t2_st=2, t3_i=1, t3_pc=1, t3_st=2] [L209] return (__retres1); [L508] RET, EXPR is_master_triggered() [L508] tmp = is_master_triggered() [L510] COND FALSE !(\read(tmp)) [L516] CALL, EXPR is_transmit1_triggered() [L213] int __retres1 ; VAL [E_1=1, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=1, \old(t1_st)=2, \old(t2_st)=2, \old(t3_st)=2, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=1, t2_st=2, t3_i=1, t3_pc=1, t3_st=2] [L216] COND TRUE t1_pc == 1 VAL [E_1=1, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=1, \old(t1_st)=2, \old(t2_st)=2, \old(t3_st)=2, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=1, t2_st=2, t3_i=1, t3_pc=1, t3_st=2] [L217] COND TRUE E_1 == 1 [L218] __retres1 = 1 VAL [E_1=1, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=1, \old(t1_st)=2, \old(t2_st)=2, \old(t3_st)=2, __retres1=1, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=1, t2_st=2, t3_i=1, t3_pc=1, t3_st=2] [L228] return (__retres1); [L516] RET, EXPR is_transmit1_triggered() [L516] tmp___0 = is_transmit1_triggered() [L518] COND TRUE \read(tmp___0) [L519] t1_st = 0 [L524] CALL, EXPR is_transmit2_triggered() [L232] int __retres1 ; VAL [E_1=1, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=1, \old(t1_st)=2, \old(t2_st)=2, \old(t3_st)=2, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=0, t2_i=1, t2_pc=1, t2_st=2, t3_i=1, t3_pc=1, t3_st=2] [L235] COND TRUE t2_pc == 1 VAL [E_1=1, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=1, \old(t1_st)=2, \old(t2_st)=2, \old(t3_st)=2, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=0, t2_i=1, t2_pc=1, t2_st=2, t3_i=1, t3_pc=1, t3_st=2] [L236] COND FALSE !(E_2 == 1) VAL [E_1=1, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=1, \old(t1_st)=2, \old(t2_st)=2, \old(t3_st)=2, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=0, t2_i=1, t2_pc=1, t2_st=2, t3_i=1, t3_pc=1, t3_st=2] [L245] __retres1 = 0 VAL [E_1=1, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=1, \old(t1_st)=2, \old(t2_st)=2, \old(t3_st)=2, __retres1=0, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=0, t2_i=1, t2_pc=1, t2_st=2, t3_i=1, t3_pc=1, t3_st=2] [L247] return (__retres1); [L524] RET, EXPR is_transmit2_triggered() [L524] tmp___1 = is_transmit2_triggered() [L526] COND FALSE !(\read(tmp___1)) [L532] CALL, EXPR is_transmit3_triggered() [L251] int __retres1 ; VAL [E_1=1, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=1, \old(t1_st)=2, \old(t2_st)=2, \old(t3_st)=2, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=0, t2_i=1, t2_pc=1, t2_st=2, t3_i=1, t3_pc=1, t3_st=2] [L254] COND TRUE t3_pc == 1 VAL [E_1=1, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=1, \old(t1_st)=2, \old(t2_st)=2, \old(t3_st)=2, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=0, t2_i=1, t2_pc=1, t2_st=2, t3_i=1, t3_pc=1, t3_st=2] [L255] COND FALSE !(E_3 == 1) VAL [E_1=1, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=1, \old(t1_st)=2, \old(t2_st)=2, \old(t3_st)=2, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=0, t2_i=1, t2_pc=1, t2_st=2, t3_i=1, t3_pc=1, t3_st=2] [L264] __retres1 = 0 VAL [E_1=1, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=1, \old(t1_st)=2, \old(t2_st)=2, \old(t3_st)=2, __retres1=0, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=0, t2_i=1, t2_pc=1, t2_st=2, t3_i=1, t3_pc=1, t3_st=2] [L266] return (__retres1); [L532] RET, EXPR is_transmit3_triggered() [L532] tmp___2 = is_transmit3_triggered() [L534] COND FALSE !(\read(tmp___2)) [L548] RET activate_threads() VAL [E_1=1, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=1, \old(t1_st)=2, \old(t2_st)=2, \old(t3_st)=2, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=0, t2_i=1, t2_pc=1, t2_st=2, t3_i=1, t3_pc=1, t3_st=2] [L68] RET immediate_notify() VAL [E_1=1, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=0, t2_i=1, t2_pc=1, t2_st=2, t3_i=1, t3_pc=1, t3_st=2] [L69] E_1 = 2 VAL [E_1=2, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=0, t2_i=1, t2_pc=1, t2_st=2, t3_i=1, t3_pc=1, t3_st=2] [L72] COND TRUE 1 [L74] m_pc = 1 [L75] m_st = 2 VAL [E_1=2, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=0, t2_i=1, t2_pc=1, t2_st=2, t3_i=1, t3_pc=1, t3_st=2] [L357] RET master() [L365] COND TRUE t1_st == 0 [L366] int tmp_ndt_2; [L367] tmp_ndt_2 = __VERIFIER_nondet_int() [L368] COND TRUE \read(tmp_ndt_2) [L370] t1_st = 1 [L371] CALL transmit1() [L94] COND FALSE !(t1_pc == 0) VAL [E_1=2, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=1, t2_i=1, t2_pc=1, t2_st=2, t3_i=1, t3_pc=1, t3_st=2] [L97] COND TRUE t1_pc == 1 [L113] E_2 = 1 VAL [E_1=2, E_2=1, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=1, t2_i=1, t2_pc=1, t2_st=2, t3_i=1, t3_pc=1, t3_st=2] [L114] CALL immediate_notify() VAL [E_1=2, E_2=1, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=2, \old(t1_st)=1, \old(t2_st)=2, \old(t3_st)=2, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=1, t2_i=1, t2_pc=1, t2_st=2, t3_i=1, t3_pc=1, t3_st=2] [L548] CALL activate_threads() VAL [E_1=2, E_2=1, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=2, \old(t1_st)=1, \old(t2_st)=2, \old(t3_st)=2, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=1, t2_i=1, t2_pc=1, t2_st=2, t3_i=1, t3_pc=1, t3_st=2] [L501] int tmp ; [L502] int tmp___0 ; [L503] int tmp___1 ; [L504] int tmp___2 ; [L508] CALL, EXPR is_master_triggered() [L194] int __retres1 ; VAL [E_1=2, E_2=1, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=2, \old(t1_st)=1, \old(t2_st)=2, \old(t3_st)=2, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=1, t2_i=1, t2_pc=1, t2_st=2, t3_i=1, t3_pc=1, t3_st=2] [L197] COND TRUE m_pc == 1 VAL [E_1=2, E_2=1, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=2, \old(t1_st)=1, \old(t2_st)=2, \old(t3_st)=2, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=1, t2_i=1, t2_pc=1, t2_st=2, t3_i=1, t3_pc=1, t3_st=2] [L198] COND FALSE !(M_E == 1) VAL [E_1=2, E_2=1, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=2, \old(t1_st)=1, \old(t2_st)=2, \old(t3_st)=2, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=1, t2_i=1, t2_pc=1, t2_st=2, t3_i=1, t3_pc=1, t3_st=2] [L207] __retres1 = 0 VAL [E_1=2, E_2=1, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=2, \old(t1_st)=1, \old(t2_st)=2, \old(t3_st)=2, __retres1=0, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=1, t2_i=1, t2_pc=1, t2_st=2, t3_i=1, t3_pc=1, t3_st=2] [L209] return (__retres1); [L508] RET, EXPR is_master_triggered() [L508] tmp = is_master_triggered() [L510] COND FALSE !(\read(tmp)) [L516] CALL, EXPR is_transmit1_triggered() [L213] int __retres1 ; VAL [E_1=2, E_2=1, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=2, \old(t1_st)=1, \old(t2_st)=2, \old(t3_st)=2, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=1, t2_i=1, t2_pc=1, t2_st=2, t3_i=1, t3_pc=1, t3_st=2] [L216] COND TRUE t1_pc == 1 VAL [E_1=2, E_2=1, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=2, \old(t1_st)=1, \old(t2_st)=2, \old(t3_st)=2, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=1, t2_i=1, t2_pc=1, t2_st=2, t3_i=1, t3_pc=1, t3_st=2] [L217] COND FALSE !(E_1 == 1) VAL [E_1=2, E_2=1, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=2, \old(t1_st)=1, \old(t2_st)=2, \old(t3_st)=2, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=1, t2_i=1, t2_pc=1, t2_st=2, t3_i=1, t3_pc=1, t3_st=2] [L226] __retres1 = 0 VAL [E_1=2, E_2=1, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=2, \old(t1_st)=1, \old(t2_st)=2, \old(t3_st)=2, __retres1=0, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=1, t2_i=1, t2_pc=1, t2_st=2, t3_i=1, t3_pc=1, t3_st=2] [L228] return (__retres1); [L516] RET, EXPR is_transmit1_triggered() [L516] tmp___0 = is_transmit1_triggered() [L518] COND FALSE !(\read(tmp___0)) [L524] CALL, EXPR is_transmit2_triggered() [L232] int __retres1 ; VAL [E_1=2, E_2=1, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=2, \old(t1_st)=1, \old(t2_st)=2, \old(t3_st)=2, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=1, t2_i=1, t2_pc=1, t2_st=2, t3_i=1, t3_pc=1, t3_st=2] [L235] COND TRUE t2_pc == 1 VAL [E_1=2, E_2=1, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=2, \old(t1_st)=1, \old(t2_st)=2, \old(t3_st)=2, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=1, t2_i=1, t2_pc=1, t2_st=2, t3_i=1, t3_pc=1, t3_st=2] [L236] COND TRUE E_2 == 1 [L237] __retres1 = 1 VAL [E_1=2, E_2=1, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=2, \old(t1_st)=1, \old(t2_st)=2, \old(t3_st)=2, __retres1=1, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=1, t2_i=1, t2_pc=1, t2_st=2, t3_i=1, t3_pc=1, t3_st=2] [L247] return (__retres1); [L524] RET, EXPR is_transmit2_triggered() [L524] tmp___1 = is_transmit2_triggered() [L526] COND TRUE \read(tmp___1) [L527] t2_st = 0 [L532] CALL, EXPR is_transmit3_triggered() [L251] int __retres1 ; VAL [E_1=2, E_2=1, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=2, \old(t1_st)=1, \old(t2_st)=2, \old(t3_st)=2, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=1, t2_i=1, t2_pc=1, t2_st=0, t3_i=1, t3_pc=1, t3_st=2] [L254] COND TRUE t3_pc == 1 VAL [E_1=2, E_2=1, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=2, \old(t1_st)=1, \old(t2_st)=2, \old(t3_st)=2, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=1, t2_i=1, t2_pc=1, t2_st=0, t3_i=1, t3_pc=1, t3_st=2] [L255] COND FALSE !(E_3 == 1) VAL [E_1=2, E_2=1, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=2, \old(t1_st)=1, \old(t2_st)=2, \old(t3_st)=2, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=1, t2_i=1, t2_pc=1, t2_st=0, t3_i=1, t3_pc=1, t3_st=2] [L264] __retres1 = 0 VAL [E_1=2, E_2=1, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=2, \old(t1_st)=1, \old(t2_st)=2, \old(t3_st)=2, __retres1=0, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=1, t2_i=1, t2_pc=1, t2_st=0, t3_i=1, t3_pc=1, t3_st=2] [L266] return (__retres1); [L532] RET, EXPR is_transmit3_triggered() [L532] tmp___2 = is_transmit3_triggered() [L534] COND FALSE !(\read(tmp___2)) [L548] RET activate_threads() VAL [E_1=2, E_2=1, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=2, \old(t1_st)=1, \old(t2_st)=2, \old(t3_st)=2, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=1, t2_i=1, t2_pc=1, t2_st=0, t3_i=1, t3_pc=1, t3_st=2] [L114] RET immediate_notify() VAL [E_1=2, E_2=1, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=1, t2_i=1, t2_pc=1, t2_st=0, t3_i=1, t3_pc=1, t3_st=2] [L115] E_2 = 2 VAL [E_1=2, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=1, t2_i=1, t2_pc=1, t2_st=0, t3_i=1, t3_pc=1, t3_st=2] [L105] COND TRUE 1 [L107] t1_pc = 1 [L108] t1_st = 2 [L371] RET transmit1() [L379] COND TRUE t2_st == 0 [L380] int tmp_ndt_3; [L381] tmp_ndt_3 = __VERIFIER_nondet_int() [L382] COND TRUE \read(tmp_ndt_3) [L384] t2_st = 1 [L385] CALL transmit2() [L129] COND FALSE !(t2_pc == 0) VAL [E_1=2, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=1, t2_st=1, t3_i=1, t3_pc=1, t3_st=2] [L132] COND TRUE t2_pc == 1 [L148] E_3 = 1 VAL [E_1=2, E_2=2, E_3=1, M_E=2, T1_E=2, T2_E=2, T3_E=2, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=1, t2_st=1, t3_i=1, t3_pc=1, t3_st=2] [L149] CALL immediate_notify() VAL [E_1=2, E_2=2, E_3=1, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=2, \old(t1_st)=2, \old(t2_st)=1, \old(t3_st)=2, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=1, t2_st=1, t3_i=1, t3_pc=1, t3_st=2] [L548] CALL activate_threads() VAL [E_1=2, E_2=2, E_3=1, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=2, \old(t1_st)=2, \old(t2_st)=1, \old(t3_st)=2, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=1, t2_st=1, t3_i=1, t3_pc=1, t3_st=2] [L501] int tmp ; [L502] int tmp___0 ; [L503] int tmp___1 ; [L504] int tmp___2 ; [L508] CALL, EXPR is_master_triggered() [L194] int __retres1 ; VAL [E_1=2, E_2=2, E_3=1, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=2, \old(t1_st)=2, \old(t2_st)=1, \old(t3_st)=2, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=1, t2_st=1, t3_i=1, t3_pc=1, t3_st=2] [L197] COND TRUE m_pc == 1 VAL [E_1=2, E_2=2, E_3=1, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=2, \old(t1_st)=2, \old(t2_st)=1, \old(t3_st)=2, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=1, t2_st=1, t3_i=1, t3_pc=1, t3_st=2] [L198] COND FALSE !(M_E == 1) VAL [E_1=2, E_2=2, E_3=1, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=2, \old(t1_st)=2, \old(t2_st)=1, \old(t3_st)=2, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=1, t2_st=1, t3_i=1, t3_pc=1, t3_st=2] [L207] __retres1 = 0 VAL [E_1=2, E_2=2, E_3=1, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=2, \old(t1_st)=2, \old(t2_st)=1, \old(t3_st)=2, __retres1=0, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=1, t2_st=1, t3_i=1, t3_pc=1, t3_st=2] [L209] return (__retres1); [L508] RET, EXPR is_master_triggered() [L508] tmp = is_master_triggered() [L510] COND FALSE !(\read(tmp)) [L516] CALL, EXPR is_transmit1_triggered() [L213] int __retres1 ; VAL [E_1=2, E_2=2, E_3=1, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=2, \old(t1_st)=2, \old(t2_st)=1, \old(t3_st)=2, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=1, t2_st=1, t3_i=1, t3_pc=1, t3_st=2] [L216] COND TRUE t1_pc == 1 VAL [E_1=2, E_2=2, E_3=1, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=2, \old(t1_st)=2, \old(t2_st)=1, \old(t3_st)=2, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=1, t2_st=1, t3_i=1, t3_pc=1, t3_st=2] [L217] COND FALSE !(E_1 == 1) VAL [E_1=2, E_2=2, E_3=1, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=2, \old(t1_st)=2, \old(t2_st)=1, \old(t3_st)=2, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=1, t2_st=1, t3_i=1, t3_pc=1, t3_st=2] [L226] __retres1 = 0 VAL [E_1=2, E_2=2, E_3=1, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=2, \old(t1_st)=2, \old(t2_st)=1, \old(t3_st)=2, __retres1=0, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=1, t2_st=1, t3_i=1, t3_pc=1, t3_st=2] [L228] return (__retres1); [L516] RET, EXPR is_transmit1_triggered() [L516] tmp___0 = is_transmit1_triggered() [L518] COND FALSE !(\read(tmp___0)) [L524] CALL, EXPR is_transmit2_triggered() [L232] int __retres1 ; VAL [E_1=2, E_2=2, E_3=1, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=2, \old(t1_st)=2, \old(t2_st)=1, \old(t3_st)=2, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=1, t2_st=1, t3_i=1, t3_pc=1, t3_st=2] [L235] COND TRUE t2_pc == 1 VAL [E_1=2, E_2=2, E_3=1, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=2, \old(t1_st)=2, \old(t2_st)=1, \old(t3_st)=2, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=1, t2_st=1, t3_i=1, t3_pc=1, t3_st=2] [L236] COND FALSE !(E_2 == 1) VAL [E_1=2, E_2=2, E_3=1, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=2, \old(t1_st)=2, \old(t2_st)=1, \old(t3_st)=2, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=1, t2_st=1, t3_i=1, t3_pc=1, t3_st=2] [L245] __retres1 = 0 VAL [E_1=2, E_2=2, E_3=1, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=2, \old(t1_st)=2, \old(t2_st)=1, \old(t3_st)=2, __retres1=0, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=1, t2_st=1, t3_i=1, t3_pc=1, t3_st=2] [L247] return (__retres1); [L524] RET, EXPR is_transmit2_triggered() [L524] tmp___1 = is_transmit2_triggered() [L526] COND FALSE !(\read(tmp___1)) [L532] CALL, EXPR is_transmit3_triggered() [L251] int __retres1 ; VAL [E_1=2, E_2=2, E_3=1, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=2, \old(t1_st)=2, \old(t2_st)=1, \old(t3_st)=2, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=1, t2_st=1, t3_i=1, t3_pc=1, t3_st=2] [L254] COND TRUE t3_pc == 1 VAL [E_1=2, E_2=2, E_3=1, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=2, \old(t1_st)=2, \old(t2_st)=1, \old(t3_st)=2, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=1, t2_st=1, t3_i=1, t3_pc=1, t3_st=2] [L255] COND TRUE E_3 == 1 [L256] __retres1 = 1 VAL [E_1=2, E_2=2, E_3=1, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=2, \old(t1_st)=2, \old(t2_st)=1, \old(t3_st)=2, __retres1=1, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=1, t2_st=1, t3_i=1, t3_pc=1, t3_st=2] [L266] return (__retres1); [L532] RET, EXPR is_transmit3_triggered() [L532] tmp___2 = is_transmit3_triggered() [L534] COND TRUE \read(tmp___2) [L535] t3_st = 0 [L548] RET activate_threads() VAL [E_1=2, E_2=2, E_3=1, M_E=2, T1_E=2, T2_E=2, T3_E=2, \old(m_st)=2, \old(t1_st)=2, \old(t2_st)=1, \old(t3_st)=2, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=1, t2_st=1, t3_i=1, t3_pc=1, t3_st=0] [L149] RET immediate_notify() VAL [E_1=2, E_2=2, E_3=1, M_E=2, T1_E=2, T2_E=2, T3_E=2, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=1, t2_st=1, t3_i=1, t3_pc=1, t3_st=0] [L150] E_3 = 2 VAL [E_1=2, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=1, t2_st=1, t3_i=1, t3_pc=1, t3_st=0] [L140] COND TRUE 1 [L142] t2_pc = 1 [L143] t2_st = 2 [L385] RET transmit2() [L393] COND TRUE t3_st == 0 [L394] int tmp_ndt_4; [L395] tmp_ndt_4 = __VERIFIER_nondet_int() [L396] COND TRUE \read(tmp_ndt_4) [L398] t3_st = 1 [L399] CALL transmit3() [L164] COND FALSE !(t3_pc == 0) VAL [E_1=2, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=1, t2_st=2, t3_i=1, t3_pc=1, t3_st=1] [L167] COND TRUE t3_pc == 1 [L183] CALL error() [L21] reach_error() VAL [E_1=2, E_2=2, E_3=2, M_E=2, T1_E=2, T2_E=2, T3_E=2, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=1, t2_st=2, t3_i=1, t3_pc=1, t3_st=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 91 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 111.6s, OverallIterations: 27, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.3s, AutomataDifference: 55.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5553 SdHoareTripleChecker+Valid, 7.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5459 mSDsluCounter, 8854 SdHoareTripleChecker+Invalid, 5.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5176 mSDsCounter, 1160 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4981 IncrementalHoareTripleChecker+Invalid, 6141 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1160 mSolverCounterUnsat, 3678 mSDtfsCounter, 4981 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1436 GetRequests, 1244 SyntacticMatches, 0 SemanticMatches, 192 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 440 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26097occurred in iteration=20, InterpolantAutomatonStates: 158, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 42.0s AutomataMinimizationTime, 26 MinimizatonAttempts, 41757 StatesRemovedByMinimization, 26 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 8.6s InterpolantComputationTime, 3795 NumberOfCodeBlocks, 3795 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 3614 ConstructedInterpolants, 0 QuantifiedInterpolants, 7628 SizeOfPredicates, 5 NumberOfNonLiveVariables, 4455 ConjunctsInSsa, 77 ConjunctsInUnsatCore, 35 InterpolantComputations, 26 PerfectInterpolantSequences, 1713/1939 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-09 04:40:06,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b3bbee-b93b-4b4f-aa9d-30347d1ae578/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE