./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-tiling/pnr2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168c1861-bf18-44dc-b6b7-564c4be9817a/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168c1861-bf18-44dc-b6b7-564c4be9817a/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168c1861-bf18-44dc-b6b7-564c4be9817a/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168c1861-bf18-44dc-b6b7-564c4be9817a/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-tiling/pnr2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168c1861-bf18-44dc-b6b7-564c4be9817a/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168c1861-bf18-44dc-b6b7-564c4be9817a/bin/utaipan-verify-YMUCfTKeje --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 67f3347d26557d25fb6343192d3c90918276f96e14a8e5c63bb68c9eaee65f5f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:02:36,859 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:02:36,969 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168c1861-bf18-44dc-b6b7-564c4be9817a/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 07:02:36,974 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:02:36,975 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:02:37,021 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:02:37,022 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:02:37,022 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:02:37,023 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:02:37,025 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:02:37,026 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:02:37,026 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:02:37,027 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:02:37,027 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 07:02:37,028 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:02:37,028 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:02:37,029 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 07:02:37,029 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 07:02:37,029 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:02:37,034 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 07:02:37,034 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 07:02:37,039 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 07:02:37,040 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:02:37,040 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:02:37,040 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 07:02:37,041 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 07:02:37,041 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 07:02:37,060 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:02:37,061 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:02:37,062 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:02:37,062 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:02:37,062 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:02:37,063 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 07:02:37,064 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 07:02:37,064 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 07:02:37,065 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:02:37,066 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:02:37,066 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:02:37,067 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:02:37,067 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:02:37,068 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:02:37,068 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:02:37,069 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:02:37,069 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:02:37,070 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 07:02:37,070 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 07:02:37,070 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:02:37,071 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:02:37,071 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 07:02:37,071 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168c1861-bf18-44dc-b6b7-564c4be9817a/bin/utaipan-verify-YMUCfTKeje/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168c1861-bf18-44dc-b6b7-564c4be9817a/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 67f3347d26557d25fb6343192d3c90918276f96e14a8e5c63bb68c9eaee65f5f [2024-11-09 07:02:37,450 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:02:37,488 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:02:37,492 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:02:37,494 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:02:37,494 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:02:37,496 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168c1861-bf18-44dc-b6b7-564c4be9817a/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/array-tiling/pnr2.c Unable to find full path for "g++" [2024-11-09 07:02:39,725 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:02:39,958 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:02:39,959 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168c1861-bf18-44dc-b6b7-564c4be9817a/sv-benchmarks/c/array-tiling/pnr2.c [2024-11-09 07:02:39,970 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168c1861-bf18-44dc-b6b7-564c4be9817a/bin/utaipan-verify-YMUCfTKeje/data/ae7d274c0/93138607dce94c6f9f0f05243eef3d89/FLAG81cdf4e1a [2024-11-09 07:02:39,990 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168c1861-bf18-44dc-b6b7-564c4be9817a/bin/utaipan-verify-YMUCfTKeje/data/ae7d274c0/93138607dce94c6f9f0f05243eef3d89 [2024-11-09 07:02:39,997 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:02:39,999 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:02:40,004 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:02:40,005 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:02:40,012 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:02:40,013 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:02:39" (1/1) ... [2024-11-09 07:02:40,014 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d4a3c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:02:40, skipping insertion in model container [2024-11-09 07:02:40,015 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:02:39" (1/1) ... [2024-11-09 07:02:40,051 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:02:40,340 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:02:40,357 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:02:40,395 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:02:40,424 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:02:40,425 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:02:40 WrapperNode [2024-11-09 07:02:40,425 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:02:40,427 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:02:40,428 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:02:40,428 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:02:40,437 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:02:40" (1/1) ... [2024-11-09 07:02:40,446 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:02:40" (1/1) ... [2024-11-09 07:02:40,484 INFO L138 Inliner]: procedures = 17, calls = 25, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 99 [2024-11-09 07:02:40,487 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:02:40,488 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:02:40,488 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:02:40,489 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:02:40,502 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:02:40" (1/1) ... [2024-11-09 07:02:40,502 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:02:40" (1/1) ... [2024-11-09 07:02:40,509 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:02:40" (1/1) ... [2024-11-09 07:02:40,510 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:02:40" (1/1) ... [2024-11-09 07:02:40,523 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:02:40" (1/1) ... [2024-11-09 07:02:40,527 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:02:40" (1/1) ... [2024-11-09 07:02:40,533 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:02:40" (1/1) ... [2024-11-09 07:02:40,534 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:02:40" (1/1) ... [2024-11-09 07:02:40,537 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:02:40,537 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:02:40,541 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:02:40,541 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:02:40,542 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:02:40" (1/1) ... [2024-11-09 07:02:40,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:02:40,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168c1861-bf18-44dc-b6b7-564c4be9817a/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:02:40,587 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168c1861-bf18-44dc-b6b7-564c4be9817a/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 07:02:40,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168c1861-bf18-44dc-b6b7-564c4be9817a/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 07:02:40,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:02:40,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 07:02:40,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 07:02:40,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 07:02:40,632 INFO L130 BoogieDeclarations]: Found specification of procedure ReadFromPort [2024-11-09 07:02:40,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadFromPort [2024-11-09 07:02:40,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:02:40,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:02:40,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 07:02:40,727 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:02:40,730 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:02:41,097 INFO L? ?]: Removed 38 outVars from TransFormulas that were not future-live. [2024-11-09 07:02:41,098 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:02:41,181 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:02:41,181 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 07:02:41,182 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:02:41 BoogieIcfgContainer [2024-11-09 07:02:41,186 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:02:41,189 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:02:41,190 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:02:41,194 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:02:41,194 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:02:39" (1/3) ... [2024-11-09 07:02:41,195 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@493f8200 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:02:41, skipping insertion in model container [2024-11-09 07:02:41,196 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:02:40" (2/3) ... [2024-11-09 07:02:41,196 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@493f8200 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:02:41, skipping insertion in model container [2024-11-09 07:02:41,197 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:02:41" (3/3) ... [2024-11-09 07:02:41,198 INFO L112 eAbstractionObserver]: Analyzing ICFG pnr2.c [2024-11-09 07:02:41,220 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:02:41,220 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2024-11-09 07:02:41,292 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:02:41,299 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;@7181d507, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:02:41,300 INFO L334 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2024-11-09 07:02:41,305 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 38 states have (on average 1.7894736842105263) internal successors, (68), 60 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:02:41,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-09 07:02:41,312 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:02:41,313 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-09 07:02:41,313 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-09 07:02:41,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:02:41,319 INFO L85 PathProgramCache]: Analyzing trace with hash 4837077, now seen corresponding path program 1 times [2024-11-09 07:02:41,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:02:41,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380161615] [2024-11-09 07:02:41,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:02:41,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:02:41,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:02:41,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:02:41,982 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:02:41,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380161615] [2024-11-09 07:02:41,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380161615] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:02:41,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:02:41,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:02:41,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433353634] [2024-11-09 07:02:41,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:02:41,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:02:41,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:02:42,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:02:42,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:02:42,036 INFO L87 Difference]: Start difference. First operand has 64 states, 38 states have (on average 1.7894736842105263) internal successors, (68), 60 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 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) [2024-11-09 07:02:42,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:02:42,158 INFO L93 Difference]: Finished difference Result 80 states and 87 transitions. [2024-11-09 07:02:42,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:02:42,162 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 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 [2024-11-09 07:02:42,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:02:42,169 INFO L225 Difference]: With dead ends: 80 [2024-11-09 07:02:42,169 INFO L226 Difference]: Without dead ends: 59 [2024-11-09 07:02:42,172 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:02:42,176 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 67 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:02:42,178 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 59 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:02:42,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2024-11-09 07:02:42,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2024-11-09 07:02:42,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 35 states have (on average 1.6857142857142857) internal successors, (59), 55 states have internal predecessors, (59), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:02:42,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 63 transitions. [2024-11-09 07:02:42,230 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 63 transitions. Word has length 4 [2024-11-09 07:02:42,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:02:42,230 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 63 transitions. [2024-11-09 07:02:42,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 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) [2024-11-09 07:02:42,231 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 63 transitions. [2024-11-09 07:02:42,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-09 07:02:42,232 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:02:42,232 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-09 07:02:42,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 07:02:42,233 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-09 07:02:42,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:02:42,234 INFO L85 PathProgramCache]: Analyzing trace with hash 149949443, now seen corresponding path program 1 times [2024-11-09 07:02:42,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:02:42,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409491413] [2024-11-09 07:02:42,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:02:42,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:02:42,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:02:42,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:02:42,646 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:02:42,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409491413] [2024-11-09 07:02:42,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409491413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:02:42,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:02:42,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:02:42,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584765477] [2024-11-09 07:02:42,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:02:42,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:02:42,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:02:42,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:02:42,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:02:42,655 INFO L87 Difference]: Start difference. First operand 59 states and 63 transitions. Second operand has 6 states, 5 states have (on average 1.0) internal successors, (5), 5 states have internal predecessors, (5), 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) [2024-11-09 07:02:42,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:02:42,795 INFO L93 Difference]: Finished difference Result 59 states and 63 transitions. [2024-11-09 07:02:42,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:02:42,796 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.0) internal successors, (5), 5 states have internal predecessors, (5), 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 5 [2024-11-09 07:02:42,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:02:42,797 INFO L225 Difference]: With dead ends: 59 [2024-11-09 07:02:42,798 INFO L226 Difference]: Without dead ends: 58 [2024-11-09 07:02:42,798 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-09 07:02:42,801 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 112 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:02:42,802 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 52 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:02:42,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-11-09 07:02:42,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2024-11-09 07:02:42,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 35 states have (on average 1.6571428571428573) internal successors, (58), 54 states have internal predecessors, (58), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:02:42,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 62 transitions. [2024-11-09 07:02:42,824 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 62 transitions. Word has length 5 [2024-11-09 07:02:42,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:02:42,825 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 62 transitions. [2024-11-09 07:02:42,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.0) internal successors, (5), 5 states have internal predecessors, (5), 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) [2024-11-09 07:02:42,826 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 62 transitions. [2024-11-09 07:02:42,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-09 07:02:42,829 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:02:42,829 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:02:42,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 07:02:42,830 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-09 07:02:42,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:02:42,831 INFO L85 PathProgramCache]: Analyzing trace with hash -1882395840, now seen corresponding path program 1 times [2024-11-09 07:02:42,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:02:42,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353225570] [2024-11-09 07:02:42,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:02:42,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:02:42,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:02:43,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:02:43,003 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:02:43,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353225570] [2024-11-09 07:02:43,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353225570] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:02:43,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:02:43,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:02:43,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360201271] [2024-11-09 07:02:43,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:02:43,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:02:43,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:02:43,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:02:43,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:02:43,008 INFO L87 Difference]: Start difference. First operand 58 states and 62 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2024-11-09 07:02:43,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:02:43,171 INFO L93 Difference]: Finished difference Result 64 states and 68 transitions. [2024-11-09 07:02:43,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:02:43,174 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 10 [2024-11-09 07:02:43,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:02:43,175 INFO L225 Difference]: With dead ends: 64 [2024-11-09 07:02:43,177 INFO L226 Difference]: Without dead ends: 62 [2024-11-09 07:02:43,178 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:02:43,179 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 1 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:02:43,180 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 125 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:02:43,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-11-09 07:02:43,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2024-11-09 07:02:43,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 39 states have (on average 1.5897435897435896) internal successors, (62), 58 states have internal predecessors, (62), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:02:43,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 66 transitions. [2024-11-09 07:02:43,203 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 66 transitions. Word has length 10 [2024-11-09 07:02:43,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:02:43,204 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 66 transitions. [2024-11-09 07:02:43,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2024-11-09 07:02:43,205 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 66 transitions. [2024-11-09 07:02:43,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-09 07:02:43,207 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:02:43,207 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:02:43,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 07:02:43,208 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-09 07:02:43,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:02:43,213 INFO L85 PathProgramCache]: Analyzing trace with hash 2037273764, now seen corresponding path program 1 times [2024-11-09 07:02:43,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:02:43,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020489770] [2024-11-09 07:02:43,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:02:43,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:02:43,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:02:43,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:02:43,308 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:02:43,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020489770] [2024-11-09 07:02:43,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020489770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:02:43,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:02:43,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:02:43,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592663664] [2024-11-09 07:02:43,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:02:43,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:02:43,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:02:43,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:02:43,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:02:43,315 INFO L87 Difference]: Start difference. First operand 62 states and 66 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 07:02:43,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:02:43,485 INFO L93 Difference]: Finished difference Result 104 states and 113 transitions. [2024-11-09 07:02:43,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:02:43,486 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2024-11-09 07:02:43,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:02:43,488 INFO L225 Difference]: With dead ends: 104 [2024-11-09 07:02:43,488 INFO L226 Difference]: Without dead ends: 88 [2024-11-09 07:02:43,489 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 [2024-11-09 07:02:43,490 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 20 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:02:43,491 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 57 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:02:43,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-11-09 07:02:43,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 87. [2024-11-09 07:02:43,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 62 states have (on average 1.4193548387096775) internal successors, (88), 81 states have internal predecessors, (88), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 07:02:43,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 96 transitions. [2024-11-09 07:02:43,516 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 96 transitions. Word has length 12 [2024-11-09 07:02:43,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:02:43,517 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 96 transitions. [2024-11-09 07:02:43,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 07:02:43,518 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 96 transitions. [2024-11-09 07:02:43,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 07:02:43,519 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:02:43,519 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:02:43,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 07:02:43,519 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-09 07:02:43,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:02:43,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1121470768, now seen corresponding path program 1 times [2024-11-09 07:02:43,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:02:43,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747734162] [2024-11-09 07:02:43,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:02:43,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:02:43,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:02:43,797 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 07:02:43,797 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:02:43,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747734162] [2024-11-09 07:02:43,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747734162] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:02:43,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:02:43,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:02:43,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892577620] [2024-11-09 07:02:43,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:02:43,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:02:43,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:02:43,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:02:43,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:02:43,802 INFO L87 Difference]: Start difference. First operand 87 states and 96 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:02:44,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:02:44,002 INFO L93 Difference]: Finished difference Result 99 states and 108 transitions. [2024-11-09 07:02:44,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:02:44,003 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-09 07:02:44,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:02:44,004 INFO L225 Difference]: With dead ends: 99 [2024-11-09 07:02:44,004 INFO L226 Difference]: Without dead ends: 88 [2024-11-09 07:02:44,005 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:02:44,006 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 108 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:02:44,011 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 46 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:02:44,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-11-09 07:02:44,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 87. [2024-11-09 07:02:44,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 62 states have (on average 1.403225806451613) internal successors, (87), 81 states have internal predecessors, (87), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 07:02:44,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 95 transitions. [2024-11-09 07:02:44,029 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 95 transitions. Word has length 14 [2024-11-09 07:02:44,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:02:44,030 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 95 transitions. [2024-11-09 07:02:44,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:02:44,030 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 95 transitions. [2024-11-09 07:02:44,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-09 07:02:44,033 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:02:44,033 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:02:44,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 07:02:44,034 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-09 07:02:44,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:02:44,035 INFO L85 PathProgramCache]: Analyzing trace with hash 457969322, now seen corresponding path program 1 times [2024-11-09 07:02:44,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:02:44,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646967351] [2024-11-09 07:02:44,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:02:44,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:02:44,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:02:44,160 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 07:02:44,161 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:02:44,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646967351] [2024-11-09 07:02:44,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646967351] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:02:44,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:02:44,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:02:44,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301681787] [2024-11-09 07:02:44,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:02:44,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:02:44,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:02:44,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:02:44,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:02:44,164 INFO L87 Difference]: Start difference. First operand 87 states and 95 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 07:02:44,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:02:44,311 INFO L93 Difference]: Finished difference Result 92 states and 100 transitions. [2024-11-09 07:02:44,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:02:44,313 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 26 [2024-11-09 07:02:44,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:02:44,314 INFO L225 Difference]: With dead ends: 92 [2024-11-09 07:02:44,315 INFO L226 Difference]: Without dead ends: 90 [2024-11-09 07:02:44,315 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:02:44,316 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 11 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:02:44,322 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 91 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:02:44,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-09 07:02:44,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2024-11-09 07:02:44,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 65 states have (on average 1.3846153846153846) internal successors, (90), 84 states have internal predecessors, (90), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 07:02:44,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 98 transitions. [2024-11-09 07:02:44,346 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 98 transitions. Word has length 26 [2024-11-09 07:02:44,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:02:44,346 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 98 transitions. [2024-11-09 07:02:44,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 07:02:44,347 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 98 transitions. [2024-11-09 07:02:44,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-09 07:02:44,348 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:02:44,348 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:02:44,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 07:02:44,349 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-09 07:02:44,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:02:44,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1089943293, now seen corresponding path program 1 times [2024-11-09 07:02:44,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:02:44,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317163648] [2024-11-09 07:02:44,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:02:44,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:02:44,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:02:44,502 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 07:02:44,502 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:02:44,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317163648] [2024-11-09 07:02:44,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317163648] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:02:44,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [837135409] [2024-11-09 07:02:44,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:02:44,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:02:44,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168c1861-bf18-44dc-b6b7-564c4be9817a/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:02:44,506 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168c1861-bf18-44dc-b6b7-564c4be9817a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:02:44,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168c1861-bf18-44dc-b6b7-564c4be9817a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 07:02:44,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:02:44,608 INFO L255 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 07:02:44,613 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:02:44,756 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 07:02:44,757 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:02:44,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [837135409] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:02:44,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:02:44,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-09 07:02:44,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012106493] [2024-11-09 07:02:44,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:02:44,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:02:44,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:02:44,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:02:44,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-09 07:02:44,763 INFO L87 Difference]: Start difference. First operand 90 states and 98 transitions. Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 07:02:44,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:02:44,962 INFO L93 Difference]: Finished difference Result 90 states and 98 transitions. [2024-11-09 07:02:44,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:02:44,963 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36 [2024-11-09 07:02:44,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:02:44,964 INFO L225 Difference]: With dead ends: 90 [2024-11-09 07:02:44,965 INFO L226 Difference]: Without dead ends: 81 [2024-11-09 07:02:44,965 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-09 07:02:44,966 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 30 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:02:44,966 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 84 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:02:44,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-11-09 07:02:44,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2024-11-09 07:02:44,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 65 states have (on average 1.2461538461538462) internal successors, (81), 75 states have internal predecessors, (81), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 07:02:44,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 89 transitions. [2024-11-09 07:02:44,986 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 89 transitions. Word has length 36 [2024-11-09 07:02:44,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:02:44,986 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 89 transitions. [2024-11-09 07:02:44,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 07:02:44,987 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 89 transitions. [2024-11-09 07:02:44,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-09 07:02:44,991 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:02:44,991 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:02:45,015 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168c1861-bf18-44dc-b6b7-564c4be9817a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 07:02:45,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168c1861-bf18-44dc-b6b7-564c4be9817a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-09 07:02:45,192 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-09 07:02:45,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:02:45,193 INFO L85 PathProgramCache]: Analyzing trace with hash -571496215, now seen corresponding path program 1 times [2024-11-09 07:02:45,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:02:45,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815773095] [2024-11-09 07:02:45,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:02:45,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:02:45,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:02:45,306 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 07:02:45,306 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:02:45,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815773095] [2024-11-09 07:02:45,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815773095] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:02:45,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318069506] [2024-11-09 07:02:45,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:02:45,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:02:45,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168c1861-bf18-44dc-b6b7-564c4be9817a/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:02:45,309 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168c1861-bf18-44dc-b6b7-564c4be9817a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:02:45,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168c1861-bf18-44dc-b6b7-564c4be9817a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 07:02:45,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:02:45,392 INFO L255 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 07:02:45,394 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:02:45,498 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 07:02:45,498 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:02:45,624 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 07:02:45,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [318069506] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:02:45,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2073085066] [2024-11-09 07:02:45,649 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2024-11-09 07:02:45,649 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:02:45,654 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:02:45,660 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:02:45,661 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:02:50,561 INFO L197 IcfgInterpreter]: Interpreting procedure ReadFromPort with input of size 12 for LOIs [2024-11-09 07:02:50,564 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:03:19,636 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1669#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= ~MAX~0 100000) (= |ULTIMATE.start_main_~DEFAULTVAL~0#1| 0) (<= 2 ~SIZE~0) (<= |ULTIMATE.start_main_~value~0#1| 2147483647) (= 10 |ULTIMATE.start_main_~FIXEDVAL~0#1|) (<= ~SIZE~0 99999) (not (= 0 |ULTIMATE.start_main_~value~0#1|)) (<= 0 (+ 2147483648 |ULTIMATE.start_main_~value~0#1|)))' at error location [2024-11-09 07:03:19,636 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:03:19,636 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:03:19,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-09 07:03:19,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402511932] [2024-11-09 07:03:19,637 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:03:19,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 07:03:19,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:03:19,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 07:03:19,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=634, Unknown=11, NotChecked=0, Total=756 [2024-11-09 07:03:19,640 INFO L87 Difference]: Start difference. First operand 81 states and 89 transitions. Second operand has 10 states, 9 states have (on average 8.222222222222221) internal successors, (74), 10 states have internal predecessors, (74), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-11-09 07:03:19,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:03:19,984 INFO L93 Difference]: Finished difference Result 122 states and 146 transitions. [2024-11-09 07:03:19,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 07:03:19,985 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.222222222222221) internal successors, (74), 10 states have internal predecessors, (74), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) Word has length 37 [2024-11-09 07:03:19,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:03:19,987 INFO L225 Difference]: With dead ends: 122 [2024-11-09 07:03:19,987 INFO L226 Difference]: Without dead ends: 113 [2024-11-09 07:03:19,990 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 86 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 29.1s TimeCoverageRelationStatistics Valid=111, Invalid=634, Unknown=11, NotChecked=0, Total=756 [2024-11-09 07:03:19,991 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 91 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 07:03:19,991 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 97 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 07:03:19,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-09 07:03:20,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2024-11-09 07:03:20,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 100 states have (on average 1.15) internal successors, (115), 104 states have internal predecessors, (115), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 07:03:20,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 129 transitions. [2024-11-09 07:03:20,011 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 129 transitions. Word has length 37 [2024-11-09 07:03:20,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:03:20,014 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 129 transitions. [2024-11-09 07:03:20,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.222222222222221) internal successors, (74), 10 states have internal predecessors, (74), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-11-09 07:03:20,014 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 129 transitions. [2024-11-09 07:03:20,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-09 07:03:20,016 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:03:20,016 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] [2024-11-09 07:03:20,042 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168c1861-bf18-44dc-b6b7-564c4be9817a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 07:03:20,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168c1861-bf18-44dc-b6b7-564c4be9817a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-09 07:03:20,217 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-09 07:03:20,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:03:20,217 INFO L85 PathProgramCache]: Analyzing trace with hash -972986647, now seen corresponding path program 1 times [2024-11-09 07:03:20,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:03:20,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258575311] [2024-11-09 07:03:20,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:03:20,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:03:20,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:03:20,364 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-09 07:03:20,365 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:03:20,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258575311] [2024-11-09 07:03:20,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258575311] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:03:20,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [939586566] [2024-11-09 07:03:20,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:03:20,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:03:20,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168c1861-bf18-44dc-b6b7-564c4be9817a/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:03:20,368 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168c1861-bf18-44dc-b6b7-564c4be9817a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:03:20,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168c1861-bf18-44dc-b6b7-564c4be9817a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 07:03:20,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:03:20,448 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 07:03:20,450 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:03:20,519 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-09 07:03:20,520 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:03:20,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [939586566] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:03:20,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:03:20,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-09 07:03:20,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840243800] [2024-11-09 07:03:20,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:03:20,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:03:20,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:03:20,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:03:20,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-09 07:03:20,523 INFO L87 Difference]: Start difference. First operand 113 states and 129 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 07:03:20,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:03:20,748 INFO L93 Difference]: Finished difference Result 113 states and 129 transitions. [2024-11-09 07:03:20,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:03:20,749 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 38 [2024-11-09 07:03:20,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:03:20,750 INFO L225 Difference]: With dead ends: 113 [2024-11-09 07:03:20,750 INFO L226 Difference]: Without dead ends: 112 [2024-11-09 07:03:20,751 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-09 07:03:20,752 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 51 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:03:20,752 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 54 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:03:20,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-09 07:03:20,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2024-11-09 07:03:20,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 100 states have (on average 1.14) internal successors, (114), 103 states have internal predecessors, (114), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 07:03:20,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 128 transitions. [2024-11-09 07:03:20,761 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 128 transitions. Word has length 38 [2024-11-09 07:03:20,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:03:20,761 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 128 transitions. [2024-11-09 07:03:20,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 07:03:20,762 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 128 transitions. [2024-11-09 07:03:20,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-09 07:03:20,763 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:03:20,763 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:03:20,784 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168c1861-bf18-44dc-b6b7-564c4be9817a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 07:03:20,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168c1861-bf18-44dc-b6b7-564c4be9817a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:03:20,968 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-09 07:03:20,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:03:20,968 INFO L85 PathProgramCache]: Analyzing trace with hash -97814843, now seen corresponding path program 1 times [2024-11-09 07:03:20,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:03:20,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345501619] [2024-11-09 07:03:20,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:03:20,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:03:20,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:03:21,174 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-09 07:03:21,174 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:03:21,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345501619] [2024-11-09 07:03:21,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345501619] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:03:21,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [513663525] [2024-11-09 07:03:21,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:03:21,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:03:21,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168c1861-bf18-44dc-b6b7-564c4be9817a/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:03:21,177 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168c1861-bf18-44dc-b6b7-564c4be9817a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:03:21,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168c1861-bf18-44dc-b6b7-564c4be9817a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 07:03:21,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:03:21,246 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 07:03:21,247 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:03:21,315 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-09 07:03:21,315 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:03:21,425 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-09 07:03:21,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [513663525] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:03:21,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [604269205] [2024-11-09 07:03:21,429 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2024-11-09 07:03:21,429 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:03:21,430 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:03:21,430 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:03:21,430 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:03:24,781 INFO L197 IcfgInterpreter]: Interpreting procedure ReadFromPort with input of size 12 for LOIs [2024-11-09 07:03:24,785 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:03:51,580 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2566#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= ~MAX~0 100000) (= |ULTIMATE.start_main_~DEFAULTVAL~0#1| 0) (<= 2 ~SIZE~0) (= 10 |ULTIMATE.start_main_~FIXEDVAL~0#1|) (<= ~SIZE~0 99999))' at error location [2024-11-09 07:03:51,580 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:03:51,581 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:03:51,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-09 07:03:51,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604495356] [2024-11-09 07:03:51,581 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:03:51,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 07:03:51,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:03:51,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 07:03:51,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=880, Unknown=10, NotChecked=0, Total=1056 [2024-11-09 07:03:51,583 INFO L87 Difference]: Start difference. First operand 112 states and 128 transitions. Second operand has 12 states, 11 states have (on average 4.181818181818182) internal successors, (46), 12 states have internal predecessors, (46), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 07:03:51,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:03:51,885 INFO L93 Difference]: Finished difference Result 125 states and 143 transitions. [2024-11-09 07:03:51,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 07:03:51,886 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.181818181818182) internal successors, (46), 12 states have internal predecessors, (46), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 39 [2024-11-09 07:03:51,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:03:51,887 INFO L225 Difference]: With dead ends: 125 [2024-11-09 07:03:51,887 INFO L226 Difference]: Without dead ends: 124 [2024-11-09 07:03:51,888 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 88 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 457 ImplicationChecksByTransitivity, 26.9s TimeCoverageRelationStatistics Valid=166, Invalid=880, Unknown=10, NotChecked=0, Total=1056 [2024-11-09 07:03:51,889 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 40 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 07:03:51,889 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 98 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 07:03:51,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-11-09 07:03:51,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2024-11-09 07:03:51,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 112 states have (on average 1.125) internal successors, (126), 115 states have internal predecessors, (126), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 07:03:51,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 140 transitions. [2024-11-09 07:03:51,900 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 140 transitions. Word has length 39 [2024-11-09 07:03:51,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:03:51,900 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 140 transitions. [2024-11-09 07:03:51,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.181818181818182) internal successors, (46), 12 states have internal predecessors, (46), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 07:03:51,901 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 140 transitions. [2024-11-09 07:03:51,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-09 07:03:51,902 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:03:51,902 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 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] [2024-11-09 07:03:51,926 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168c1861-bf18-44dc-b6b7-564c4be9817a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 07:03:52,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168c1861-bf18-44dc-b6b7-564c4be9817a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:03:52,104 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-09 07:03:52,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:03:52,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1739835285, now seen corresponding path program 2 times [2024-11-09 07:03:52,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:03:52,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171619829] [2024-11-09 07:03:52,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:03:52,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:03:52,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:03:53,088 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 27 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 07:03:53,088 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:03:53,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171619829] [2024-11-09 07:03:53,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171619829] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:03:53,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [868106957] [2024-11-09 07:03:53,089 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 07:03:53,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:03:53,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168c1861-bf18-44dc-b6b7-564c4be9817a/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:03:53,091 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168c1861-bf18-44dc-b6b7-564c4be9817a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:03:53,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168c1861-bf18-44dc-b6b7-564c4be9817a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 07:03:53,153 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-09 07:03:53,153 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:03:53,154 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 07:03:53,156 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:03:53,370 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-09 07:03:53,370 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:03:53,527 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-09 07:03:53,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [868106957] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:03:53,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1748104717] [2024-11-09 07:03:53,531 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2024-11-09 07:03:53,531 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:03:53,532 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:03:53,532 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:03:53,532 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:03:56,376 INFO L197 IcfgInterpreter]: Interpreting procedure ReadFromPort with input of size 12 for LOIs [2024-11-09 07:03:56,379 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:04:23,049 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3190#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= ~MAX~0 100000) (= |ULTIMATE.start_main_~DEFAULTVAL~0#1| 0) (<= 2 ~SIZE~0) (= 10 |ULTIMATE.start_main_~FIXEDVAL~0#1|) (<= ~SIZE~0 99999))' at error location [2024-11-09 07:04:23,049 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:04:23,049 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:04:23,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 2, 3] total 18 [2024-11-09 07:04:23,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676062315] [2024-11-09 07:04:23,050 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:04:23,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-09 07:04:23,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:04:23,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-09 07:04:23,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=1206, Unknown=10, NotChecked=0, Total=1406 [2024-11-09 07:04:23,053 INFO L87 Difference]: Start difference. First operand 124 states and 140 transitions. Second operand has 18 states, 18 states have (on average 4.277777777777778) internal successors, (77), 18 states have internal predecessors, (77), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 07:04:24,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:04:24,163 INFO L93 Difference]: Finished difference Result 145 states and 162 transitions. [2024-11-09 07:04:24,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 07:04:24,164 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.277777777777778) internal successors, (77), 18 states have internal predecessors, (77), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 51 [2024-11-09 07:04:24,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:04:24,165 INFO L225 Difference]: With dead ends: 145 [2024-11-09 07:04:24,165 INFO L226 Difference]: Without dead ends: 102 [2024-11-09 07:04:24,166 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 129 SyntacticMatches, 5 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 749 ImplicationChecksByTransitivity, 27.5s TimeCoverageRelationStatistics Valid=296, Invalid=2046, Unknown=10, NotChecked=0, Total=2352 [2024-11-09 07:04:24,166 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 175 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 07:04:24,167 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 114 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 07:04:24,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-11-09 07:04:24,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2024-11-09 07:04:24,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 91 states have (on average 1.10989010989011) internal successors, (101), 93 states have internal predecessors, (101), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 07:04:24,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 115 transitions. [2024-11-09 07:04:24,181 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 115 transitions. Word has length 51 [2024-11-09 07:04:24,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:04:24,181 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 115 transitions. [2024-11-09 07:04:24,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.277777777777778) internal successors, (77), 18 states have internal predecessors, (77), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 07:04:24,182 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 115 transitions. [2024-11-09 07:04:24,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-09 07:04:24,183 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:04:24,183 INFO L215 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1] [2024-11-09 07:04:24,204 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168c1861-bf18-44dc-b6b7-564c4be9817a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-09 07:04:24,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168c1861-bf18-44dc-b6b7-564c4be9817a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:04:24,388 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-09 07:04:24,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:04:24,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1094163690, now seen corresponding path program 1 times [2024-11-09 07:04:24,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:04:24,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593805651] [2024-11-09 07:04:24,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:04:24,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:04:24,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:04:24,478 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-09 07:04:24,479 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:04:24,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593805651] [2024-11-09 07:04:24,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593805651] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:04:24,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:04:24,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:04:24,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479166062] [2024-11-09 07:04:24,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:04:24,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:04:24,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:04:24,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:04:24,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:04:24,481 INFO L87 Difference]: Start difference. First operand 102 states and 115 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 07:04:24,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:04:24,590 INFO L93 Difference]: Finished difference Result 102 states and 115 transitions. [2024-11-09 07:04:24,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:04:24,591 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 75 [2024-11-09 07:04:24,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:04:24,592 INFO L225 Difference]: With dead ends: 102 [2024-11-09 07:04:24,592 INFO L226 Difference]: Without dead ends: 101 [2024-11-09 07:04:24,592 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:04:24,593 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 16 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:04:24,593 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 38 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:04:24,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-09 07:04:24,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2024-11-09 07:04:24,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 91 states have (on average 1.098901098901099) internal successors, (100), 92 states have internal predecessors, (100), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 07:04:24,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 114 transitions. [2024-11-09 07:04:24,600 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 114 transitions. Word has length 75 [2024-11-09 07:04:24,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:04:24,600 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 114 transitions. [2024-11-09 07:04:24,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 07:04:24,600 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 114 transitions. [2024-11-09 07:04:24,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-09 07:04:24,602 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:04:24,602 INFO L215 NwaCegarLoop]: trace histogram [7, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2024-11-09 07:04:24,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 07:04:24,602 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-09 07:04:24,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:04:24,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1049556105, now seen corresponding path program 2 times [2024-11-09 07:04:24,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:04:24,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491177598] [2024-11-09 07:04:24,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:04:24,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:04:24,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:04:25,041 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-11-09 07:04:25,042 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:04:25,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491177598] [2024-11-09 07:04:25,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491177598] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:04:25,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [11761847] [2024-11-09 07:04:25,042 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 07:04:25,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:04:25,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168c1861-bf18-44dc-b6b7-564c4be9817a/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:04:25,045 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168c1861-bf18-44dc-b6b7-564c4be9817a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:04:25,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168c1861-bf18-44dc-b6b7-564c4be9817a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 07:04:25,114 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-09 07:04:25,115 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:04:25,116 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 07:04:25,118 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:04:25,637 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-09 07:04:25,638 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:04:25,927 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-11-09 07:04:25,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [11761847] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:04:25,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [134618000] [2024-11-09 07:04:25,930 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2024-11-09 07:04:25,930 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:04:25,930 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:04:25,930 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:04:25,931 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:04:28,295 INFO L197 IcfgInterpreter]: Interpreting procedure ReadFromPort with input of size 59 for LOIs [2024-11-09 07:04:28,308 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:04:50,431 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4262#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= ~MAX~0 100000) (= |ULTIMATE.start_main_~DEFAULTVAL~0#1| 0) (<= 2 ~SIZE~0) (<= |ULTIMATE.start_main_~value~0#1| 2147483647) (= 10 |ULTIMATE.start_main_~FIXEDVAL~0#1|) (<= ~SIZE~0 99999) (not (= 0 |ULTIMATE.start_main_~value~0#1|)) (<= 0 (+ 2147483648 |ULTIMATE.start_main_~value~0#1|)))' at error location [2024-11-09 07:04:50,431 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:04:50,431 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:04:50,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 3] total 8 [2024-11-09 07:04:50,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664322873] [2024-11-09 07:04:50,432 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:04:50,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 07:04:50,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:04:50,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 07:04:50,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=523, Unknown=11, NotChecked=0, Total=702 [2024-11-09 07:04:50,433 INFO L87 Difference]: Start difference. First operand 101 states and 114 transitions. Second operand has 9 states, 8 states have (on average 9.375) internal successors, (75), 9 states have internal predecessors, (75), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-11-09 07:04:50,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:04:50,691 INFO L93 Difference]: Finished difference Result 101 states and 114 transitions. [2024-11-09 07:04:50,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:04:50,692 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.375) internal successors, (75), 9 states have internal predecessors, (75), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) Word has length 85 [2024-11-09 07:04:50,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:04:50,692 INFO L225 Difference]: With dead ends: 101 [2024-11-09 07:04:50,692 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 07:04:50,693 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 233 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 22.4s TimeCoverageRelationStatistics Valid=235, Invalid=684, Unknown=11, NotChecked=0, Total=930 [2024-11-09 07:04:50,694 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 109 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:04:50,694 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 16 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:04:50,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 07:04:50,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 07:04:50,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:04:50,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 07:04:50,695 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 85 [2024-11-09 07:04:50,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:04:50,695 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 07:04:50,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.375) internal successors, (75), 9 states have internal predecessors, (75), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-11-09 07:04:50,695 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 07:04:50,695 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 07:04:50,698 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 22 remaining) [2024-11-09 07:04:50,699 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 22 remaining) [2024-11-09 07:04:50,699 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 22 remaining) [2024-11-09 07:04:50,699 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 22 remaining) [2024-11-09 07:04:50,699 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 22 remaining) [2024-11-09 07:04:50,699 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 22 remaining) [2024-11-09 07:04:50,700 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 22 remaining) [2024-11-09 07:04:50,700 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 22 remaining) [2024-11-09 07:04:50,700 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 22 remaining) [2024-11-09 07:04:50,700 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 22 remaining) [2024-11-09 07:04:50,700 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 22 remaining) [2024-11-09 07:04:50,700 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 22 remaining) [2024-11-09 07:04:50,700 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 22 remaining) [2024-11-09 07:04:50,700 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 22 remaining) [2024-11-09 07:04:50,701 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 22 remaining) [2024-11-09 07:04:50,701 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 22 remaining) [2024-11-09 07:04:50,701 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 22 remaining) [2024-11-09 07:04:50,701 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 22 remaining) [2024-11-09 07:04:50,701 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 22 remaining) [2024-11-09 07:04:50,701 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 22 remaining) [2024-11-09 07:04:50,701 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 22 remaining) [2024-11-09 07:04:50,702 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 22 remaining) [2024-11-09 07:04:50,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168c1861-bf18-44dc-b6b7-564c4be9817a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-09 07:04:50,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168c1861-bf18-44dc-b6b7-564c4be9817a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:04:50,905 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:04:50,906 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 07:04:51,553 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 07:04:51,578 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 07:04:51 BoogieIcfgContainer [2024-11-09 07:04:51,578 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 07:04:51,579 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 07:04:51,579 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 07:04:51,579 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 07:04:51,579 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:02:41" (3/4) ... [2024-11-09 07:04:51,582 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 07:04:51,586 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ReadFromPort [2024-11-09 07:04:51,593 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2024-11-09 07:04:51,595 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-09 07:04:51,596 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-09 07:04:51,596 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 07:04:51,596 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 07:04:51,705 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168c1861-bf18-44dc-b6b7-564c4be9817a/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 07:04:51,705 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168c1861-bf18-44dc-b6b7-564c4be9817a/bin/utaipan-verify-YMUCfTKeje/witness.yml [2024-11-09 07:04:51,705 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 07:04:51,709 INFO L158 Benchmark]: Toolchain (without parser) took 131707.10ms. Allocated memory was 151.0MB in the beginning and 337.6MB in the end (delta: 186.6MB). Free memory was 113.2MB in the beginning and 162.3MB in the end (delta: -49.1MB). Peak memory consumption was 139.1MB. Max. memory is 16.1GB. [2024-11-09 07:04:51,709 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 151.0MB. Free memory is still 119.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 07:04:51,710 INFO L158 Benchmark]: CACSL2BoogieTranslator took 424.88ms. Allocated memory is still 151.0MB. Free memory was 112.7MB in the beginning and 100.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 07:04:51,710 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.00ms. Allocated memory is still 151.0MB. Free memory was 100.1MB in the beginning and 98.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 07:04:51,711 INFO L158 Benchmark]: Boogie Preprocessor took 48.73ms. Allocated memory is still 151.0MB. Free memory was 98.0MB in the beginning and 97.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 07:04:51,711 INFO L158 Benchmark]: RCFGBuilder took 648.52ms. Allocated memory is still 151.0MB. Free memory was 97.0MB in the beginning and 78.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-09 07:04:51,711 INFO L158 Benchmark]: TraceAbstraction took 130388.77ms. Allocated memory was 151.0MB in the beginning and 337.6MB in the end (delta: 186.6MB). Free memory was 77.6MB in the beginning and 167.6MB in the end (delta: -90.0MB). Peak memory consumption was 97.1MB. Max. memory is 16.1GB. [2024-11-09 07:04:51,712 INFO L158 Benchmark]: Witness Printer took 126.79ms. Allocated memory is still 337.6MB. Free memory was 167.6MB in the beginning and 162.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-09 07:04:51,714 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 151.0MB. Free memory is still 119.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 424.88ms. Allocated memory is still 151.0MB. Free memory was 112.7MB in the beginning and 100.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.00ms. Allocated memory is still 151.0MB. Free memory was 100.1MB in the beginning and 98.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.73ms. Allocated memory is still 151.0MB. Free memory was 98.0MB in the beginning and 97.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 648.52ms. Allocated memory is still 151.0MB. Free memory was 97.0MB in the beginning and 78.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 130388.77ms. Allocated memory was 151.0MB in the beginning and 337.6MB in the end (delta: 186.6MB). Free memory was 77.6MB in the beginning and 167.6MB in the end (delta: -90.0MB). Peak memory consumption was 97.1MB. Max. memory is 16.1GB. * Witness Printer took 126.79ms. Allocated memory is still 337.6MB. Free memory was 167.6MB in the beginning and 162.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 59]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 59]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 64 locations, 22 error locations. Started 1 CEGAR loops. OverallTime: 129.6s, OverallIterations: 13, TraceHistogramMax: 7, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 843 SdHoareTripleChecker+Valid, 2.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 831 mSDsluCounter, 931 SdHoareTripleChecker+Invalid, 2.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 526 mSDsCounter, 94 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1503 IncrementalHoareTripleChecker+Invalid, 1597 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 94 mSolverCounterUnsat, 405 mSDtfsCounter, 1503 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 784 GetRequests, 614 SyntacticMatches, 9 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1644 ImplicationChecksByTransitivity, 106.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=124occurred in iteration=10, InterpolantAutomatonStates: 77, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 13 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 5.2s InterpolantComputationTime, 718 NumberOfCodeBlocks, 606 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 907 ConstructedInterpolants, 0 QuantifiedInterpolants, 3147 SizeOfPredicates, 4 NumberOfNonLiveVariables, 675 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 23 InterpolantComputations, 9 PerfectInterpolantSequences, 584/719 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 22 specifications checked. All of them hold - InvariantResult [Line: 59]: Loop Invariant Derived loop invariant: ((((((((SIZE >= 0) ? (SIZE % 2) : ((SIZE % 2) + 2)) == 0) && (1 <= i)) && (2 <= SIZE)) && (SIZE <= 99999)) && (MAX <= 100000)) || (((((i == 0) && (((SIZE >= 0) ? (SIZE % 2) : ((SIZE % 2) + 2)) == 0)) && (2 <= SIZE)) && (SIZE <= 99999)) && (MAX <= 100000))) - ProcedureContractResult [Line: 12]: Procedure Contract for ReadFromPort Derived contract for procedure ReadFromPort. Requires: ((((((SIZE >= 0) ? (SIZE % 2) : ((SIZE % 2) + 2)) == 0) && (2 <= SIZE)) && (SIZE <= 99999)) && (MAX <= 100000)) Ensures: (((((((SIZE >= 0) ? (SIZE % 2) : ((SIZE % 2) + 2)) == 0) && (2 <= SIZE)) && (SIZE <= 99999)) && (MAX <= 100000)) && ((SIZE == \old(SIZE)) && (MAX == \old(MAX)))) RESULT: Ultimate proved your program to be correct! [2024-11-09 07:04:51,805 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168c1861-bf18-44dc-b6b7-564c4be9817a/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE