./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a229e54-45c9-4502-b931-f1360813ef07/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a229e54-45c9-4502-b931-f1360813ef07/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a229e54-45c9-4502-b931-f1360813ef07/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a229e54-45c9-4502-b931-f1360813ef07/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a229e54-45c9-4502-b931-f1360813ef07/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a229e54-45c9-4502-b931-f1360813ef07/bin/utaipan-verify-sOmjnqqW8E --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 2d0b9c4fc8b0005fb250fdf1ff8e25835b95e676b1936e4f5fe1cf72245ee5f5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:58:18,430 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:58:18,534 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a229e54-45c9-4502-b931-f1360813ef07/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 03:58:18,543 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:58:18,543 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:58:18,577 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:58:18,580 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:58:18,580 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:58:18,580 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:58:18,581 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:58:18,581 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:58:18,582 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:58:18,582 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:58:18,582 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:58:18,582 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:58:18,582 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:58:18,583 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:58:18,583 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:58:18,583 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:58:18,584 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:58:18,584 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:58:18,584 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:58:18,584 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:58:18,584 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:58:18,584 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:58:18,584 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:58:18,584 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:58:18,584 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:58:18,584 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:58:18,585 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:58:18,585 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:58:18,585 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:58:18,585 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:58:18,585 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:58:18,585 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:58:18,585 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:58:18,585 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:58:18,585 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:58:18,585 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:58:18,585 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:58:18,586 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:58:18,587 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:58:18,587 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:58:18,587 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:58:18,587 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:58:18,587 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:58:18,588 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:58:18,588 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_4a229e54-45c9-4502-b931-f1360813ef07/bin/utaipan-verify-sOmjnqqW8E 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 -> 2d0b9c4fc8b0005fb250fdf1ff8e25835b95e676b1936e4f5fe1cf72245ee5f5 [2024-11-14 03:58:18,945 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:58:18,955 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:58:18,958 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:58:18,960 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:58:18,960 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:58:18,962 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a229e54-45c9-4502-b931-f1360813ef07/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i Unable to find full path for "g++" [2024-11-14 03:58:21,128 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:58:21,500 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:58:21,501 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a229e54-45c9-4502-b931-f1360813ef07/sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i [2024-11-14 03:58:21,523 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a229e54-45c9-4502-b931-f1360813ef07/bin/utaipan-verify-sOmjnqqW8E/data/397311a8e/7be646d644bb4d3085a8e3c44b8ffdb9/FLAGccf0819c9 [2024-11-14 03:58:21,541 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a229e54-45c9-4502-b931-f1360813ef07/bin/utaipan-verify-sOmjnqqW8E/data/397311a8e/7be646d644bb4d3085a8e3c44b8ffdb9 [2024-11-14 03:58:21,544 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:58:21,546 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:58:21,549 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:58:21,549 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:58:21,557 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:58:21,558 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:58:21" (1/1) ... [2024-11-14 03:58:21,559 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37af8f4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:58:21, skipping insertion in model container [2024-11-14 03:58:21,561 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:58:21" (1/1) ... [2024-11-14 03:58:21,609 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:58:21,819 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_4a229e54-45c9-4502-b931-f1360813ef07/sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i[1097,1110] [2024-11-14 03:58:22,083 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:58:22,118 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:58:22,130 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_4a229e54-45c9-4502-b931-f1360813ef07/sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i[1097,1110] [2024-11-14 03:58:22,187 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:58:22,238 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:58:22,238 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:58:22 WrapperNode [2024-11-14 03:58:22,238 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:58:22,239 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:58:22,239 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:58:22,239 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:58:22,245 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:58:22" (1/1) ... [2024-11-14 03:58:22,257 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:58:22" (1/1) ... [2024-11-14 03:58:22,283 INFO L138 Inliner]: procedures = 166, calls = 63, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 118 [2024-11-14 03:58:22,283 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:58:22,284 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:58:22,284 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:58:22,284 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:58:22,292 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:58:22" (1/1) ... [2024-11-14 03:58:22,292 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:58:22" (1/1) ... [2024-11-14 03:58:22,295 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:58:22" (1/1) ... [2024-11-14 03:58:22,295 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:58:22" (1/1) ... [2024-11-14 03:58:22,303 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:58:22" (1/1) ... [2024-11-14 03:58:22,305 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:58:22" (1/1) ... [2024-11-14 03:58:22,307 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:58:22" (1/1) ... [2024-11-14 03:58:22,308 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:58:22" (1/1) ... [2024-11-14 03:58:22,311 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:58:22,312 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:58:22,312 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:58:22,312 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:58:22,313 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:58:22" (1/1) ... [2024-11-14 03:58:22,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:58:22,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a229e54-45c9-4502-b931-f1360813ef07/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:58:22,356 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a229e54-45c9-4502-b931-f1360813ef07/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:58:22,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a229e54-45c9-4502-b931-f1360813ef07/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:58:22,384 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-14 03:58:22,384 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-14 03:58:22,384 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-14 03:58:22,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:58:22,384 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-14 03:58:22,384 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-14 03:58:22,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-14 03:58:22,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 03:58:22,385 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-14 03:58:22,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:58:22,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:58:22,387 WARN L207 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-14 03:58:22,534 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:58:22,535 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:58:22,881 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-14 03:58:22,881 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:58:23,191 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:58:23,193 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-14 03:58:23,193 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:58:23 BoogieIcfgContainer [2024-11-14 03:58:23,194 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:58:23,196 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:58:23,197 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:58:23,202 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:58:23,202 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:58:21" (1/3) ... [2024-11-14 03:58:23,203 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fd81233 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:58:23, skipping insertion in model container [2024-11-14 03:58:23,203 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:58:22" (2/3) ... [2024-11-14 03:58:23,204 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fd81233 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:58:23, skipping insertion in model container [2024-11-14 03:58:23,204 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:58:23" (3/3) ... [2024-11-14 03:58:23,206 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_27-multiple-protecting2_true.i [2024-11-14 03:58:23,226 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:58:23,228 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG 13-privatized_27-multiple-protecting2_true.i that has 3 procedures, 77 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2024-11-14 03:58:23,229 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-14 03:58:23,299 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-14 03:58:23,338 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 83 places, 80 transitions, 174 flow [2024-11-14 03:58:23,866 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 7086 states, 7082 states have (on average 2.909912454109009) internal successors, (20608), 7085 states have internal predecessors, (20608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:58:23,923 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:58:23,938 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;@12123081, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:58:23,938 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-14 03:58:23,956 INFO L276 IsEmpty]: Start isEmpty. Operand has 7086 states, 7082 states have (on average 2.909912454109009) internal successors, (20608), 7085 states have internal predecessors, (20608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:58:23,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-14 03:58:23,965 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:58:23,966 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:58:23,967 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:58:23,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:58:23,972 INFO L85 PathProgramCache]: Analyzing trace with hash -920440210, now seen corresponding path program 1 times [2024-11-14 03:58:23,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:58:23,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569195080] [2024-11-14 03:58:23,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:58:23,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:58:24,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:58:24,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:58:24,466 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:58:24,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569195080] [2024-11-14 03:58:24,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569195080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:58:24,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:58:24,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:58:24,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984442642] [2024-11-14 03:58:24,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:58:24,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:58:24,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:58:24,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:58:24,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:58:24,513 INFO L87 Difference]: Start difference. First operand has 7086 states, 7082 states have (on average 2.909912454109009) internal successors, (20608), 7085 states have internal predecessors, (20608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:58:25,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:58:25,112 INFO L93 Difference]: Finished difference Result 12924 states and 37761 transitions. [2024-11-14 03:58:25,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:58:25,115 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-14 03:58:25,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:58:25,207 INFO L225 Difference]: With dead ends: 12924 [2024-11-14 03:58:25,207 INFO L226 Difference]: Without dead ends: 6848 [2024-11-14 03:58:25,234 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:58:25,239 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 85 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:58:25,240 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 76 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 03:58:25,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6848 states. [2024-11-14 03:58:25,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6848 to 6848. [2024-11-14 03:58:25,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6848 states, 6844 states have (on average 2.8192577440093514) internal successors, (19295), 6847 states have internal predecessors, (19295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:58:25,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6848 states to 6848 states and 19295 transitions. [2024-11-14 03:58:25,821 INFO L78 Accepts]: Start accepts. Automaton has 6848 states and 19295 transitions. Word has length 11 [2024-11-14 03:58:25,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:58:25,822 INFO L471 AbstractCegarLoop]: Abstraction has 6848 states and 19295 transitions. [2024-11-14 03:58:25,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:58:25,823 INFO L276 IsEmpty]: Start isEmpty. Operand 6848 states and 19295 transitions. [2024-11-14 03:58:25,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-14 03:58:25,829 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:58:25,829 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:58:25,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 03:58:25,833 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:58:25,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:58:25,834 INFO L85 PathProgramCache]: Analyzing trace with hash -541828747, now seen corresponding path program 1 times [2024-11-14 03:58:25,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:58:25,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146508667] [2024-11-14 03:58:25,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:58:25,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:58:25,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:58:26,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:58:26,200 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:58:26,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146508667] [2024-11-14 03:58:26,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146508667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:58:26,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:58:26,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:58:26,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375649376] [2024-11-14 03:58:26,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:58:26,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:58:26,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:58:26,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:58:26,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:58:26,205 INFO L87 Difference]: Start difference. First operand 6848 states and 19295 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:58:26,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:58:26,533 INFO L93 Difference]: Finished difference Result 9436 states and 25755 transitions. [2024-11-14 03:58:26,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:58:26,533 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-14 03:58:26,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:58:26,576 INFO L225 Difference]: With dead ends: 9436 [2024-11-14 03:58:26,576 INFO L226 Difference]: Without dead ends: 3766 [2024-11-14 03:58:26,588 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:58:26,591 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 137 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:58:26,592 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 56 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:58:26,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3766 states. [2024-11-14 03:58:26,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3766 to 3552. [2024-11-14 03:58:26,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3552 states, 3547 states have (on average 2.5054976036086836) internal successors, (8887), 3551 states have internal predecessors, (8887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:58:26,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3552 states to 3552 states and 8887 transitions. [2024-11-14 03:58:26,785 INFO L78 Accepts]: Start accepts. Automaton has 3552 states and 8887 transitions. Word has length 16 [2024-11-14 03:58:26,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:58:26,785 INFO L471 AbstractCegarLoop]: Abstraction has 3552 states and 8887 transitions. [2024-11-14 03:58:26,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:58:26,786 INFO L276 IsEmpty]: Start isEmpty. Operand 3552 states and 8887 transitions. [2024-11-14 03:58:26,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-14 03:58:26,789 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:58:26,789 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:58:26,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 03:58:26,789 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:58:26,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:58:26,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1022809140, now seen corresponding path program 1 times [2024-11-14 03:58:26,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:58:26,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984388181] [2024-11-14 03:58:26,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:58:26,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:58:26,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:58:27,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:58:27,122 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:58:27,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984388181] [2024-11-14 03:58:27,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984388181] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:58:27,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:58:27,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:58:27,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844337598] [2024-11-14 03:58:27,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:58:27,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:58:27,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:58:27,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:58:27,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:58:27,124 INFO L87 Difference]: Start difference. First operand 3552 states and 8887 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:58:27,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:58:27,424 INFO L93 Difference]: Finished difference Result 3822 states and 9528 transitions. [2024-11-14 03:58:27,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 03:58:27,425 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2024-11-14 03:58:27,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:58:27,448 INFO L225 Difference]: With dead ends: 3822 [2024-11-14 03:58:27,448 INFO L226 Difference]: Without dead ends: 3130 [2024-11-14 03:58:27,451 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:58:27,452 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 130 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:58:27,452 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 132 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:58:27,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3130 states. [2024-11-14 03:58:27,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3130 to 3110. [2024-11-14 03:58:27,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3110 states, 3105 states have (on average 2.46634460547504) internal successors, (7658), 3109 states have internal predecessors, (7658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:58:27,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3110 states to 3110 states and 7658 transitions. [2024-11-14 03:58:27,555 INFO L78 Accepts]: Start accepts. Automaton has 3110 states and 7658 transitions. Word has length 23 [2024-11-14 03:58:27,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:58:27,556 INFO L471 AbstractCegarLoop]: Abstraction has 3110 states and 7658 transitions. [2024-11-14 03:58:27,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:58:27,557 INFO L276 IsEmpty]: Start isEmpty. Operand 3110 states and 7658 transitions. [2024-11-14 03:58:27,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-14 03:58:27,562 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:58:27,562 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] [2024-11-14 03:58:27,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 03:58:27,563 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:58:27,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:58:27,563 INFO L85 PathProgramCache]: Analyzing trace with hash -2133652599, now seen corresponding path program 1 times [2024-11-14 03:58:27,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:58:27,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90386152] [2024-11-14 03:58:27,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:58:27,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:58:27,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:58:27,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:58:27,763 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:58:27,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90386152] [2024-11-14 03:58:27,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90386152] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:58:27,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:58:27,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:58:27,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049019338] [2024-11-14 03:58:27,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:58:27,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:58:27,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:58:27,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:58:27,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:58:27,765 INFO L87 Difference]: Start difference. First operand 3110 states and 7658 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:58:27,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:58:27,978 INFO L93 Difference]: Finished difference Result 3278 states and 8048 transitions. [2024-11-14 03:58:27,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:58:27,978 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-11-14 03:58:27,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:58:28,009 INFO L225 Difference]: With dead ends: 3278 [2024-11-14 03:58:28,009 INFO L226 Difference]: Without dead ends: 3092 [2024-11-14 03:58:28,011 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:58:28,012 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 57 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:58:28,012 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 79 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:58:28,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3092 states. [2024-11-14 03:58:28,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3092 to 3092. [2024-11-14 03:58:28,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3092 states, 3087 states have (on average 2.4655004859086493) internal successors, (7611), 3091 states have internal predecessors, (7611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:58:28,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3092 states to 3092 states and 7611 transitions. [2024-11-14 03:58:28,118 INFO L78 Accepts]: Start accepts. Automaton has 3092 states and 7611 transitions. Word has length 25 [2024-11-14 03:58:28,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:58:28,118 INFO L471 AbstractCegarLoop]: Abstraction has 3092 states and 7611 transitions. [2024-11-14 03:58:28,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:58:28,119 INFO L276 IsEmpty]: Start isEmpty. Operand 3092 states and 7611 transitions. [2024-11-14 03:58:28,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-14 03:58:28,125 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:58:28,125 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] [2024-11-14 03:58:28,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 03:58:28,125 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:58:28,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:58:28,126 INFO L85 PathProgramCache]: Analyzing trace with hash 2000027849, now seen corresponding path program 1 times [2024-11-14 03:58:28,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:58:28,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186649174] [2024-11-14 03:58:28,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:58:28,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:58:28,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:58:28,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:58:28,466 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:58:28,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186649174] [2024-11-14 03:58:28,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186649174] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:58:28,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:58:28,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:58:28,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816021349] [2024-11-14 03:58:28,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:58:28,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:58:28,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:58:28,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:58:28,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:58:28,469 INFO L87 Difference]: Start difference. First operand 3092 states and 7611 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:58:28,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:58:28,641 INFO L93 Difference]: Finished difference Result 3172 states and 7767 transitions. [2024-11-14 03:58:28,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:58:28,642 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2024-11-14 03:58:28,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:58:28,661 INFO L225 Difference]: With dead ends: 3172 [2024-11-14 03:58:28,661 INFO L226 Difference]: Without dead ends: 1602 [2024-11-14 03:58:28,664 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:58:28,666 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 104 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:58:28,666 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 29 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:58:28,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1602 states. [2024-11-14 03:58:28,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1602 to 1482. [2024-11-14 03:58:28,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1482 states, 1480 states have (on average 2.3986486486486487) internal successors, (3550), 1481 states have internal predecessors, (3550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:58:28,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1482 states to 1482 states and 3550 transitions. [2024-11-14 03:58:28,715 INFO L78 Accepts]: Start accepts. Automaton has 1482 states and 3550 transitions. Word has length 28 [2024-11-14 03:58:28,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:58:28,716 INFO L471 AbstractCegarLoop]: Abstraction has 1482 states and 3550 transitions. [2024-11-14 03:58:28,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:58:28,716 INFO L276 IsEmpty]: Start isEmpty. Operand 1482 states and 3550 transitions. [2024-11-14 03:58:28,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-14 03:58:28,719 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:58:28,719 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] [2024-11-14 03:58:28,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 03:58:28,720 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:58:28,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:58:28,721 INFO L85 PathProgramCache]: Analyzing trace with hash 424101733, now seen corresponding path program 1 times [2024-11-14 03:58:28,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:58:28,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583336591] [2024-11-14 03:58:28,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:58:28,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:58:28,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:58:28,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:58:28,945 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:58:28,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583336591] [2024-11-14 03:58:28,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583336591] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:58:28,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:58:28,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:58:28,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858173909] [2024-11-14 03:58:28,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:58:28,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:58:28,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:58:28,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:58:28,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:58:28,951 INFO L87 Difference]: Start difference. First operand 1482 states and 3550 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:58:29,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:58:29,091 INFO L93 Difference]: Finished difference Result 2330 states and 5486 transitions. [2024-11-14 03:58:29,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:58:29,092 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2024-11-14 03:58:29,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:58:29,105 INFO L225 Difference]: With dead ends: 2330 [2024-11-14 03:58:29,106 INFO L226 Difference]: Without dead ends: 1366 [2024-11-14 03:58:29,108 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:58:29,109 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 94 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:58:29,109 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 44 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:58:29,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1366 states. [2024-11-14 03:58:29,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1366 to 1254. [2024-11-14 03:58:29,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1254 states, 1250 states have (on average 2.2688) internal successors, (2836), 1253 states have internal predecessors, (2836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:58:29,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1254 states to 1254 states and 2836 transitions. [2024-11-14 03:58:29,160 INFO L78 Accepts]: Start accepts. Automaton has 1254 states and 2836 transitions. Word has length 30 [2024-11-14 03:58:29,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:58:29,160 INFO L471 AbstractCegarLoop]: Abstraction has 1254 states and 2836 transitions. [2024-11-14 03:58:29,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:58:29,161 INFO L276 IsEmpty]: Start isEmpty. Operand 1254 states and 2836 transitions. [2024-11-14 03:58:29,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-14 03:58:29,164 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:58:29,164 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] [2024-11-14 03:58:29,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-14 03:58:29,164 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:58:29,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:58:29,165 INFO L85 PathProgramCache]: Analyzing trace with hash 542005704, now seen corresponding path program 1 times [2024-11-14 03:58:29,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:58:29,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583461270] [2024-11-14 03:58:29,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:58:29,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:58:29,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:58:29,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:58:29,563 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:58:29,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583461270] [2024-11-14 03:58:29,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583461270] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:58:29,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:58:29,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 03:58:29,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74877921] [2024-11-14 03:58:29,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:58:29,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 03:58:29,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:58:29,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 03:58:29,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-14 03:58:29,564 INFO L87 Difference]: Start difference. First operand 1254 states and 2836 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:58:29,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:58:29,715 INFO L93 Difference]: Finished difference Result 1350 states and 3020 transitions. [2024-11-14 03:58:29,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:58:29,716 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2024-11-14 03:58:29,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:58:29,728 INFO L225 Difference]: With dead ends: 1350 [2024-11-14 03:58:29,728 INFO L226 Difference]: Without dead ends: 870 [2024-11-14 03:58:29,730 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-14 03:58:29,732 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 87 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:58:29,733 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 40 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:58:29,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2024-11-14 03:58:29,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 870. [2024-11-14 03:58:29,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 870 states, 868 states have (on average 2.2350230414746544) internal successors, (1940), 869 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:58:29,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 870 states to 870 states and 1940 transitions. [2024-11-14 03:58:29,770 INFO L78 Accepts]: Start accepts. Automaton has 870 states and 1940 transitions. Word has length 31 [2024-11-14 03:58:29,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:58:29,771 INFO L471 AbstractCegarLoop]: Abstraction has 870 states and 1940 transitions. [2024-11-14 03:58:29,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:58:29,772 INFO L276 IsEmpty]: Start isEmpty. Operand 870 states and 1940 transitions. [2024-11-14 03:58:29,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-14 03:58:29,774 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:58:29,774 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] [2024-11-14 03:58:29,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-14 03:58:29,775 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:58:29,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:58:29,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1597407811, now seen corresponding path program 1 times [2024-11-14 03:58:29,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:58:29,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608723103] [2024-11-14 03:58:29,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:58:29,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:58:29,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:58:30,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:58:30,059 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:58:30,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608723103] [2024-11-14 03:58:30,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608723103] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:58:30,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:58:30,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:58:30,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561972006] [2024-11-14 03:58:30,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:58:30,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:58:30,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:58:30,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:58:30,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:58:30,061 INFO L87 Difference]: Start difference. First operand 870 states and 1940 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:58:30,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:58:30,247 INFO L93 Difference]: Finished difference Result 870 states and 1940 transitions. [2024-11-14 03:58:30,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 03:58:30,247 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2024-11-14 03:58:30,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:58:30,256 INFO L225 Difference]: With dead ends: 870 [2024-11-14 03:58:30,256 INFO L226 Difference]: Without dead ends: 0 [2024-11-14 03:58:30,257 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:58:30,258 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 48 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:58:30,258 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 72 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:58:30,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-14 03:58:30,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-14 03:58:30,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:58:30,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-14 03:58:30,265 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2024-11-14 03:58:30,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:58:30,266 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-14 03:58:30,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:58:30,266 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-14 03:58:30,266 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-14 03:58:30,269 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2024-11-14 03:58:30,269 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2024-11-14 03:58:30,269 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 6 remaining) [2024-11-14 03:58:30,269 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2024-11-14 03:58:30,270 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-11-14 03:58:30,270 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-11-14 03:58:30,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-14 03:58:30,273 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:58:30,277 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-14 03:58:30,278 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 03:58:30,284 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 03:58:30 BasicIcfg [2024-11-14 03:58:30,284 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 03:58:30,285 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 03:58:30,285 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 03:58:30,285 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 03:58:30,287 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:58:23" (3/4) ... [2024-11-14 03:58:30,291 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-14 03:58:30,295 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t2_fun [2024-11-14 03:58:30,295 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-14 03:58:30,302 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 51 nodes and edges [2024-11-14 03:58:30,302 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-14 03:58:30,303 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-14 03:58:30,303 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-14 03:58:30,385 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a229e54-45c9-4502-b931-f1360813ef07/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 03:58:30,385 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a229e54-45c9-4502-b931-f1360813ef07/bin/utaipan-verify-sOmjnqqW8E/witness.yml [2024-11-14 03:58:30,385 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 03:58:30,386 INFO L158 Benchmark]: Toolchain (without parser) took 8840.72ms. Allocated memory was 117.4MB in the beginning and 335.5MB in the end (delta: 218.1MB). Free memory was 91.5MB in the beginning and 233.7MB in the end (delta: -142.2MB). Peak memory consumption was 74.6MB. Max. memory is 16.1GB. [2024-11-14 03:58:30,387 INFO L158 Benchmark]: CDTParser took 0.55ms. Allocated memory is still 117.4MB. Free memory is still 74.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:58:30,387 INFO L158 Benchmark]: CACSL2BoogieTranslator took 690.24ms. Allocated memory is still 117.4MB. Free memory was 91.2MB in the beginning and 70.4MB in the end (delta: 20.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-14 03:58:30,387 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.25ms. Allocated memory is still 117.4MB. Free memory was 70.4MB in the beginning and 68.5MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:58:30,388 INFO L158 Benchmark]: Boogie Preprocessor took 26.99ms. Allocated memory is still 117.4MB. Free memory was 68.2MB in the beginning and 67.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:58:30,388 INFO L158 Benchmark]: RCFGBuilder took 882.28ms. Allocated memory is still 117.4MB. Free memory was 67.1MB in the beginning and 67.8MB in the end (delta: -772.1kB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. [2024-11-14 03:58:30,388 INFO L158 Benchmark]: TraceAbstraction took 7088.30ms. Allocated memory was 117.4MB in the beginning and 335.5MB in the end (delta: 218.1MB). Free memory was 67.2MB in the beginning and 237.1MB in the end (delta: -169.8MB). Peak memory consumption was 52.6MB. Max. memory is 16.1GB. [2024-11-14 03:58:30,389 INFO L158 Benchmark]: Witness Printer took 100.94ms. Allocated memory is still 335.5MB. Free memory was 237.1MB in the beginning and 233.7MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:58:30,390 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55ms. Allocated memory is still 117.4MB. Free memory is still 74.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 690.24ms. Allocated memory is still 117.4MB. Free memory was 91.2MB in the beginning and 70.4MB in the end (delta: 20.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.25ms. Allocated memory is still 117.4MB. Free memory was 70.4MB in the beginning and 68.5MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.99ms. Allocated memory is still 117.4MB. Free memory was 68.2MB in the beginning and 67.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 882.28ms. Allocated memory is still 117.4MB. Free memory was 67.1MB in the beginning and 67.8MB in the end (delta: -772.1kB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. * TraceAbstraction took 7088.30ms. Allocated memory was 117.4MB in the beginning and 335.5MB in the end (delta: 218.1MB). Free memory was 67.2MB in the beginning and 237.1MB in the end (delta: -169.8MB). Peak memory consumption was 52.6MB. Max. memory is 16.1GB. * Witness Printer took 100.94ms. Allocated memory is still 335.5MB. Free memory was 237.1MB in the beginning and 233.7MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 107 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 6.9s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 742 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 742 mSDsluCounter, 528 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 281 mSDsCounter, 140 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1056 IncrementalHoareTripleChecker+Invalid, 1196 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 140 mSolverCounterUnsat, 247 mSDtfsCounter, 1056 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7086occurred in iteration=0, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 466 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 201 NumberOfCodeBlocks, 201 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 193 ConstructedInterpolants, 0 QuantifiedInterpolants, 901 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-14 03:58:30,422 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a229e54-45c9-4502-b931-f1360813ef07/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE