./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e87f61-b0ea-43f8-bdc2-256c98cd73e9/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e87f61-b0ea-43f8-bdc2-256c98cd73e9/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_31e87f61-b0ea-43f8-bdc2-256c98cd73e9/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e87f61-b0ea-43f8-bdc2-256c98cd73e9/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e87f61-b0ea-43f8-bdc2-256c98cd73e9/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e87f61-b0ea-43f8-bdc2-256c98cd73e9/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b71c523f20411078d17c9943b891d34ddfc00131917c4009fb579cdffacef23c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:10:13,802 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:10:13,861 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e87f61-b0ea-43f8-bdc2-256c98cd73e9/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-14 05:10:13,866 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:10:13,867 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:10:13,893 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:10:13,894 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:10:13,894 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:10:13,895 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:10:13,895 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:10:13,895 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:10:13,895 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:10:13,895 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:10:13,895 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:10:13,896 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:10:13,896 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:10:13,896 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:10:13,896 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:10:13,896 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:10:13,897 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:10:13,897 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:10:13,897 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:10:13,897 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:10:13,897 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:10:13,897 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:10:13,898 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:10:13,898 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:10:13,898 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:10:13,898 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:10:13,898 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:10:13,898 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:10:13,898 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:10:13,898 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 05:10:13,898 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 05:10:13,898 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:10:13,898 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:10:13,898 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:10:13,898 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:10:13,898 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:10:13,898 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:10:13,899 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:10:13,899 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:10:13,899 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:10:13,899 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:10:13,899 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:10:13,899 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:10:13,899 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:10:13,899 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:10:13,899 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:10:13,899 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_31e87f61-b0ea-43f8-bdc2-256c98cd73e9/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 ! overflow) ) 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 -> b71c523f20411078d17c9943b891d34ddfc00131917c4009fb579cdffacef23c [2024-11-14 05:10:14,203 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:10:14,216 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:10:14,219 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:10:14,221 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:10:14,221 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:10:14,224 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e87f61-b0ea-43f8-bdc2-256c98cd73e9/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.i Unable to find full path for "g++" [2024-11-14 05:10:16,097 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:10:16,482 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:10:16,483 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e87f61-b0ea-43f8-bdc2-256c98cd73e9/sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.i [2024-11-14 05:10:16,507 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e87f61-b0ea-43f8-bdc2-256c98cd73e9/bin/utaipan-verify-sOmjnqqW8E/data/292aded1b/f8ff26abb35f4794a347603cf7e6acdf/FLAG87fb37694 [2024-11-14 05:10:16,529 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e87f61-b0ea-43f8-bdc2-256c98cd73e9/bin/utaipan-verify-sOmjnqqW8E/data/292aded1b/f8ff26abb35f4794a347603cf7e6acdf [2024-11-14 05:10:16,534 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:10:16,536 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:10:16,539 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:10:16,539 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:10:16,545 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:10:16,546 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:10:16" (1/1) ... [2024-11-14 05:10:16,547 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f89a117 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:10:16, skipping insertion in model container [2024-11-14 05:10:16,547 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:10:16" (1/1) ... [2024-11-14 05:10:16,608 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:10:17,276 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:10:17,305 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:10:17,367 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:10:17,438 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:10:17,440 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:10:17 WrapperNode [2024-11-14 05:10:17,440 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:10:17,441 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:10:17,441 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:10:17,441 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:10:17,450 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:10:17" (1/1) ... [2024-11-14 05:10:17,462 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:10:17" (1/1) ... [2024-11-14 05:10:17,484 INFO L138 Inliner]: procedures = 267, calls = 26, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 112 [2024-11-14 05:10:17,484 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:10:17,485 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:10:17,485 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:10:17,485 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:10:17,492 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:10:17" (1/1) ... [2024-11-14 05:10:17,492 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:10:17" (1/1) ... [2024-11-14 05:10:17,497 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:10:17" (1/1) ... [2024-11-14 05:10:17,497 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:10:17" (1/1) ... [2024-11-14 05:10:17,505 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:10:17" (1/1) ... [2024-11-14 05:10:17,507 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:10:17" (1/1) ... [2024-11-14 05:10:17,510 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:10:17" (1/1) ... [2024-11-14 05:10:17,511 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:10:17" (1/1) ... [2024-11-14 05:10:17,515 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:10:17,516 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:10:17,516 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:10:17,516 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:10:17,517 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:10:17" (1/1) ... [2024-11-14 05:10:17,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:10:17,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e87f61-b0ea-43f8-bdc2-256c98cd73e9/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:10:17,546 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e87f61-b0ea-43f8-bdc2-256c98cd73e9/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:10:17,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e87f61-b0ea-43f8-bdc2-256c98cd73e9/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:10:17,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 05:10:17,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 05:10:17,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-14 05:10:17,570 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-14 05:10:17,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 05:10:17,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 05:10:17,570 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-14 05:10:17,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:10:17,570 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-14 05:10:17,570 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-14 05:10:17,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:10:17,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:10:17,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:10:17,572 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 05:10:17,724 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:10:17,726 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:10:17,962 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-14 05:10:17,963 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:10:18,426 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:10:18,426 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-14 05:10:18,426 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:10:18 BoogieIcfgContainer [2024-11-14 05:10:18,426 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:10:18,430 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:10:18,430 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:10:18,436 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:10:18,436 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:10:16" (1/3) ... [2024-11-14 05:10:18,438 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b0a4e42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:10:18, skipping insertion in model container [2024-11-14 05:10:18,438 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:10:17" (2/3) ... [2024-11-14 05:10:18,438 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b0a4e42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:10:18, skipping insertion in model container [2024-11-14 05:10:18,438 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:10:18" (3/3) ... [2024-11-14 05:10:18,439 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_46-escape_nr.i [2024-11-14 05:10:18,455 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:10:18,459 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG 04-mutex_46-escape_nr.i that has 2 procedures, 26 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2024-11-14 05:10:18,459 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-14 05:10:18,516 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-14 05:10:18,556 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 29 places, 26 transitions, 59 flow [2024-11-14 05:10:18,584 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 94 states, 86 states have (on average 1.9186046511627908) internal successors, (165), 93 states have internal predecessors, (165), 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 05:10:18,614 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:10:18,632 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;@61eed3cb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:10:18,632 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-14 05:10:18,635 INFO L276 IsEmpty]: Start isEmpty. Operand has 94 states, 86 states have (on average 1.9186046511627908) internal successors, (165), 93 states have internal predecessors, (165), 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 05:10:18,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-14 05:10:18,642 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:10:18,643 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:10:18,644 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-14 05:10:18,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:10:18,649 INFO L85 PathProgramCache]: Analyzing trace with hash 697505677, now seen corresponding path program 1 times [2024-11-14 05:10:18,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:10:18,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738152527] [2024-11-14 05:10:18,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:18,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:10:18,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:19,170 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 05:10:19,170 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:10:19,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738152527] [2024-11-14 05:10:19,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738152527] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:10:19,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:10:19,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:10:19,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57977179] [2024-11-14 05:10:19,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:10:19,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:10:19,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:10:19,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:10:19,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:10:19,204 INFO L87 Difference]: Start difference. First operand has 94 states, 86 states have (on average 1.9186046511627908) internal successors, (165), 93 states have internal predecessors, (165), 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, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 05:10:19,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:10:19,340 INFO L93 Difference]: Finished difference Result 103 states and 180 transitions. [2024-11-14 05:10:19,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:10:19,343 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2024-11-14 05:10:19,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:10:19,351 INFO L225 Difference]: With dead ends: 103 [2024-11-14 05:10:19,352 INFO L226 Difference]: Without dead ends: 93 [2024-11-14 05:10:19,356 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 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 05:10:19,360 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 24 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:10:19,361 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 13 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:10:19,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-14 05:10:19,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 90. [2024-11-14 05:10:19,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 84 states have (on average 1.8571428571428572) internal successors, (156), 89 states have internal predecessors, (156), 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 05:10:19,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 156 transitions. [2024-11-14 05:10:19,415 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 156 transitions. Word has length 7 [2024-11-14 05:10:19,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:10:19,415 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 156 transitions. [2024-11-14 05:10:19,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 05:10:19,416 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 156 transitions. [2024-11-14 05:10:19,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-14 05:10:19,417 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:10:19,417 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:10:19,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 05:10:19,417 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-14 05:10:19,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:10:19,418 INFO L85 PathProgramCache]: Analyzing trace with hash 698124331, now seen corresponding path program 1 times [2024-11-14 05:10:19,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:10:19,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403462240] [2024-11-14 05:10:19,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:19,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:10:19,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:19,796 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 05:10:19,796 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:10:19,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403462240] [2024-11-14 05:10:19,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403462240] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:10:19,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:10:19,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 05:10:19,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405854582] [2024-11-14 05:10:19,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:10:19,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 05:10:19,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:10:19,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 05:10:19,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:10:19,799 INFO L87 Difference]: Start difference. First operand 90 states and 156 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 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 05:10:19,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:10:19,998 INFO L93 Difference]: Finished difference Result 99 states and 171 transitions. [2024-11-14 05:10:19,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 05:10:19,999 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 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 7 [2024-11-14 05:10:20,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:10:20,002 INFO L225 Difference]: With dead ends: 99 [2024-11-14 05:10:20,002 INFO L226 Difference]: Without dead ends: 90 [2024-11-14 05:10:20,003 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-14 05:10:20,004 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 50 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:10:20,005 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 27 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:10:20,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-14 05:10:20,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 87. [2024-11-14 05:10:20,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 82 states have (on average 1.8170731707317074) internal successors, (149), 86 states have internal predecessors, (149), 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 05:10:20,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 149 transitions. [2024-11-14 05:10:20,016 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 149 transitions. Word has length 7 [2024-11-14 05:10:20,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:10:20,016 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 149 transitions. [2024-11-14 05:10:20,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 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 05:10:20,016 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 149 transitions. [2024-11-14 05:10:20,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-14 05:10:20,017 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:10:20,017 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:10:20,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 05:10:20,017 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-14 05:10:20,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:10:20,018 INFO L85 PathProgramCache]: Analyzing trace with hash 147839804, now seen corresponding path program 1 times [2024-11-14 05:10:20,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:10:20,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407980217] [2024-11-14 05:10:20,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:20,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:10:20,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:20,278 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 05:10:20,278 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:10:20,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407980217] [2024-11-14 05:10:20,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407980217] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:10:20,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:10:20,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:10:20,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295223162] [2024-11-14 05:10:20,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:10:20,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:10:20,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:10:20,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:10:20,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:10:20,281 INFO L87 Difference]: Start difference. First operand 87 states and 149 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 05:10:20,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:10:20,401 INFO L93 Difference]: Finished difference Result 93 states and 156 transitions. [2024-11-14 05:10:20,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 05:10:20,401 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 8 [2024-11-14 05:10:20,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:10:20,402 INFO L225 Difference]: With dead ends: 93 [2024-11-14 05:10:20,402 INFO L226 Difference]: Without dead ends: 78 [2024-11-14 05:10:20,405 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:10:20,406 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 15 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:10:20,406 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 26 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:10:20,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-11-14 05:10:20,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2024-11-14 05:10:20,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 74 states have (on average 1.7567567567567568) internal successors, (130), 77 states have internal predecessors, (130), 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 05:10:20,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 130 transitions. [2024-11-14 05:10:20,420 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 130 transitions. Word has length 8 [2024-11-14 05:10:20,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:10:20,421 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 130 transitions. [2024-11-14 05:10:20,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 05:10:20,421 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 130 transitions. [2024-11-14 05:10:20,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-14 05:10:20,421 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:10:20,421 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:10:20,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 05:10:20,422 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-14 05:10:20,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:10:20,422 INFO L85 PathProgramCache]: Analyzing trace with hash 167018100, now seen corresponding path program 1 times [2024-11-14 05:10:20,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:10:20,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849019073] [2024-11-14 05:10:20,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:20,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:10:20,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:20,712 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 05:10:20,712 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:10:20,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849019073] [2024-11-14 05:10:20,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849019073] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:10:20,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:10:20,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:10:20,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869111095] [2024-11-14 05:10:20,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:10:20,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 05:10:20,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:10:20,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 05:10:20,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:10:20,714 INFO L87 Difference]: Start difference. First operand 78 states and 130 transitions. Second operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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 05:10:20,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:10:20,902 INFO L93 Difference]: Finished difference Result 84 states and 137 transitions. [2024-11-14 05:10:20,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 05:10:20,902 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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 8 [2024-11-14 05:10:20,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:10:20,903 INFO L225 Difference]: With dead ends: 84 [2024-11-14 05:10:20,903 INFO L226 Difference]: Without dead ends: 66 [2024-11-14 05:10:20,904 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-14 05:10:20,904 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 30 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:10:20,905 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 44 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:10:20,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2024-11-14 05:10:20,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2024-11-14 05:10:20,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 62 states have (on average 1.6935483870967742) internal successors, (105), 65 states have internal predecessors, (105), 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 05:10:20,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 105 transitions. [2024-11-14 05:10:20,916 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 105 transitions. Word has length 8 [2024-11-14 05:10:20,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:10:20,916 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 105 transitions. [2024-11-14 05:10:20,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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 05:10:20,916 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 105 transitions. [2024-11-14 05:10:20,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-14 05:10:20,917 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:10:20,917 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:10:20,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 05:10:20,917 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-14 05:10:20,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:10:20,918 INFO L85 PathProgramCache]: Analyzing trace with hash 873968319, now seen corresponding path program 1 times [2024-11-14 05:10:20,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:10:20,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968670459] [2024-11-14 05:10:20,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:20,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:10:20,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:21,071 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 05:10:21,072 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:10:21,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968670459] [2024-11-14 05:10:21,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968670459] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:10:21,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:10:21,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:10:21,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671466162] [2024-11-14 05:10:21,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:10:21,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:10:21,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:10:21,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:10:21,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:10:21,075 INFO L87 Difference]: Start difference. First operand 66 states and 105 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 05:10:21,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:10:21,117 INFO L93 Difference]: Finished difference Result 86 states and 131 transitions. [2024-11-14 05:10:21,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:10:21,118 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2024-11-14 05:10:21,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:10:21,120 INFO L225 Difference]: With dead ends: 86 [2024-11-14 05:10:21,120 INFO L226 Difference]: Without dead ends: 51 [2024-11-14 05:10:21,121 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:10:21,123 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 12 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:10:21,123 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 9 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:10:21,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-11-14 05:10:21,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2024-11-14 05:10:21,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 47 states have (on average 1.553191489361702) internal successors, (73), 50 states have internal predecessors, (73), 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 05:10:21,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 73 transitions. [2024-11-14 05:10:21,132 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 73 transitions. Word has length 12 [2024-11-14 05:10:21,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:10:21,134 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 73 transitions. [2024-11-14 05:10:21,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 05:10:21,135 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 73 transitions. [2024-11-14 05:10:21,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-14 05:10:21,135 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:10:21,135 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:10:21,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 05:10:21,135 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-14 05:10:21,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:10:21,136 INFO L85 PathProgramCache]: Analyzing trace with hash 892078055, now seen corresponding path program 1 times [2024-11-14 05:10:21,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:10:21,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724943887] [2024-11-14 05:10:21,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:21,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:10:21,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:21,461 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 05:10:21,461 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:10:21,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724943887] [2024-11-14 05:10:21,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724943887] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:10:21,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:10:21,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 05:10:21,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987000365] [2024-11-14 05:10:21,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:10:21,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 05:10:21,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:10:21,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 05:10:21,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:10:21,462 INFO L87 Difference]: Start difference. First operand 51 states and 73 transitions. Second operand has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 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 05:10:21,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:10:21,687 INFO L93 Difference]: Finished difference Result 65 states and 91 transitions. [2024-11-14 05:10:21,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 05:10:21,687 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 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 13 [2024-11-14 05:10:21,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:10:21,688 INFO L225 Difference]: With dead ends: 65 [2024-11-14 05:10:21,688 INFO L226 Difference]: Without dead ends: 63 [2024-11-14 05:10:21,688 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2024-11-14 05:10:21,690 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 45 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:10:21,692 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 29 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:10:21,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-11-14 05:10:21,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 59. [2024-11-14 05:10:21,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 55 states have (on average 1.5272727272727273) internal successors, (84), 58 states have internal predecessors, (84), 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 05:10:21,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 84 transitions. [2024-11-14 05:10:21,702 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 84 transitions. Word has length 13 [2024-11-14 05:10:21,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:10:21,703 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 84 transitions. [2024-11-14 05:10:21,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 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 05:10:21,703 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 84 transitions. [2024-11-14 05:10:21,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-14 05:10:21,703 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:10:21,703 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:10:21,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-14 05:10:21,704 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-14 05:10:21,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:10:21,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1752736523, now seen corresponding path program 2 times [2024-11-14 05:10:21,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:10:21,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844578279] [2024-11-14 05:10:21,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:21,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:10:21,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:22,027 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 05:10:22,027 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:10:22,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844578279] [2024-11-14 05:10:22,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844578279] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:10:22,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:10:22,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 05:10:22,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493564900] [2024-11-14 05:10:22,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:10:22,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 05:10:22,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:10:22,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 05:10:22,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:10:22,030 INFO L87 Difference]: Start difference. First operand 59 states and 84 transitions. Second operand has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 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 05:10:22,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:10:22,234 INFO L93 Difference]: Finished difference Result 72 states and 101 transitions. [2024-11-14 05:10:22,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 05:10:22,235 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 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 13 [2024-11-14 05:10:22,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:10:22,236 INFO L225 Difference]: With dead ends: 72 [2024-11-14 05:10:22,236 INFO L226 Difference]: Without dead ends: 70 [2024-11-14 05:10:22,236 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-14 05:10:22,237 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 24 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:10:22,237 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 31 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:10:22,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2024-11-14 05:10:22,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 58. [2024-11-14 05:10:22,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 54 states have (on average 1.537037037037037) internal successors, (83), 57 states have internal predecessors, (83), 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 05:10:22,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 83 transitions. [2024-11-14 05:10:22,244 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 83 transitions. Word has length 13 [2024-11-14 05:10:22,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:10:22,244 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 83 transitions. [2024-11-14 05:10:22,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 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 05:10:22,244 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 83 transitions. [2024-11-14 05:10:22,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-14 05:10:22,248 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:10:22,248 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:10:22,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-14 05:10:22,249 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-14 05:10:22,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:10:22,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1299615413, now seen corresponding path program 3 times [2024-11-14 05:10:22,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:10:22,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837344411] [2024-11-14 05:10:22,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:22,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:10:22,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:22,551 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 05:10:22,551 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:10:22,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837344411] [2024-11-14 05:10:22,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837344411] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:10:22,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:10:22,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 05:10:22,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672593893] [2024-11-14 05:10:22,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:10:22,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 05:10:22,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:10:22,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 05:10:22,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:10:22,552 INFO L87 Difference]: Start difference. First operand 58 states and 83 transitions. Second operand has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 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 05:10:22,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:10:22,748 INFO L93 Difference]: Finished difference Result 62 states and 87 transitions. [2024-11-14 05:10:22,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 05:10:22,749 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 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 13 [2024-11-14 05:10:22,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:10:22,750 INFO L225 Difference]: With dead ends: 62 [2024-11-14 05:10:22,750 INFO L226 Difference]: Without dead ends: 60 [2024-11-14 05:10:22,751 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-14 05:10:22,751 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 29 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:10:22,751 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 28 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:10:22,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-11-14 05:10:22,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 49. [2024-11-14 05:10:22,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 46 states have (on average 1.5217391304347827) internal successors, (70), 48 states have internal predecessors, (70), 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 05:10:22,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 70 transitions. [2024-11-14 05:10:22,761 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 70 transitions. Word has length 13 [2024-11-14 05:10:22,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:10:22,761 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 70 transitions. [2024-11-14 05:10:22,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 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 05:10:22,761 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 70 transitions. [2024-11-14 05:10:22,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-14 05:10:22,762 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:10:22,762 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:10:22,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-14 05:10:22,762 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-14 05:10:22,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:10:22,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1781070185, now seen corresponding path program 1 times [2024-11-14 05:10:22,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:10:22,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678723355] [2024-11-14 05:10:22,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:22,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:10:22,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:23,006 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 05:10:23,006 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:10:23,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678723355] [2024-11-14 05:10:23,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678723355] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:10:23,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:10:23,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 05:10:23,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091852537] [2024-11-14 05:10:23,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:10:23,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 05:10:23,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:10:23,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 05:10:23,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:10:23,008 INFO L87 Difference]: Start difference. First operand 49 states and 70 transitions. Second operand has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 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 05:10:23,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:10:23,197 INFO L93 Difference]: Finished difference Result 49 states and 70 transitions. [2024-11-14 05:10:23,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 05:10:23,197 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 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 13 [2024-11-14 05:10:23,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:10:23,198 INFO L225 Difference]: With dead ends: 49 [2024-11-14 05:10:23,199 INFO L226 Difference]: Without dead ends: 47 [2024-11-14 05:10:23,199 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2024-11-14 05:10:23,200 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 48 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:10:23,200 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 8 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:10:23,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-11-14 05:10:23,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2024-11-14 05:10:23,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 45 states have (on average 1.488888888888889) internal successors, (67), 46 states have internal predecessors, (67), 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 05:10:23,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 67 transitions. [2024-11-14 05:10:23,206 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 67 transitions. Word has length 13 [2024-11-14 05:10:23,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:10:23,207 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 67 transitions. [2024-11-14 05:10:23,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 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 05:10:23,207 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 67 transitions. [2024-11-14 05:10:23,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-14 05:10:23,208 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:10:23,208 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:10:23,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-14 05:10:23,208 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-14 05:10:23,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:10:23,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1884616248, now seen corresponding path program 1 times [2024-11-14 05:10:23,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:10:23,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343082107] [2024-11-14 05:10:23,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:23,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:10:23,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:23,514 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 05:10:23,514 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:10:23,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343082107] [2024-11-14 05:10:23,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343082107] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:10:23,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:10:23,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 05:10:23,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130499208] [2024-11-14 05:10:23,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:10:23,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-14 05:10:23,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:10:23,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-14 05:10:23,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-14 05:10:23,515 INFO L87 Difference]: Start difference. First operand 47 states and 67 transitions. Second operand has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:10:23,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:10:23,743 INFO L93 Difference]: Finished difference Result 60 states and 83 transitions. [2024-11-14 05:10:23,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 05:10:23,743 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-14 05:10:23,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:10:23,744 INFO L225 Difference]: With dead ends: 60 [2024-11-14 05:10:23,744 INFO L226 Difference]: Without dead ends: 44 [2024-11-14 05:10:23,744 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-11-14 05:10:23,745 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 17 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:10:23,745 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 35 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:10:23,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-11-14 05:10:23,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2024-11-14 05:10:23,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 42 states have (on average 1.4285714285714286) internal successors, (60), 43 states have internal predecessors, (60), 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 05:10:23,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 60 transitions. [2024-11-14 05:10:23,747 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 60 transitions. Word has length 14 [2024-11-14 05:10:23,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:10:23,748 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 60 transitions. [2024-11-14 05:10:23,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:10:23,748 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 60 transitions. [2024-11-14 05:10:23,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-14 05:10:23,748 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:10:23,748 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:10:23,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-14 05:10:23,749 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-14 05:10:23,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:10:23,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1633372458, now seen corresponding path program 2 times [2024-11-14 05:10:23,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:10:23,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261345554] [2024-11-14 05:10:23,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:23,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:10:23,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:24,018 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 05:10:24,018 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:10:24,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261345554] [2024-11-14 05:10:24,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261345554] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:10:24,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:10:24,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 05:10:24,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348228979] [2024-11-14 05:10:24,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:10:24,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-14 05:10:24,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:10:24,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-14 05:10:24,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-14 05:10:24,020 INFO L87 Difference]: Start difference. First operand 44 states and 60 transitions. Second operand has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:10:24,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:10:24,159 INFO L93 Difference]: Finished difference Result 44 states and 60 transitions. [2024-11-14 05:10:24,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-14 05:10:24,159 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-14 05:10:24,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:10:24,160 INFO L225 Difference]: With dead ends: 44 [2024-11-14 05:10:24,160 INFO L226 Difference]: Without dead ends: 27 [2024-11-14 05:10:24,160 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-11-14 05:10:24,161 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 22 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:10:24,161 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 20 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:10:24,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-11-14 05:10:24,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-11-14 05:10:24,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 26 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 05:10:24,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2024-11-14 05:10:24,163 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 14 [2024-11-14 05:10:24,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:10:24,163 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2024-11-14 05:10:24,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:10:24,163 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2024-11-14 05:10:24,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-14 05:10:24,163 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:10:24,164 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:10:24,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-14 05:10:24,164 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-14 05:10:24,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:10:24,164 INFO L85 PathProgramCache]: Analyzing trace with hash -621398816, now seen corresponding path program 1 times [2024-11-14 05:10:24,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:10:24,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89772030] [2024-11-14 05:10:24,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:24,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:10:24,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:24,521 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 05:10:24,522 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:10:24,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89772030] [2024-11-14 05:10:24,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89772030] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:10:24,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:10:24,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 05:10:24,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043583667] [2024-11-14 05:10:24,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:10:24,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-14 05:10:24,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:10:24,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-14 05:10:24,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-14 05:10:24,525 INFO L87 Difference]: Start difference. First operand 27 states and 37 transitions. Second operand has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:10:24,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:10:24,635 INFO L93 Difference]: Finished difference Result 27 states and 37 transitions. [2024-11-14 05:10:24,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-14 05:10:24,636 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-14 05:10:24,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:10:24,636 INFO L225 Difference]: With dead ends: 27 [2024-11-14 05:10:24,637 INFO L226 Difference]: Without dead ends: 0 [2024-11-14 05:10:24,637 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-14 05:10:24,637 INFO L432 NwaCegarLoop]: 0 mSDtfsCounter, 11 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:10:24,638 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 0 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:10:24,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-14 05:10:24,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-14 05:10:24,639 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 05:10:24,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-14 05:10:24,639 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2024-11-14 05:10:24,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:10:24,640 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-14 05:10:24,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:10:24,640 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-14 05:10:24,640 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-14 05:10:24,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2024-11-14 05:10:24,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2024-11-14 05:10:24,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2024-11-14 05:10:24,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2024-11-14 05:10:24,644 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2024-11-14 05:10:24,644 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2024-11-14 05:10:24,644 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2024-11-14 05:10:24,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-14 05:10:24,647 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:10:24,652 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-14 05:10:24,652 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 05:10:24,655 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 05:10:24 BasicIcfg [2024-11-14 05:10:24,655 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 05:10:24,656 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 05:10:24,656 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 05:10:24,656 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 05:10:24,657 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:10:18" (3/4) ... [2024-11-14 05:10:24,658 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-14 05:10:24,663 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-14 05:10:24,671 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 93 nodes and edges [2024-11-14 05:10:24,671 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-14 05:10:24,672 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-14 05:10:24,672 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-14 05:10:24,763 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e87f61-b0ea-43f8-bdc2-256c98cd73e9/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 05:10:24,763 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e87f61-b0ea-43f8-bdc2-256c98cd73e9/bin/utaipan-verify-sOmjnqqW8E/witness.yml [2024-11-14 05:10:24,763 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 05:10:24,764 INFO L158 Benchmark]: Toolchain (without parser) took 8228.09ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 115.7MB in the beginning and 107.3MB in the end (delta: 8.5MB). Peak memory consumption was 45.5MB. Max. memory is 16.1GB. [2024-11-14 05:10:24,764 INFO L158 Benchmark]: CDTParser took 1.15ms. Allocated memory is still 117.4MB. Free memory is still 73.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:10:24,765 INFO L158 Benchmark]: CACSL2BoogieTranslator took 902.00ms. Allocated memory is still 142.6MB. Free memory was 115.7MB in the beginning and 87.7MB in the end (delta: 28.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 05:10:24,766 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.08ms. Allocated memory is still 142.6MB. Free memory was 87.7MB in the beginning and 85.6MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:10:24,767 INFO L158 Benchmark]: Boogie Preprocessor took 30.47ms. Allocated memory is still 142.6MB. Free memory was 85.6MB in the beginning and 84.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:10:24,767 INFO L158 Benchmark]: RCFGBuilder took 910.72ms. Allocated memory is still 142.6MB. Free memory was 84.1MB in the beginning and 74.4MB in the end (delta: 9.7MB). Peak memory consumption was 47.9MB. Max. memory is 16.1GB. [2024-11-14 05:10:24,768 INFO L158 Benchmark]: TraceAbstraction took 6225.01ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 73.7MB in the beginning and 111.9MB in the end (delta: -38.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:10:24,768 INFO L158 Benchmark]: Witness Printer took 107.34ms. Allocated memory is still 176.2MB. Free memory was 111.9MB in the beginning and 107.3MB in the end (delta: 4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:10:24,771 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.15ms. Allocated memory is still 117.4MB. Free memory is still 73.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 902.00ms. Allocated memory is still 142.6MB. Free memory was 115.7MB in the beginning and 87.7MB in the end (delta: 28.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.08ms. Allocated memory is still 142.6MB. Free memory was 87.7MB in the beginning and 85.6MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.47ms. Allocated memory is still 142.6MB. Free memory was 85.6MB in the beginning and 84.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 910.72ms. Allocated memory is still 142.6MB. Free memory was 84.1MB in the beginning and 74.4MB in the end (delta: 9.7MB). Peak memory consumption was 47.9MB. Max. memory is 16.1GB. * TraceAbstraction took 6225.01ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 73.7MB in the beginning and 111.9MB in the end (delta: -38.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 107.34ms. Allocated memory is still 176.2MB. Free memory was 111.9MB in the beginning and 107.3MB in the end (delta: 4.7MB). Peak memory consumption was 8.4MB. 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: 936]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 936]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 924]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 924]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 37 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 6.1s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 327 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 327 mSDsluCounter, 270 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 191 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1062 IncrementalHoareTripleChecker+Invalid, 1080 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 79 mSDtfsCounter, 1062 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 100 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=94occurred in iteration=0, InterpolantAutomatonStates: 93, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 33 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 136 NumberOfCodeBlocks, 136 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 124 ConstructedInterpolants, 0 QuantifiedInterpolants, 959 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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 05:10:24,805 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e87f61-b0ea-43f8-bdc2-256c98cd73e9/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