./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/seq-pthread/cs_lazy.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_af8fb9e0-9f21-4fb7-9baf-a859004137e9/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8fb9e0-9f21-4fb7-9baf-a859004137e9/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_af8fb9e0-9f21-4fb7-9baf-a859004137e9/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8fb9e0-9f21-4fb7-9baf-a859004137e9/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-pthread/cs_lazy.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8fb9e0-9f21-4fb7-9baf-a859004137e9/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_af8fb9e0-9f21-4fb7-9baf-a859004137e9/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 b26873cfd586f35040b8fa56225beaa479db089ab89500d17d6395862bf9072f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:00:09,942 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:00:10,037 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8fb9e0-9f21-4fb7-9baf-a859004137e9/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-14 05:00:10,044 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:00:10,045 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:00:10,083 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:00:10,084 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:00:10,084 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:00:10,085 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:00:10,085 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:00:10,085 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:00:10,085 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:00:10,085 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:00:10,085 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:00:10,086 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:00:10,086 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:00:10,086 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:00:10,086 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:00:10,086 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:00:10,086 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:00:10,086 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:00:10,086 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:00:10,087 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:00:10,087 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:00:10,087 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:00:10,089 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:00:10,089 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:00:10,089 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:00:10,089 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:00:10,089 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:00:10,089 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:00:10,089 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:00:10,090 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 05:00:10,090 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 05:00:10,090 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:00:10,090 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:00:10,090 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:00:10,091 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:00:10,091 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:00:10,091 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:00:10,091 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:00:10,091 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:00:10,091 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:00:10,091 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:00:10,092 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:00:10,092 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:00:10,092 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:00:10,092 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:00:10,092 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:00:10,092 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_af8fb9e0-9f21-4fb7-9baf-a859004137e9/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 -> b26873cfd586f35040b8fa56225beaa479db089ab89500d17d6395862bf9072f [2024-11-14 05:00:10,440 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:00:10,452 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:00:10,457 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:00:10,458 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:00:10,459 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:00:10,461 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8fb9e0-9f21-4fb7-9baf-a859004137e9/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/seq-pthread/cs_lazy.i Unable to find full path for "g++" [2024-11-14 05:00:12,434 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:00:12,808 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:00:12,808 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8fb9e0-9f21-4fb7-9baf-a859004137e9/sv-benchmarks/c/seq-pthread/cs_lazy.i [2024-11-14 05:00:12,824 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8fb9e0-9f21-4fb7-9baf-a859004137e9/bin/utaipan-verify-sOmjnqqW8E/data/04220b4f4/d3565b24294c495ba6490f9eb98effac/FLAG37b8cf1b5 [2024-11-14 05:00:12,838 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8fb9e0-9f21-4fb7-9baf-a859004137e9/bin/utaipan-verify-sOmjnqqW8E/data/04220b4f4/d3565b24294c495ba6490f9eb98effac [2024-11-14 05:00:12,844 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:00:12,846 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:00:12,847 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:00:12,847 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:00:12,852 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:00:12,853 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:00:12" (1/1) ... [2024-11-14 05:00:12,854 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45c7069b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:12, skipping insertion in model container [2024-11-14 05:00:12,854 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:00:12" (1/1) ... [2024-11-14 05:00:12,886 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:00:13,361 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:00:13,375 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:00:13,502 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:00:13,549 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:00:13,550 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:13 WrapperNode [2024-11-14 05:00:13,552 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:00:13,553 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:00:13,553 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:00:13,553 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:00:13,560 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:13" (1/1) ... [2024-11-14 05:00:13,591 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:13" (1/1) ... [2024-11-14 05:00:13,656 INFO L138 Inliner]: procedures = 145, calls = 224, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 537 [2024-11-14 05:00:13,656 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:00:13,657 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:00:13,657 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:00:13,657 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:00:13,666 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:13" (1/1) ... [2024-11-14 05:00:13,667 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:13" (1/1) ... [2024-11-14 05:00:13,680 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:13" (1/1) ... [2024-11-14 05:00:13,682 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:13" (1/1) ... [2024-11-14 05:00:13,724 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:13" (1/1) ... [2024-11-14 05:00:13,736 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:13" (1/1) ... [2024-11-14 05:00:13,741 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:13" (1/1) ... [2024-11-14 05:00:13,748 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:13" (1/1) ... [2024-11-14 05:00:13,763 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:00:13,764 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:00:13,764 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:00:13,764 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:00:13,765 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:13" (1/1) ... [2024-11-14 05:00:13,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:00:13,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8fb9e0-9f21-4fb7-9baf-a859004137e9/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:00:13,803 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8fb9e0-9f21-4fb7-9baf-a859004137e9/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:00:13,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8fb9e0-9f21-4fb7-9baf-a859004137e9/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:00:13,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 05:00:13,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 05:00:13,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:00:13,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 05:00:13,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-14 05:00:13,837 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_lock [2024-11-14 05:00:13,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_lock [2024-11-14 05:00:13,837 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2024-11-14 05:00:13,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2024-11-14 05:00:13,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-14 05:00:13,838 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2024-11-14 05:00:13,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2024-11-14 05:00:13,838 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2024-11-14 05:00:13,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2024-11-14 05:00:13,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 05:00:13,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-14 05:00:13,838 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2024-11-14 05:00:13,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2024-11-14 05:00:13,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:00:13,838 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_unlock [2024-11-14 05:00:13,839 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_unlock [2024-11-14 05:00:13,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:00:13,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:00:14,065 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:00:14,067 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:00:14,534 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##32: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);thread3_#res#1.base, thread3_#res#1.offset := 0, 0; [2024-11-14 05:00:14,534 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##31: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2024-11-14 05:00:14,534 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##30: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);thread3_#res#1.base, thread3_#res#1.offset := 0, 0; [2024-11-14 05:00:14,534 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##33: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2024-11-14 05:00:14,534 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint L714: SUMMARY for call __CS_cs(); srcloc: null [2024-11-14 05:00:14,534 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint L714-1: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);thread3_#res#1.base, thread3_#res#1.offset := 0, 0; [2024-11-14 05:00:14,534 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint L714-1: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2024-11-14 05:00:17,050 INFO L? ?]: Removed 100 outVars from TransFormulas that were not future-live. [2024-11-14 05:00:17,051 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:00:17,368 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:00:17,368 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-14 05:00:17,368 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:00:17 BoogieIcfgContainer [2024-11-14 05:00:17,368 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:00:17,371 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:00:17,371 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:00:17,377 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:00:17,378 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:00:12" (1/3) ... [2024-11-14 05:00:17,378 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14f701fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:00:17, skipping insertion in model container [2024-11-14 05:00:17,379 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:13" (2/3) ... [2024-11-14 05:00:17,379 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14f701fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:00:17, skipping insertion in model container [2024-11-14 05:00:17,379 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:00:17" (3/3) ... [2024-11-14 05:00:17,381 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_lazy.i [2024-11-14 05:00:17,396 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:00:17,398 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG cs_lazy.i that has 7 procedures, 141 locations, 1 initial locations, 2 loop locations, and 16 error locations. [2024-11-14 05:00:17,474 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:00:17,491 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;@6dc61e85, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:00:17,492 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-11-14 05:00:17,496 INFO L276 IsEmpty]: Start isEmpty. Operand has 141 states, 81 states have (on average 1.5308641975308641) internal successors, (124), 97 states have internal predecessors, (124), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-14 05:00:17,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-14 05:00:17,503 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:00:17,503 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-14 05:00:17,504 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-14 05:00:17,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:00:17,509 INFO L85 PathProgramCache]: Analyzing trace with hash 17431955, now seen corresponding path program 1 times [2024-11-14 05:00:17,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:00:17,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576008549] [2024-11-14 05:00:17,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:00:17,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:00:17,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:00:17,930 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 05:00:17,933 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:00:17,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576008549] [2024-11-14 05:00:17,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576008549] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:00:17,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:00:17,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:00:17,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984832719] [2024-11-14 05:00:17,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:00:17,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:00:17,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:00:17,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:00:17,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:00:17,970 INFO L87 Difference]: Start difference. First operand has 141 states, 81 states have (on average 1.5308641975308641) internal successors, (124), 97 states have internal predecessors, (124), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:00:20,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:00:22,023 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:00:22,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:00:22,231 INFO L93 Difference]: Finished difference Result 276 states and 401 transitions. [2024-11-14 05:00:22,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:00:22,234 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-14 05:00:22,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:00:22,242 INFO L225 Difference]: With dead ends: 276 [2024-11-14 05:00:22,242 INFO L226 Difference]: Without dead ends: 133 [2024-11-14 05:00:22,248 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 05:00:22,251 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 1 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:00:22,251 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 329 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 2 Unknown, 0 Unchecked, 4.2s Time] [2024-11-14 05:00:22,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2024-11-14 05:00:22,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2024-11-14 05:00:22,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 82 states have (on average 1.4146341463414633) internal successors, (116), 90 states have internal predecessors, (116), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-14 05:00:22,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 189 transitions. [2024-11-14 05:00:22,305 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 189 transitions. Word has length 4 [2024-11-14 05:00:22,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:00:22,305 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 189 transitions. [2024-11-14 05:00:22,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:00:22,306 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 189 transitions. [2024-11-14 05:00:22,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-14 05:00:22,306 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:00:22,306 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2024-11-14 05:00:22,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 05:00:22,307 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-14 05:00:22,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:00:22,308 INFO L85 PathProgramCache]: Analyzing trace with hash -375357749, now seen corresponding path program 1 times [2024-11-14 05:00:22,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:00:22,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857544177] [2024-11-14 05:00:22,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:00:22,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:00:22,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:00:22,527 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:00:22,527 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:00:22,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857544177] [2024-11-14 05:00:22,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857544177] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:00:22,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1636121053] [2024-11-14 05:00:22,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:00:22,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:00:22,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8fb9e0-9f21-4fb7-9baf-a859004137e9/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:00:22,530 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8fb9e0-9f21-4fb7-9baf-a859004137e9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:00:22,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8fb9e0-9f21-4fb7-9baf-a859004137e9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 05:00:22,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:00:22,791 INFO L255 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 05:00:22,795 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:00:22,828 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:00:22,828 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:00:22,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1636121053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:00:22,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:00:22,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-11-14 05:00:22,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331738664] [2024-11-14 05:00:22,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:00:22,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:00:22,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:00:22,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:00:22,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:00:22,832 INFO L87 Difference]: Start difference. First operand 133 states and 189 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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 05:00:24,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:00:26,881 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:00:28,886 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:00:29,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:00:29,080 INFO L93 Difference]: Finished difference Result 133 states and 189 transitions. [2024-11-14 05:00:29,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:00:29,081 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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 05:00:29,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:00:29,083 INFO L225 Difference]: With dead ends: 133 [2024-11-14 05:00:29,083 INFO L226 Difference]: Without dead ends: 132 [2024-11-14 05:00:29,086 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 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 05:00:29,086 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 1 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:00:29,087 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 323 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 3 Unknown, 0 Unchecked, 6.2s Time] [2024-11-14 05:00:29,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2024-11-14 05:00:29,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2024-11-14 05:00:29,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 82 states have (on average 1.4024390243902438) internal successors, (115), 89 states have internal predecessors, (115), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-14 05:00:29,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 188 transitions. [2024-11-14 05:00:29,118 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 188 transitions. Word has length 7 [2024-11-14 05:00:29,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:00:29,118 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 188 transitions. [2024-11-14 05:00:29,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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 05:00:29,118 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 188 transitions. [2024-11-14 05:00:29,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-14 05:00:29,119 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:00:29,119 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:00:29,141 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8fb9e0-9f21-4fb7-9baf-a859004137e9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 05:00:29,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8fb9e0-9f21-4fb7-9baf-a859004137e9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:00:29,320 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-14 05:00:29,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:00:29,320 INFO L85 PathProgramCache]: Analyzing trace with hash -375349247, now seen corresponding path program 1 times [2024-11-14 05:00:29,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:00:29,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337228902] [2024-11-14 05:00:29,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:00:29,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:00:29,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:00:29,479 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:00:29,479 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:00:29,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337228902] [2024-11-14 05:00:29,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337228902] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:00:29,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [928880525] [2024-11-14 05:00:29,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:00:29,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:00:29,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8fb9e0-9f21-4fb7-9baf-a859004137e9/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:00:29,482 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8fb9e0-9f21-4fb7-9baf-a859004137e9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:00:29,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8fb9e0-9f21-4fb7-9baf-a859004137e9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 05:00:29,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:00:29,687 INFO L255 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-14 05:00:29,688 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:00:29,716 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 05:00:29,717 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:00:29,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [928880525] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:00:29,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:00:29,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [4] total 5 [2024-11-14 05:00:29,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533195692] [2024-11-14 05:00:29,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:00:29,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:00:29,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:00:29,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:00:29,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:00:29,719 INFO L87 Difference]: Start difference. First operand 132 states and 188 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 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 05:00:31,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:00:32,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:00:32,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:00:32,926 INFO L93 Difference]: Finished difference Result 132 states and 188 transitions. [2024-11-14 05:00:32,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:00:32,927 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 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 05:00:32,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:00:32,929 INFO L225 Difference]: With dead ends: 132 [2024-11-14 05:00:32,929 INFO L226 Difference]: Without dead ends: 131 [2024-11-14 05:00:32,929 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:00:32,930 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 2 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:00:32,930 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 317 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2024-11-14 05:00:32,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-11-14 05:00:32,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2024-11-14 05:00:32,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 82 states have (on average 1.3902439024390243) internal successors, (114), 88 states have internal predecessors, (114), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-14 05:00:32,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 187 transitions. [2024-11-14 05:00:32,955 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 187 transitions. Word has length 7 [2024-11-14 05:00:32,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:00:32,955 INFO L471 AbstractCegarLoop]: Abstraction has 131 states and 187 transitions. [2024-11-14 05:00:32,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 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 05:00:32,956 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 187 transitions. [2024-11-14 05:00:32,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-14 05:00:32,956 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:00:32,957 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-14 05:00:32,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8fb9e0-9f21-4fb7-9baf-a859004137e9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-14 05:00:33,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8fb9e0-9f21-4fb7-9baf-a859004137e9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:00:33,158 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-14 05:00:33,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:00:33,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1248811985, now seen corresponding path program 1 times [2024-11-14 05:00:33,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:00:33,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854448688] [2024-11-14 05:00:33,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:00:33,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:00:33,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:00:33,286 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 05:00:33,287 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:00:33,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854448688] [2024-11-14 05:00:33,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854448688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:00:33,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:00:33,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:00:33,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803995389] [2024-11-14 05:00:33,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:00:33,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:00:33,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:00:33,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:00:33,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:00:33,288 INFO L87 Difference]: Start difference. First operand 131 states and 187 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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 05:00:35,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:00:37,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:00:37,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:00:37,566 INFO L93 Difference]: Finished difference Result 131 states and 187 transitions. [2024-11-14 05:00:37,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:00:37,567 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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 05:00:37,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:00:37,569 INFO L225 Difference]: With dead ends: 131 [2024-11-14 05:00:37,569 INFO L226 Difference]: Without dead ends: 130 [2024-11-14 05:00:37,569 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 05:00:37,570 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 0 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:00:37,570 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 321 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 2 Unknown, 0 Unchecked, 4.3s Time] [2024-11-14 05:00:37,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2024-11-14 05:00:37,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 128. [2024-11-14 05:00:37,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 80 states have (on average 1.3875) internal successors, (111), 85 states have internal predecessors, (111), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-14 05:00:37,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 184 transitions. [2024-11-14 05:00:37,583 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 184 transitions. Word has length 8 [2024-11-14 05:00:37,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:00:37,583 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 184 transitions. [2024-11-14 05:00:37,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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 05:00:37,583 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 184 transitions. [2024-11-14 05:00:37,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-14 05:00:37,584 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:00:37,584 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:00:37,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 05:00:37,584 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-14 05:00:37,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:00:37,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1249075555, now seen corresponding path program 1 times [2024-11-14 05:00:37,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:00:37,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424769994] [2024-11-14 05:00:37,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:00:37,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:00:37,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:00:37,695 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:00:37,695 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:00:37,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424769994] [2024-11-14 05:00:37,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424769994] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:00:37,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [156752417] [2024-11-14 05:00:37,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:00:37,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:00:37,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8fb9e0-9f21-4fb7-9baf-a859004137e9/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:00:37,698 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8fb9e0-9f21-4fb7-9baf-a859004137e9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:00:37,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8fb9e0-9f21-4fb7-9baf-a859004137e9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 05:00:37,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:00:37,877 INFO L255 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-14 05:00:37,878 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:00:37,906 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 05:00:37,906 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:00:37,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [156752417] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:00:37,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:00:37,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [4] total 5 [2024-11-14 05:00:37,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198672421] [2024-11-14 05:00:37,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:00:37,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:00:37,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:00:37,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:00:37,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:00:37,908 INFO L87 Difference]: Start difference. First operand 128 states and 184 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 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 05:00:39,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:00:41,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:00:42,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:00:42,146 INFO L93 Difference]: Finished difference Result 255 states and 367 transitions. [2024-11-14 05:00:42,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:00:42,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 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 05:00:42,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:00:42,150 INFO L225 Difference]: With dead ends: 255 [2024-11-14 05:00:42,150 INFO L226 Difference]: Without dead ends: 135 [2024-11-14 05:00:42,152 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:00:42,152 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 0 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:00:42,153 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 319 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 2 Unknown, 0 Unchecked, 4.2s Time] [2024-11-14 05:00:42,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2024-11-14 05:00:42,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2024-11-14 05:00:42,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 87 states have (on average 1.367816091954023) internal successors, (119), 92 states have internal predecessors, (119), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-14 05:00:42,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 192 transitions. [2024-11-14 05:00:42,165 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 192 transitions. Word has length 8 [2024-11-14 05:00:42,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:00:42,165 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 192 transitions. [2024-11-14 05:00:42,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 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 05:00:42,166 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 192 transitions. [2024-11-14 05:00:42,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-14 05:00:42,166 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:00:42,166 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-11-14 05:00:42,187 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8fb9e0-9f21-4fb7-9baf-a859004137e9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-14 05:00:42,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8fb9e0-9f21-4fb7-9baf-a859004137e9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:00:42,367 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-14 05:00:42,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:00:42,367 INFO L85 PathProgramCache]: Analyzing trace with hash 334590399, now seen corresponding path program 1 times [2024-11-14 05:00:42,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:00:42,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030407060] [2024-11-14 05:00:42,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:00:42,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:00:42,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:00:42,548 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-14 05:00:42,548 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:00:42,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030407060] [2024-11-14 05:00:42,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030407060] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:00:42,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1135813253] [2024-11-14 05:00:42,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:00:42,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:00:42,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8fb9e0-9f21-4fb7-9baf-a859004137e9/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:00:42,554 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8fb9e0-9f21-4fb7-9baf-a859004137e9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:00:42,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8fb9e0-9f21-4fb7-9baf-a859004137e9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 05:00:42,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:00:42,759 INFO L255 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-14 05:00:42,760 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:00:42,790 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-14 05:00:42,790 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:00:42,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1135813253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:00:42,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:00:42,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-11-14 05:00:42,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443728525] [2024-11-14 05:00:42,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:00:42,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:00:42,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:00:42,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:00:42,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:00:42,792 INFO L87 Difference]: Start difference. First operand 135 states and 192 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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 05:00:44,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:00:45,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:00:45,694 INFO L93 Difference]: Finished difference Result 135 states and 192 transitions. [2024-11-14 05:00:45,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:00:45,694 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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 15 [2024-11-14 05:00:45,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:00:45,696 INFO L225 Difference]: With dead ends: 135 [2024-11-14 05:00:45,696 INFO L226 Difference]: Without dead ends: 134 [2024-11-14 05:00:45,696 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:00:45,697 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 0 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-14 05:00:45,697 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 316 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 1 Unknown, 0 Unchecked, 2.9s Time] [2024-11-14 05:00:45,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2024-11-14 05:00:45,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 128. [2024-11-14 05:00:45,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 81 states have (on average 1.3703703703703705) internal successors, (111), 85 states have internal predecessors, (111), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-14 05:00:45,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 184 transitions. [2024-11-14 05:00:45,718 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 184 transitions. Word has length 15 [2024-11-14 05:00:45,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:00:45,718 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 184 transitions. [2024-11-14 05:00:45,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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 05:00:45,718 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 184 transitions. [2024-11-14 05:00:45,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-14 05:00:45,723 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:00:45,724 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:00:45,745 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8fb9e0-9f21-4fb7-9baf-a859004137e9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-14 05:00:45,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8fb9e0-9f21-4fb7-9baf-a859004137e9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-14 05:00:45,924 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ##fun~$Pointer$~TO~$Pointer$Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-14 05:00:45,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:00:45,925 INFO L85 PathProgramCache]: Analyzing trace with hash 2072365663, now seen corresponding path program 1 times [2024-11-14 05:00:45,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:00:45,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667125563] [2024-11-14 05:00:45,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:00:45,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:00:46,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:00:46,224 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 05:00:46,224 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:00:46,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667125563] [2024-11-14 05:00:46,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667125563] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:00:46,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [773095838] [2024-11-14 05:00:46,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:00:46,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:00:46,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8fb9e0-9f21-4fb7-9baf-a859004137e9/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:00:46,227 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8fb9e0-9f21-4fb7-9baf-a859004137e9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:00:46,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8fb9e0-9f21-4fb7-9baf-a859004137e9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 05:00:46,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:00:46,540 INFO L255 TraceCheckSpWp]: Trace formula consists of 591 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 05:00:46,543 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:00:46,569 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 05:00:46,571 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:00:46,637 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 05:00:46,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [773095838] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:00:46,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [579583457] [2024-11-14 05:00:46,660 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2024-11-14 05:00:46,661 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:00:46,664 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:00:46,668 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:00:46,669 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:00:58,907 INFO L197 IcfgInterpreter]: Interpreting procedure ##fun~$Pointer$~TO~$Pointer$ with input of size 351 for LOIs [2024-11-14 05:01:01,027 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:03:45,979 WARN L286 SmtUtils]: Spent 2.54m on a formula simplification. DAG size of input: 326 DAG size of output: 320 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:03:47,994 WARN L851 $PredicateComparison]: unable to prove that (and (= |c_ULTIMATE.start_main_~#__CS_cp_data~0#1.offset| 0) (= c_~__CS_round~0 (select (select |c_#memory_int| 4) 0)) (= (select (select |c_#memory_$Pointer$.base| 5) 0) |c_ULTIMATE.start_main_#t~mem60#1.base|) (= |c_ULTIMATE.start_main_#t~mem60#1.offset| (select (select |c_#memory_$Pointer$.offset| 5) 0)) (= 2 c_~__THREAD_FINISHED~0) (= |c_~#__CS_thread_born_round~0.offset| 0) (= c_~__CS_ret_FINISHED~0 4) (exists ((|v_#memory_int_158| (Array Int (Array Int Int))) (|v_#memory_int_154| (Array Int (Array Int Int))) (|v_#memory_int_155| (Array Int (Array Int Int))) (|v_#memory_int_156| (Array Int (Array Int Int))) (|v_#memory_int_157| (Array Int (Array Int Int))) (|v_#memory_int_240| (Array Int (Array Int Int)))) (let ((.cse0 (select |v_#memory_int_155| 7)) (.cse1 (select |v_#memory_int_154| 7)) (.cse2 (select |v_#memory_int_158| 7))) (and (= (store |v_#memory_int_155| 7 (store .cse0 20 (select .cse1 20))) |v_#memory_int_154|) (= (store |v_#memory_int_158| 7 (store .cse2 28 (select (select |v_#memory_int_157| 7) 28))) |v_#memory_int_157|) (= (store (store |v_#memory_int_240| 6 (let ((.cse3 (let ((.cse4 (let ((.cse5 (store (select |v_#memory_int_240| 6) 4 (select (select |v_#memory_int_240| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) 4)))) (store .cse5 5 (select (select (store |v_#memory_int_240| 6 .cse5) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) 5))))) (store .cse4 6 (select (select (store |v_#memory_int_240| 6 .cse4) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) 6))))) (store .cse3 7 (select (select (store |v_#memory_int_240| 6 .cse3) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) 7)))) 7 (store (select |v_#memory_int_240| 7) 16 (select .cse0 16))) |v_#memory_int_155|) (= (store |v_#memory_int_154| 7 (store .cse1 24 (select .cse2 24))) |v_#memory_int_158|) (= |c_#memory_int| (store |v_#memory_int_156| 3 (store (select |v_#memory_int_156| 3) 0 1))) (= (store (store (store (let ((.cse6 (store |v_#memory_int_157| 8 (store (select |v_#memory_int_157| 8) 1 (select (select |v_#memory_int_157| |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base|) 1))))) (store .cse6 9 (store (select |v_#memory_int_157| 9) 4 (select (select .cse6 |c_ULTIMATE.start_main_~#__CS_cp_data~0#1.base|) 4)))) 4 (store (select |v_#memory_int_157| 4) 0 0)) 6 (store (select |v_#memory_int_157| 6) 0 1)) 5 (store (select |v_#memory_int_157| 5) 0 (select (select |v_#memory_int_156| 5) 0))) |v_#memory_int_156|)))) (= 2 c_~__CS_ret_ERROR~0) (= |c_~#__CS_thread~0.offset| 0) (= (mod (select (select |c_#memory_int| 3) 0) 256) 1) (= c_~__CS_ret~0 0) (<= 1 |c_#StackHeapBarrier|) (= |c_~#mutex~0.base| 8) (<= 2 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) (= |c_~#__CS_thread_born_round~0.base| 4) (exists ((|v_#memory_$Pointer$.base_163| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_162| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_161| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_160| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_159| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_166| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_165| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_264| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_164| (Array Int (Array Int Int)))) (let ((.cse7 (select |v_#memory_$Pointer$.base_165| 6)) (.cse8 (select |v_#memory_$Pointer$.base_164| 6)) (.cse12 (select |v_#memory_$Pointer$.base_160| 6))) (and (= |v_#memory_$Pointer$.base_161| (store |v_#memory_$Pointer$.base_166| 4 (store (select |v_#memory_$Pointer$.base_166| 4) 0 (select (select |v_#memory_$Pointer$.base_161| 4) 0)))) (= (store |v_#memory_$Pointer$.base_165| 6 (store .cse7 5 (select .cse8 5))) |v_#memory_$Pointer$.base_164|) (= (store |v_#memory_$Pointer$.base_161| 6 (store (select |v_#memory_$Pointer$.base_161| 6) 0 (select (select |v_#memory_$Pointer$.base_159| 6) 0))) |v_#memory_$Pointer$.base_159|) (= (store (store |v_#memory_$Pointer$.base_159| 5 (store (select |v_#memory_$Pointer$.base_159| 5) 0 |#funAddr~main_thread.base|)) 3 (store (select |v_#memory_$Pointer$.base_159| 3) 0 (select (select |c_#memory_$Pointer$.base| 3) 0))) |c_#memory_$Pointer$.base|) (= (store |v_#memory_$Pointer$.base_264| 6 (store (select |v_#memory_$Pointer$.base_264| 6) 4 (select .cse7 4))) |v_#memory_$Pointer$.base_165|) (= (store |v_#memory_$Pointer$.base_162| 9 (store (select |v_#memory_$Pointer$.base_162| 9) 4 (select (select |v_#memory_$Pointer$.base_166| 9) 4))) |v_#memory_$Pointer$.base_166|) (= (store (store |v_#memory_$Pointer$.base_163| 7 (let ((.cse9 (let ((.cse10 (let ((.cse11 (store (select |v_#memory_$Pointer$.base_163| 7) 16 (select (select |v_#memory_$Pointer$.base_163| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) 16)))) (store .cse11 20 (select (select (store |v_#memory_$Pointer$.base_163| 7 .cse11) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) 20))))) (store .cse10 24 (select (select (store |v_#memory_$Pointer$.base_163| 7 .cse10) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) 24))))) (store .cse9 28 (select (select (store |v_#memory_$Pointer$.base_163| 7 .cse9) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) 28)))) 8 (store (select |v_#memory_$Pointer$.base_163| 8) 1 (select (select |v_#memory_$Pointer$.base_162| 8) 1))) |v_#memory_$Pointer$.base_162|) (= |v_#memory_$Pointer$.base_163| (store |v_#memory_$Pointer$.base_160| 6 (store .cse12 7 (select (select |v_#memory_$Pointer$.base_163| 6) 7)))) (= (store |v_#memory_$Pointer$.base_164| 6 (store .cse8 6 (select .cse12 6))) |v_#memory_$Pointer$.base_160|)))) (= 3 |c_~#__CS_thread_allocated~0.base|) (exists ((|v_#memory_$Pointer$.offset_159| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_160| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_161| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_162| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_163| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_164| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_165| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_264| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_166| (Array Int (Array Int Int)))) (let ((.cse13 (select |v_#memory_$Pointer$.offset_163| 6)) (.cse15 (select |v_#memory_$Pointer$.offset_166| 6)) (.cse14 (select |v_#memory_$Pointer$.offset_160| 6))) (and (= (store |v_#memory_$Pointer$.offset_163| 6 (store .cse13 7 (select (select |v_#memory_$Pointer$.offset_165| 6) 7))) |v_#memory_$Pointer$.offset_165|) (= |v_#memory_$Pointer$.offset_162| (store |v_#memory_$Pointer$.offset_159| 4 (store (select |v_#memory_$Pointer$.offset_159| 4) 0 (select (select |v_#memory_$Pointer$.offset_162| 4) 0)))) (= (store |v_#memory_$Pointer$.offset_160| 6 (store .cse14 6 (select .cse13 6))) |v_#memory_$Pointer$.offset_163|) (= (store (store |v_#memory_$Pointer$.offset_164| 5 (store (select |v_#memory_$Pointer$.offset_164| 5) 0 |#funAddr~main_thread.offset|)) 3 (store (select |v_#memory_$Pointer$.offset_164| 3) 0 (select (select |c_#memory_$Pointer$.offset| 3) 0))) |c_#memory_$Pointer$.offset|) (= (store |v_#memory_$Pointer$.offset_264| 6 (store (select |v_#memory_$Pointer$.offset_264| 6) 4 (select .cse15 4))) |v_#memory_$Pointer$.offset_166|) (= |v_#memory_$Pointer$.offset_159| (store |v_#memory_$Pointer$.offset_161| 9 (store (select |v_#memory_$Pointer$.offset_161| 9) 4 (select (select |v_#memory_$Pointer$.offset_159| 9) 4)))) (= (store (store |v_#memory_$Pointer$.offset_165| 7 (let ((.cse16 (let ((.cse17 (let ((.cse18 (store (select |v_#memory_$Pointer$.offset_165| 7) 16 (select (select |v_#memory_$Pointer$.offset_165| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) 16)))) (store .cse18 20 (select (select (store |v_#memory_$Pointer$.offset_165| 7 .cse18) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) 20))))) (store .cse17 24 (select (select (store |v_#memory_$Pointer$.offset_165| 7 .cse17) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) 24))))) (store .cse16 28 (select (select (store |v_#memory_$Pointer$.offset_165| 7 .cse16) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) 28)))) 8 (store (select |v_#memory_$Pointer$.offset_165| 8) 1 (select (select |v_#memory_$Pointer$.offset_161| 8) 1))) |v_#memory_$Pointer$.offset_161|) (= (store |v_#memory_$Pointer$.offset_162| 6 (store (select |v_#memory_$Pointer$.offset_162| 6) 0 (select (select |v_#memory_$Pointer$.offset_164| 6) 0))) |v_#memory_$Pointer$.offset_164|) (= (store |v_#memory_$Pointer$.offset_166| 6 (store .cse15 5 (select .cse14 5))) |v_#memory_$Pointer$.offset_160|)))) (<= 2 |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.base|) (= 7 |c_~#__CS_thread_lockedon~0.base|) (= |c_~#mutex~0.offset| 0) (= c_~__CS_error~0 0) (= c_~__THREAD_UNUSED~0 0) (= |c_~#__CS_thread_status~0.base| 6) (= 9 |c_~#data~0.base|) (= 1 c_~__THREAD_RUNNING~0) (= |c_~#__CS_thread_status~0.offset| 0) (<= 2 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) (= |c_~#__CS_thread~0.base| 5) (= |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.offset| 0) (<= 2 |c_ULTIMATE.start_main_~#__CS_cp_data~0#1.base|) (= c_~__CS_thread_index~0 0) (= |c_~#__CS_thread_allocated~0.offset| 0) (= |c_ULTIMATE.start_main_~#__CS_cp_mutex~0#1.offset| 0) (= c_~__CS_ret_PREEMPTED~0 1) (= |c_~#__CS_thread_lockedon~0.offset| 0) (= |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.offset| 0) (= |c_~#data~0.offset| 0)) is different from false [2024-11-14 05:07:03,668 WARN L286 SmtUtils]: Spent 3.14m on a formula simplification. DAG size of input: 351 DAG size of output: 340 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:10:50,930 WARN L286 SmtUtils]: Spent 3.58m on a formula simplification. DAG size of input: 355 DAG size of output: 344 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:10:50,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [579583457] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:10:50,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:10:50,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [4, 4, 4] total 16 [2024-11-14 05:10:50,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234374187] [2024-11-14 05:10:50,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:10:50,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 05:10:50,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:10:50,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 05:10:50,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=160, Unknown=7, NotChecked=26, Total=240 [2024-11-14 05:10:50,934 INFO L87 Difference]: Start difference. First operand 128 states and 184 transitions. Second operand has 11 states, 10 states have (on average 2.6) internal successors, (26), 9 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 05:10:53,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:10:56,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:10:58,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:11:00,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:11:02,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:11:04,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:11:06,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:11:08,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:11:10,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:11:12,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:11:13,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:14:30,820 WARN L286 SmtUtils]: Spent 2.97m on a formula simplification. DAG size of input: 338 DAG size of output: 324 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:14:32,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:14:34,842 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:14:37,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:14:39,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:14:41,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:14:43,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:14:45,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:14:48,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:14:50,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:14:52,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:14:55,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:14:57,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:14:59,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:15:01,895 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:15:04,113 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:15:06,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:15:08,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:15:10,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:15:10,923 INFO L93 Difference]: Finished difference Result 247 states and 357 transitions. [2024-11-14 05:15:10,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-14 05:15:10,924 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.6) internal successors, (26), 9 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 38 [2024-11-14 05:15:10,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:15:10,927 INFO L225 Difference]: With dead ends: 247 [2024-11-14 05:15:10,928 INFO L226 Difference]: Without dead ends: 130 [2024-11-14 05:15:10,930 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 102 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 786.8s TimeCoverageRelationStatistics Valid=50, Invalid=181, Unknown=13, NotChecked=28, Total=272 [2024-11-14 05:15:10,931 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 1 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 2 mSolverCounterUnsat, 23 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 62.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 23 IncrementalHoareTripleChecker+Unknown, 79 IncrementalHoareTripleChecker+Unchecked, 63.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:15:10,932 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 589 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 417 Invalid, 23 Unknown, 79 Unchecked, 63.1s Time] [2024-11-14 05:15:10,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2024-11-14 05:15:10,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2024-11-14 05:15:10,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 83 states have (on average 1.3493975903614457) internal successors, (112), 86 states have internal predecessors, (112), 37 states have call successors, (37), 7 states have call predecessors, (37), 6 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-14 05:15:10,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 185 transitions. [2024-11-14 05:15:10,966 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 185 transitions. Word has length 38 [2024-11-14 05:15:10,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:15:10,966 INFO L471 AbstractCegarLoop]: Abstraction has 130 states and 185 transitions. [2024-11-14 05:15:10,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.6) internal successors, (26), 9 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 05:15:10,967 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 185 transitions. [2024-11-14 05:15:10,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-14 05:15:10,973 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:15:10,974 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:15:11,001 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8fb9e0-9f21-4fb7-9baf-a859004137e9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-14 05:15:11,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8fb9e0-9f21-4fb7-9baf-a859004137e9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-14 05:15:11,175 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ##fun~$Pointer$~TO~$Pointer$Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-14 05:15:11,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:15:11,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1434039137, now seen corresponding path program 1 times [2024-11-14 05:15:11,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:15:11,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114117483] [2024-11-14 05:15:11,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:15:11,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:15:11,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:15:11,490 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-14 05:15:11,491 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:15:11,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114117483] [2024-11-14 05:15:11,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114117483] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:15:11,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1029382053] [2024-11-14 05:15:11,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:15:11,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:15:11,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8fb9e0-9f21-4fb7-9baf-a859004137e9/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:15:11,494 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8fb9e0-9f21-4fb7-9baf-a859004137e9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:15:11,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8fb9e0-9f21-4fb7-9baf-a859004137e9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-14 05:15:11,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:15:11,846 INFO L255 TraceCheckSpWp]: Trace formula consists of 707 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 05:15:11,849 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:15:11,869 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 05:15:11,869 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:15:11,951 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-14 05:15:11,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1029382053] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:15:11,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [637261615] [2024-11-14 05:15:11,954 INFO L159 IcfgInterpreter]: Started Sifa with 44 locations of interest [2024-11-14 05:15:11,954 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:15:11,957 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:15:11,958 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:15:11,958 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs