./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/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_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/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_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/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 03c4946022d2e6f710dd6221d8af6a4ec932dc09e858917dba12290a0f27caf9 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 04:47:12,116 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:47:12,248 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 04:47:12,259 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:47:12,262 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:47:12,306 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:47:12,308 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:47:12,309 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:47:12,310 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:47:12,311 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:47:12,312 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 04:47:12,312 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 04:47:12,314 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 04:47:12,314 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 04:47:12,317 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 04:47:12,318 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 04:47:12,318 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 04:47:12,318 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 04:47:12,319 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 04:47:12,319 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 04:47:12,320 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 04:47:12,324 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 04:47:12,325 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:47:12,325 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 04:47:12,326 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 04:47:12,326 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 04:47:12,326 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 04:47:12,327 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:47:12,327 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 04:47:12,327 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:47:12,330 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 04:47:12,331 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:47:12,331 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 04:47:12,331 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 04:47:12,332 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 04:47:12,332 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 04:47:12,332 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:47:12,333 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:47:12,333 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:47:12,334 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:47:12,334 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:47:12,336 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:47:12,337 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:47:12,337 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 04:47:12,338 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 04:47:12,338 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 04:47:12,338 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:47:12,339 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 04:47:12,339 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 04:47:12,339 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_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03c4946022d2e6f710dd6221d8af6a4ec932dc09e858917dba12290a0f27caf9 [2024-11-09 04:47:12,715 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:47:12,757 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:47:12,761 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:47:12,763 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:47:12,764 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:47:12,765 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound5.c Unable to find full path for "g++" [2024-11-09 04:47:15,061 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:47:15,268 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:47:15,269 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound5.c [2024-11-09 04:47:15,278 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/data/20b7b50ee/94018931a63f41d48d80c13af9f064f2/FLAG57c17e58d [2024-11-09 04:47:15,295 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/data/20b7b50ee/94018931a63f41d48d80c13af9f064f2 [2024-11-09 04:47:15,301 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:47:15,305 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:47:15,309 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:47:15,310 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:47:15,317 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:47:15,318 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:47:15" (1/1) ... [2024-11-09 04:47:15,319 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36c358a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:47:15, skipping insertion in model container [2024-11-09 04:47:15,320 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:47:15" (1/1) ... [2024-11-09 04:47:15,345 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:47:15,681 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:47:15,700 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:47:15,727 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:47:15,753 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:47:15,754 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:47:15 WrapperNode [2024-11-09 04:47:15,754 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:47:15,756 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:47:15,756 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:47:15,756 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:47:15,766 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:47:15" (1/1) ... [2024-11-09 04:47:15,775 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:47:15" (1/1) ... [2024-11-09 04:47:15,802 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 67 [2024-11-09 04:47:15,802 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:47:15,803 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:47:15,803 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:47:15,803 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:47:15,814 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:47:15" (1/1) ... [2024-11-09 04:47:15,814 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:47:15" (1/1) ... [2024-11-09 04:47:15,816 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:47:15" (1/1) ... [2024-11-09 04:47:15,816 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:47:15" (1/1) ... [2024-11-09 04:47:15,820 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:47:15" (1/1) ... [2024-11-09 04:47:15,824 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:47:15" (1/1) ... [2024-11-09 04:47:15,825 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:47:15" (1/1) ... [2024-11-09 04:47:15,826 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:47:15" (1/1) ... [2024-11-09 04:47:15,828 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:47:15,829 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:47:15,829 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:47:15,829 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:47:15,830 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:47:15" (1/1) ... [2024-11-09 04:47:15,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:47:15,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:47:15,877 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 04:47:15,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 04:47:15,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:47:15,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 04:47:15,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:47:15,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:47:15,918 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 04:47:15,918 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 04:47:15,991 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:47:15,994 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:47:16,308 INFO L? ?]: Removed 38 outVars from TransFormulas that were not future-live. [2024-11-09 04:47:16,308 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:47:16,374 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:47:16,374 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 04:47:16,374 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:47:16 BoogieIcfgContainer [2024-11-09 04:47:16,375 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:47:16,377 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:47:16,377 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:47:16,380 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:47:16,381 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:47:15" (1/3) ... [2024-11-09 04:47:16,382 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@596c78e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:47:16, skipping insertion in model container [2024-11-09 04:47:16,382 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:47:15" (2/3) ... [2024-11-09 04:47:16,382 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@596c78e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:47:16, skipping insertion in model container [2024-11-09 04:47:16,382 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:47:16" (3/3) ... [2024-11-09 04:47:16,384 INFO L112 eAbstractionObserver]: Analyzing ICFG ps2-ll_unwindbound5.c [2024-11-09 04:47:16,401 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:47:16,402 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2024-11-09 04:47:16,512 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:47:16,522 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;@1c1c9b65, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:47:16,524 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2024-11-09 04:47:16,530 INFO L276 IsEmpty]: Start isEmpty. Operand has 58 states, 30 states have (on average 1.9) internal successors, (57), 54 states have internal predecessors, (57), 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 04:47:16,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-09 04:47:16,537 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:47:16,538 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-09 04:47:16,542 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 04:47:16,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:47:16,551 INFO L85 PathProgramCache]: Analyzing trace with hash 118876, now seen corresponding path program 1 times [2024-11-09 04:47:16,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:47:16,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602126961] [2024-11-09 04:47:16,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:47:16,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:47:16,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:47:16,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:47:16,764 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:47:16,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602126961] [2024-11-09 04:47:16,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602126961] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:47:16,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:47:16,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 04:47:16,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621875411] [2024-11-09 04:47:16,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:47:16,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 04:47:16,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:47:16,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 04:47:16,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 04:47:16,833 INFO L87 Difference]: Start difference. First operand has 58 states, 30 states have (on average 1.9) internal successors, (57), 54 states have internal predecessors, (57), 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 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 04:47:16,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:47:16,870 INFO L93 Difference]: Finished difference Result 78 states and 81 transitions. [2024-11-09 04:47:16,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 04:47:16,877 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2024-11-09 04:47:16,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:47:16,885 INFO L225 Difference]: With dead ends: 78 [2024-11-09 04:47:16,886 INFO L226 Difference]: Without dead ends: 53 [2024-11-09 04:47:16,889 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 04:47:16,895 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 04:47:16,900 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 55 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 04:47:16,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-11-09 04:47:16,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2024-11-09 04:47:16,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 29 states have (on average 1.793103448275862) internal successors, (52), 50 states have internal predecessors, (52), 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 04:47:16,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 54 transitions. [2024-11-09 04:47:16,952 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 54 transitions. Word has length 3 [2024-11-09 04:47:16,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:47:16,952 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 54 transitions. [2024-11-09 04:47:16,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 04:47:16,953 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 54 transitions. [2024-11-09 04:47:16,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-09 04:47:16,953 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:47:16,953 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-09 04:47:16,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 04:47:16,954 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 04:47:16,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:47:16,955 INFO L85 PathProgramCache]: Analyzing trace with hash 117435, now seen corresponding path program 1 times [2024-11-09 04:47:16,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:47:16,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622804689] [2024-11-09 04:47:16,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:47:16,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:47:16,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:47:17,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:47:17,071 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:47:17,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622804689] [2024-11-09 04:47:17,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622804689] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:47:17,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:47:17,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 04:47:17,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251599716] [2024-11-09 04:47:17,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:47:17,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:47:17,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:47:17,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:47:17,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:47:17,077 INFO L87 Difference]: Start difference. First operand 53 states and 54 transitions. Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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 04:47:17,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:47:17,160 INFO L93 Difference]: Finished difference Result 74 states and 75 transitions. [2024-11-09 04:47:17,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 04:47:17,161 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2024-11-09 04:47:17,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:47:17,162 INFO L225 Difference]: With dead ends: 74 [2024-11-09 04:47:17,163 INFO L226 Difference]: Without dead ends: 57 [2024-11-09 04:47:17,163 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:47:17,165 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 4 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 04:47:17,166 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 142 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 04:47:17,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-11-09 04:47:17,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2024-11-09 04:47:17,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 33 states have (on average 1.696969696969697) internal successors, (56), 54 states have internal predecessors, (56), 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 04:47:17,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 58 transitions. [2024-11-09 04:47:17,177 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 58 transitions. Word has length 3 [2024-11-09 04:47:17,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:47:17,178 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 58 transitions. [2024-11-09 04:47:17,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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 04:47:17,178 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 58 transitions. [2024-11-09 04:47:17,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-09 04:47:17,179 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:47:17,180 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:47:17,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 04:47:17,180 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 04:47:17,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:47:17,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1080742626, now seen corresponding path program 1 times [2024-11-09 04:47:17,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:47:17,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071597069] [2024-11-09 04:47:17,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:47:17,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:47:17,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 04:47:17,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1174257282] [2024-11-09 04:47:17,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:47:17,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:47:17,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:47:17,222 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:47:17,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 04:47:17,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:47:17,322 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 04:47:17,330 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:47:17,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:47:17,380 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:47:17,381 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:47:17,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071597069] [2024-11-09 04:47:17,382 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 04:47:17,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1174257282] [2024-11-09 04:47:17,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1174257282] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:47:17,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:47:17,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 04:47:17,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016103438] [2024-11-09 04:47:17,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:47:17,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:47:17,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:47:17,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:47:17,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:47:17,386 INFO L87 Difference]: Start difference. First operand 57 states and 58 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:47:17,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:47:17,509 INFO L93 Difference]: Finished difference Result 89 states and 99 transitions. [2024-11-09 04:47:17,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:47:17,510 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-09 04:47:17,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:47:17,512 INFO L225 Difference]: With dead ends: 89 [2024-11-09 04:47:17,512 INFO L226 Difference]: Without dead ends: 85 [2024-11-09 04:47:17,513 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:47:17,515 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 25 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:47:17,515 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 54 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:47:17,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-11-09 04:47:17,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 73. [2024-11-09 04:47:17,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 48 states have (on average 1.6666666666666667) internal successors, (80), 69 states have internal predecessors, (80), 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 04:47:17,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 84 transitions. [2024-11-09 04:47:17,528 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 84 transitions. Word has length 7 [2024-11-09 04:47:17,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:47:17,529 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 84 transitions. [2024-11-09 04:47:17,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:47:17,530 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 84 transitions. [2024-11-09 04:47:17,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 04:47:17,530 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:47:17,531 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:47:17,556 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 04:47:17,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:47:17,735 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 04:47:17,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:47:17,736 INFO L85 PathProgramCache]: Analyzing trace with hash -856716911, now seen corresponding path program 1 times [2024-11-09 04:47:17,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:47:17,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589435926] [2024-11-09 04:47:17,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:47:17,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:47:17,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:47:17,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:47:17,830 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:47:17,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589435926] [2024-11-09 04:47:17,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589435926] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:47:17,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:47:17,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 04:47:17,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353602693] [2024-11-09 04:47:17,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:47:17,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:47:17,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:47:17,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:47:17,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:47:17,834 INFO L87 Difference]: Start difference. First operand 73 states and 84 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:47:17,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:47:17,961 INFO L93 Difference]: Finished difference Result 85 states and 99 transitions. [2024-11-09 04:47:17,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:47:17,963 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-09 04:47:17,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:47:17,964 INFO L225 Difference]: With dead ends: 85 [2024-11-09 04:47:17,964 INFO L226 Difference]: Without dead ends: 83 [2024-11-09 04:47:17,965 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:47:17,967 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 22 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:47:17,967 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 52 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:47:17,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-11-09 04:47:17,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 74. [2024-11-09 04:47:17,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 49 states have (on average 1.6326530612244898) internal successors, (80), 70 states have internal predecessors, (80), 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 04:47:17,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 84 transitions. [2024-11-09 04:47:17,979 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 84 transitions. Word has length 8 [2024-11-09 04:47:17,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:47:17,980 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 84 transitions. [2024-11-09 04:47:17,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:47:17,981 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 84 transitions. [2024-11-09 04:47:17,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 04:47:17,982 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:47:17,982 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:47:17,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 04:47:17,983 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 04:47:17,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:47:17,984 INFO L85 PathProgramCache]: Analyzing trace with hash -788420412, now seen corresponding path program 1 times [2024-11-09 04:47:17,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:47:17,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162341551] [2024-11-09 04:47:17,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:47:17,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:47:17,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:47:18,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:47:18,056 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:47:18,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162341551] [2024-11-09 04:47:18,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162341551] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:47:18,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:47:18,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 04:47:18,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944151641] [2024-11-09 04:47:18,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:47:18,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:47:18,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:47:18,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:47:18,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:47:18,062 INFO L87 Difference]: Start difference. First operand 74 states and 84 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 04:47:18,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:47:18,190 INFO L93 Difference]: Finished difference Result 89 states and 97 transitions. [2024-11-09 04:47:18,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:47:18,191 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2024-11-09 04:47:18,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:47:18,192 INFO L225 Difference]: With dead ends: 89 [2024-11-09 04:47:18,193 INFO L226 Difference]: Without dead ends: 83 [2024-11-09 04:47:18,193 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:47:18,195 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 21 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:47:18,195 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 58 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:47:18,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-11-09 04:47:18,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 78. [2024-11-09 04:47:18,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 53 states have (on average 1.5471698113207548) internal successors, (82), 74 states have internal predecessors, (82), 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 04:47:18,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 86 transitions. [2024-11-09 04:47:18,207 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 86 transitions. Word has length 9 [2024-11-09 04:47:18,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:47:18,207 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 86 transitions. [2024-11-09 04:47:18,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 04:47:18,208 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 86 transitions. [2024-11-09 04:47:18,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 04:47:18,209 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:47:18,209 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:47:18,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 04:47:18,209 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 04:47:18,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:47:18,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1757770074, now seen corresponding path program 1 times [2024-11-09 04:47:18,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:47:18,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592983682] [2024-11-09 04:47:18,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:47:18,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:47:18,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:47:18,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:47:18,330 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:47:18,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592983682] [2024-11-09 04:47:18,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592983682] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:47:18,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:47:18,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 04:47:18,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348866422] [2024-11-09 04:47:18,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:47:18,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:47:18,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:47:18,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:47:18,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:47:18,337 INFO L87 Difference]: Start difference. First operand 78 states and 86 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:47:18,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:47:18,606 INFO L93 Difference]: Finished difference Result 93 states and 102 transitions. [2024-11-09 04:47:18,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 04:47:18,607 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-09 04:47:18,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:47:18,608 INFO L225 Difference]: With dead ends: 93 [2024-11-09 04:47:18,609 INFO L226 Difference]: Without dead ends: 90 [2024-11-09 04:47:18,609 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:47:18,610 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 60 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:47:18,615 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 53 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 04:47:18,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-09 04:47:18,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 84. [2024-11-09 04:47:18,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 59 states have (on average 1.5084745762711864) internal successors, (89), 80 states have internal predecessors, (89), 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 04:47:18,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 93 transitions. [2024-11-09 04:47:18,629 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 93 transitions. Word has length 11 [2024-11-09 04:47:18,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:47:18,629 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 93 transitions. [2024-11-09 04:47:18,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:47:18,630 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 93 transitions. [2024-11-09 04:47:18,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-09 04:47:18,630 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:47:18,630 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:47:18,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 04:47:18,631 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 04:47:18,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:47:18,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1294891896, now seen corresponding path program 1 times [2024-11-09 04:47:18,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:47:18,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598255575] [2024-11-09 04:47:18,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:47:18,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:47:18,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:47:18,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:47:18,825 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:47:18,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598255575] [2024-11-09 04:47:18,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598255575] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:47:18,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:47:18,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 04:47:18,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848439522] [2024-11-09 04:47:18,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:47:18,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:47:18,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:47:18,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:47:18,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:47:18,827 INFO L87 Difference]: Start difference. First operand 84 states and 93 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:47:18,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:47:18,984 INFO L93 Difference]: Finished difference Result 89 states and 94 transitions. [2024-11-09 04:47:18,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:47:18,985 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-09 04:47:18,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:47:18,986 INFO L225 Difference]: With dead ends: 89 [2024-11-09 04:47:18,986 INFO L226 Difference]: Without dead ends: 79 [2024-11-09 04:47:18,987 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 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 04:47:18,987 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 21 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:47:18,988 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 65 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:47:18,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-11-09 04:47:18,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 77. [2024-11-09 04:47:18,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 52 states have (on average 1.5384615384615385) internal successors, (80), 73 states have internal predecessors, (80), 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 04:47:18,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 84 transitions. [2024-11-09 04:47:18,997 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 84 transitions. Word has length 13 [2024-11-09 04:47:18,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:47:18,998 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 84 transitions. [2024-11-09 04:47:18,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:47:18,998 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 84 transitions. [2024-11-09 04:47:18,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-09 04:47:18,999 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:47:18,999 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:47:19,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 04:47:19,001 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 04:47:19,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:47:19,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1775095388, now seen corresponding path program 1 times [2024-11-09 04:47:19,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:47:19,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482685216] [2024-11-09 04:47:19,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:47:19,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:47:19,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:47:19,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:47:19,116 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:47:19,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482685216] [2024-11-09 04:47:19,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482685216] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:47:19,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:47:19,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 04:47:19,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246398962] [2024-11-09 04:47:19,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:47:19,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:47:19,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:47:19,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:47:19,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:47:19,119 INFO L87 Difference]: Start difference. First operand 77 states and 84 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 04:47:19,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:47:19,149 INFO L93 Difference]: Finished difference Result 79 states and 84 transitions. [2024-11-09 04:47:19,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:47:19,149 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 18 [2024-11-09 04:47:19,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:47:19,150 INFO L225 Difference]: With dead ends: 79 [2024-11-09 04:47:19,150 INFO L226 Difference]: Without dead ends: 77 [2024-11-09 04:47:19,151 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 04:47:19,152 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 1 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 04:47:19,152 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 95 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 04:47:19,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-11-09 04:47:19,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2024-11-09 04:47:19,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 52 states have (on average 1.5) internal successors, (78), 73 states have internal predecessors, (78), 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 04:47:19,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 82 transitions. [2024-11-09 04:47:19,162 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 82 transitions. Word has length 18 [2024-11-09 04:47:19,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:47:19,163 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 82 transitions. [2024-11-09 04:47:19,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 04:47:19,164 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 82 transitions. [2024-11-09 04:47:19,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-09 04:47:19,164 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:47:19,165 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:47:19,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 04:47:19,165 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 04:47:19,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:47:19,166 INFO L85 PathProgramCache]: Analyzing trace with hash -388357784, now seen corresponding path program 1 times [2024-11-09 04:47:19,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:47:19,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699697428] [2024-11-09 04:47:19,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:47:19,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:47:19,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:47:19,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:47:19,322 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:47:19,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699697428] [2024-11-09 04:47:19,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699697428] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:47:19,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:47:19,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 04:47:19,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853349806] [2024-11-09 04:47:19,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:47:19,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:47:19,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:47:19,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:47:19,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:47:19,325 INFO L87 Difference]: Start difference. First operand 77 states and 82 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 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 04:47:19,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:47:19,473 INFO L93 Difference]: Finished difference Result 80 states and 86 transitions. [2024-11-09 04:47:19,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:47:19,473 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 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 22 [2024-11-09 04:47:19,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:47:19,474 INFO L225 Difference]: With dead ends: 80 [2024-11-09 04:47:19,474 INFO L226 Difference]: Without dead ends: 79 [2024-11-09 04:47:19,475 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 04:47:19,476 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 1 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:47:19,476 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 68 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:47:19,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-11-09 04:47:19,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 78. [2024-11-09 04:47:19,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 53 states have (on average 1.490566037735849) internal successors, (79), 74 states have internal predecessors, (79), 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 04:47:19,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 83 transitions. [2024-11-09 04:47:19,486 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 83 transitions. Word has length 22 [2024-11-09 04:47:19,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:47:19,487 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 83 transitions. [2024-11-09 04:47:19,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 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 04:47:19,488 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 83 transitions. [2024-11-09 04:47:19,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-09 04:47:19,489 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:47:19,489 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:47:19,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 04:47:19,490 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 04:47:19,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:47:19,490 INFO L85 PathProgramCache]: Analyzing trace with hash 845810663, now seen corresponding path program 1 times [2024-11-09 04:47:19,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:47:19,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663625491] [2024-11-09 04:47:19,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:47:19,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:47:19,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:47:19,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:47:19,604 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:47:19,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663625491] [2024-11-09 04:47:19,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663625491] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:47:19,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:47:19,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 04:47:19,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234038775] [2024-11-09 04:47:19,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:47:19,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:47:19,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:47:19,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:47:19,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:47:19,608 INFO L87 Difference]: Start difference. First operand 78 states and 83 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, (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 04:47:19,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:47:19,710 INFO L93 Difference]: Finished difference Result 80 states and 85 transitions. [2024-11-09 04:47:19,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:47:19,711 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, (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 23 [2024-11-09 04:47:19,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:47:19,711 INFO L225 Difference]: With dead ends: 80 [2024-11-09 04:47:19,712 INFO L226 Difference]: Without dead ends: 79 [2024-11-09 04:47:19,712 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 04:47:19,713 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 0 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:47:19,713 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 55 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:47:19,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-11-09 04:47:19,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2024-11-09 04:47:19,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 54 states have (on average 1.4814814814814814) internal successors, (80), 75 states have internal predecessors, (80), 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 04:47:19,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 84 transitions. [2024-11-09 04:47:19,722 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 84 transitions. Word has length 23 [2024-11-09 04:47:19,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:47:19,722 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 84 transitions. [2024-11-09 04:47:19,722 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, (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 04:47:19,722 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 84 transitions. [2024-11-09 04:47:19,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 04:47:19,723 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:47:19,723 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] [2024-11-09 04:47:19,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 04:47:19,724 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 04:47:19,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:47:19,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1075229353, now seen corresponding path program 1 times [2024-11-09 04:47:19,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:47:19,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399250684] [2024-11-09 04:47:19,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:47:19,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:47:19,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:47:19,840 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:47:19,840 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:47:19,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399250684] [2024-11-09 04:47:19,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399250684] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:47:19,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [365906779] [2024-11-09 04:47:19,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:47:19,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:47:19,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:47:19,843 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:47:19,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 04:47:19,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:47:19,914 INFO L255 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 04:47:19,916 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:47:20,070 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:47:20,070 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:47:20,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [365906779] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:47:20,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 04:47:20,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-09 04:47:20,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349063182] [2024-11-09 04:47:20,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:47:20,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 04:47:20,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:47:20,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 04:47:20,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-09 04:47:20,075 INFO L87 Difference]: Start difference. First operand 79 states and 84 transitions. Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 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 04:47:20,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:47:20,125 INFO L93 Difference]: Finished difference Result 79 states and 84 transitions. [2024-11-09 04:47:20,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:47:20,126 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 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 25 [2024-11-09 04:47:20,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:47:20,127 INFO L225 Difference]: With dead ends: 79 [2024-11-09 04:47:20,127 INFO L226 Difference]: Without dead ends: 78 [2024-11-09 04:47:20,127 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-09 04:47:20,131 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 34 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 04:47:20,132 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 135 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 04:47:20,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-11-09 04:47:20,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2024-11-09 04:47:20,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 54 states have (on average 1.462962962962963) internal successors, (79), 74 states have internal predecessors, (79), 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 04:47:20,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 83 transitions. [2024-11-09 04:47:20,147 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 83 transitions. Word has length 25 [2024-11-09 04:47:20,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:47:20,152 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 83 transitions. [2024-11-09 04:47:20,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 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 04:47:20,153 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 83 transitions. [2024-11-09 04:47:20,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-09 04:47:20,153 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:47:20,154 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:47:20,180 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-09 04:47:20,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-09 04:47:20,355 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 04:47:20,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:47:20,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1027628385, now seen corresponding path program 1 times [2024-11-09 04:47:20,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:47:20,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643127208] [2024-11-09 04:47:20,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:47:20,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:47:20,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:47:20,479 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:47:20,479 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:47:20,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643127208] [2024-11-09 04:47:20,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643127208] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:47:20,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2060777484] [2024-11-09 04:47:20,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:47:20,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:47:20,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:47:20,482 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:47:20,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 04:47:20,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:47:20,544 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 04:47:20,545 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:47:20,647 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:47:20,647 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:47:20,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2060777484] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:47:20,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 04:47:20,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-09 04:47:20,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907516051] [2024-11-09 04:47:20,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:47:20,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 04:47:20,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:47:20,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 04:47:20,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-09 04:47:20,650 INFO L87 Difference]: Start difference. First operand 78 states and 83 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 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 04:47:20,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:47:20,714 INFO L93 Difference]: Finished difference Result 85 states and 86 transitions. [2024-11-09 04:47:20,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 04:47:20,715 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 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 26 [2024-11-09 04:47:20,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:47:20,716 INFO L225 Difference]: With dead ends: 85 [2024-11-09 04:47:20,716 INFO L226 Difference]: Without dead ends: 84 [2024-11-09 04:47:20,716 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:47:20,717 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 30 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 04:47:20,717 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 183 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 04:47:20,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-11-09 04:47:20,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 77. [2024-11-09 04:47:20,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 54 states have (on average 1.4444444444444444) internal successors, (78), 73 states have internal predecessors, (78), 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 04:47:20,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 82 transitions. [2024-11-09 04:47:20,730 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 82 transitions. Word has length 26 [2024-11-09 04:47:20,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:47:20,731 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 82 transitions. [2024-11-09 04:47:20,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 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 04:47:20,731 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 82 transitions. [2024-11-09 04:47:20,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-09 04:47:20,733 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:47:20,734 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 04:47:20,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-09 04:47:20,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:47:20,935 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 04:47:20,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:47:20,935 INFO L85 PathProgramCache]: Analyzing trace with hash 449712366, now seen corresponding path program 1 times [2024-11-09 04:47:20,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:47:20,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422424386] [2024-11-09 04:47:20,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:47:20,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:47:20,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:47:21,054 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:47:21,055 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:47:21,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422424386] [2024-11-09 04:47:21,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422424386] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:47:21,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1915664339] [2024-11-09 04:47:21,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:47:21,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:47:21,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:47:21,058 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:47:21,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 04:47:21,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:47:21,126 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 04:47:21,127 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:47:21,221 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:47:21,221 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:47:21,340 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:47:21,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1915664339] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:47:21,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [224328035] [2024-11-09 04:47:21,366 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2024-11-09 04:47:21,366 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 04:47:21,370 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 04:47:21,375 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 04:47:21,376 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 04:47:24,409 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 34 for LOIs [2024-11-09 04:47:24,422 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 04:47:28,690 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2501#(and (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x~0#1| 9223372036854775807) (<= 1 |ULTIMATE.start_main_~c~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 2147483647) (<= 6 ~counter~0) (exists ((|v_ULTIMATE.start_main_~y~0#1_53| Int)) (and (<= 1 |v_ULTIMATE.start_main_~y~0#1_53|) (= (* 2 |ULTIMATE.start_main_~x~0#1|) (+ |v_ULTIMATE.start_main_~y~0#1_53| (* |v_ULTIMATE.start_main_~y~0#1_53| |v_ULTIMATE.start_main_~y~0#1_53|))) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~y~0#1_53| |v_ULTIMATE.start_main_~y~0#1_53|)))) (<= |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~k~0#1|) (<= ~counter~0 2147483647))' at error location [2024-11-09 04:47:28,691 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 04:47:28,691 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:47:28,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 6] total 13 [2024-11-09 04:47:28,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007509581] [2024-11-09 04:47:28,692 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 04:47:28,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 04:47:28,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:47:28,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 04:47:28,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=737, Unknown=0, NotChecked=0, Total=870 [2024-11-09 04:47:28,694 INFO L87 Difference]: Start difference. First operand 77 states and 82 transitions. Second operand has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 04:47:28,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:47:28,928 INFO L93 Difference]: Finished difference Result 194 states and 200 transitions. [2024-11-09 04:47:28,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 04:47:28,929 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 29 [2024-11-09 04:47:28,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:47:28,930 INFO L225 Difference]: With dead ends: 194 [2024-11-09 04:47:28,930 INFO L226 Difference]: Without dead ends: 179 [2024-11-09 04:47:28,932 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 57 SyntacticMatches, 7 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 547 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=196, Invalid=1064, Unknown=0, NotChecked=0, Total=1260 [2024-11-09 04:47:28,932 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 87 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:47:28,933 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 355 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:47:28,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-09 04:47:28,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 127. [2024-11-09 04:47:28,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 99 states have (on average 1.5252525252525253) internal successors, (151), 118 states have internal predecessors, (151), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 04:47:28,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 159 transitions. [2024-11-09 04:47:28,945 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 159 transitions. Word has length 29 [2024-11-09 04:47:28,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:47:28,946 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 159 transitions. [2024-11-09 04:47:28,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 04:47:28,946 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 159 transitions. [2024-11-09 04:47:28,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-09 04:47:28,947 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:47:28,947 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] [2024-11-09 04:47:28,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-09 04:47:29,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:47:29,152 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 04:47:29,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:47:29,152 INFO L85 PathProgramCache]: Analyzing trace with hash 449713104, now seen corresponding path program 1 times [2024-11-09 04:47:29,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:47:29,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361863120] [2024-11-09 04:47:29,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:47:29,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:47:29,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 04:47:29,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [46366295] [2024-11-09 04:47:29,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:47:29,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:47:29,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:47:29,170 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:47:29,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 04:47:29,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:47:29,233 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 04:47:29,235 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:47:29,300 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:47:29,301 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:47:29,408 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:47:29,408 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:47:29,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361863120] [2024-11-09 04:47:29,409 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 04:47:29,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [46366295] [2024-11-09 04:47:29,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [46366295] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:47:29,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1660898029] [2024-11-09 04:47:29,413 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2024-11-09 04:47:29,413 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 04:47:29,413 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 04:47:29,414 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 04:47:29,414 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 04:47:31,000 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 39 for LOIs [2024-11-09 04:47:31,010 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 04:47:33,430 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3059#(and (<= ~counter~0 5) (exists ((|v_ULTIMATE.start_main_~y~0#1_60| Int)) (and (<= 2 ~counter~0) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x~0#1| 9223372036854775807) (<= 1 |v_ULTIMATE.start_main_~y~0#1_60|) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~y~0#1_60| |v_ULTIMATE.start_main_~y~0#1_60|)) (<= 1 |ULTIMATE.start_main_~c~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 2147483647) (<= |v_ULTIMATE.start_main_~y~0#1_60| |ULTIMATE.start_main_~x~0#1|) (<= 1 |ULTIMATE.start_main_~k~0#1|))))' at error location [2024-11-09 04:47:33,431 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 04:47:33,431 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 04:47:33,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-11-09 04:47:33,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563992947] [2024-11-09 04:47:33,431 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 04:47:33,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 04:47:33,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:47:33,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 04:47:33,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=356, Unknown=0, NotChecked=0, Total=420 [2024-11-09 04:47:33,433 INFO L87 Difference]: Start difference. First operand 127 states and 159 transitions. Second operand has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 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 04:47:33,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:47:33,683 INFO L93 Difference]: Finished difference Result 157 states and 186 transitions. [2024-11-09 04:47:33,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 04:47:33,684 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 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) Word has length 29 [2024-11-09 04:47:33,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:47:33,686 INFO L225 Difference]: With dead ends: 157 [2024-11-09 04:47:33,686 INFO L226 Difference]: Without dead ends: 153 [2024-11-09 04:47:33,687 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 58 SyntacticMatches, 8 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=70, Invalid=392, Unknown=0, NotChecked=0, Total=462 [2024-11-09 04:47:33,688 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 101 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:47:33,688 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 100 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 04:47:33,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-11-09 04:47:33,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 127. [2024-11-09 04:47:33,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 101 states have (on average 1.4257425742574257) internal successors, (144), 118 states have internal predecessors, (144), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 04:47:33,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 152 transitions. [2024-11-09 04:47:33,700 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 152 transitions. Word has length 29 [2024-11-09 04:47:33,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:47:33,700 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 152 transitions. [2024-11-09 04:47:33,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 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 04:47:33,701 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 152 transitions. [2024-11-09 04:47:33,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-09 04:47:33,702 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:47:33,702 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] [2024-11-09 04:47:33,727 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 04:47:33,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-09 04:47:33,903 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 04:47:33,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:47:33,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1056204387, now seen corresponding path program 1 times [2024-11-09 04:47:33,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:47:33,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774066094] [2024-11-09 04:47:33,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:47:33,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:47:33,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:47:34,010 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:47:34,010 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:47:34,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774066094] [2024-11-09 04:47:34,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774066094] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:47:34,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [731885888] [2024-11-09 04:47:34,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:47:34,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:47:34,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:47:34,013 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:47:34,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 04:47:34,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:47:34,066 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 04:47:34,067 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:47:34,190 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:47:34,191 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:47:34,288 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:47:34,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [731885888] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:47:34,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1105511229] [2024-11-09 04:47:34,291 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2024-11-09 04:47:34,291 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 04:47:34,292 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 04:47:34,292 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 04:47:34,292 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 04:47:35,571 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 39 for LOIs [2024-11-09 04:47:35,583 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 04:47:37,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1105511229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:47:37,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:47:37,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [4, 4, 4] total 23 [2024-11-09 04:47:37,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895051533] [2024-11-09 04:47:37,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:47:37,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 04:47:37,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:47:37,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 04:47:37,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=424, Unknown=0, NotChecked=0, Total=552 [2024-11-09 04:47:37,523 INFO L87 Difference]: Start difference. First operand 127 states and 152 transitions. Second operand has 16 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 13 states have internal predecessors, (22), 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 04:47:39,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:47:39,549 INFO L93 Difference]: Finished difference Result 129 states and 155 transitions. [2024-11-09 04:47:39,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-09 04:47:39,550 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 13 states have internal predecessors, (22), 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 30 [2024-11-09 04:47:39,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:47:39,551 INFO L225 Difference]: With dead ends: 129 [2024-11-09 04:47:39,551 INFO L226 Difference]: Without dead ends: 119 [2024-11-09 04:47:39,552 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 62 SyntacticMatches, 8 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 375 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=344, Invalid=988, Unknown=0, NotChecked=0, Total=1332 [2024-11-09 04:47:39,553 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 55 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 04:47:39,553 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 24 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 04:47:39,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-09 04:47:39,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 117. [2024-11-09 04:47:39,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 101 states have (on average 1.1485148514851484) internal successors, (116), 108 states have internal predecessors, (116), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 04:47:39,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 124 transitions. [2024-11-09 04:47:39,566 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 124 transitions. Word has length 30 [2024-11-09 04:47:39,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:47:39,567 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 124 transitions. [2024-11-09 04:47:39,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 13 states have internal predecessors, (22), 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 04:47:39,567 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 124 transitions. [2024-11-09 04:47:39,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-09 04:47:39,568 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:47:39,568 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:47:39,594 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 04:47:39,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:47:39,769 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 04:47:39,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:47:39,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1617402318, now seen corresponding path program 1 times [2024-11-09 04:47:39,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:47:39,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246014400] [2024-11-09 04:47:39,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:47:39,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:47:39,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:47:39,877 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:47:39,877 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:47:39,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246014400] [2024-11-09 04:47:39,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246014400] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:47:39,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1320500653] [2024-11-09 04:47:39,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:47:39,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:47:39,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:47:39,880 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:47:39,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 04:47:39,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:47:39,933 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 04:47:39,935 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:47:40,052 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:47:40,052 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:47:40,143 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:47:40,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1320500653] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:47:40,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [842589463] [2024-11-09 04:47:40,147 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2024-11-09 04:47:40,148 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 04:47:40,149 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 04:47:40,149 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 04:47:40,149 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 04:47:41,277 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 39 for LOIs [2024-11-09 04:47:41,286 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 04:47:43,313 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4088#(and (<= 2 ~counter~0) (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= 1 |ULTIMATE.start_main_~c~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 2147483647) (<= ~counter~0 5) (<= 1 |ULTIMATE.start_main_~k~0#1|) (<= (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|) 9223372036854775807))' at error location [2024-11-09 04:47:43,314 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 04:47:43,314 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:47:43,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-09 04:47:43,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817190129] [2024-11-09 04:47:43,314 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 04:47:43,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 04:47:43,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:47:43,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 04:47:43,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=508, Unknown=0, NotChecked=0, Total=600 [2024-11-09 04:47:43,316 INFO L87 Difference]: Start difference. First operand 117 states and 124 transitions. Second operand has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 10 states have internal predecessors, (77), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 04:47:43,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:47:43,512 INFO L93 Difference]: Finished difference Result 127 states and 135 transitions. [2024-11-09 04:47:43,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 04:47:43,513 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 10 states have internal predecessors, (77), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 31 [2024-11-09 04:47:43,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:47:43,514 INFO L225 Difference]: With dead ends: 127 [2024-11-09 04:47:43,514 INFO L226 Difference]: Without dead ends: 123 [2024-11-09 04:47:43,515 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 63 SyntacticMatches, 9 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 348 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=110, Invalid=592, Unknown=0, NotChecked=0, Total=702 [2024-11-09 04:47:43,515 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 46 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:47:43,516 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 89 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:47:43,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-11-09 04:47:43,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 115. [2024-11-09 04:47:43,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 101 states have (on average 1.0891089108910892) internal successors, (110), 106 states have internal predecessors, (110), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 04:47:43,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 118 transitions. [2024-11-09 04:47:43,527 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 118 transitions. Word has length 31 [2024-11-09 04:47:43,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:47:43,528 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 118 transitions. [2024-11-09 04:47:43,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 10 states have internal predecessors, (77), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 04:47:43,528 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 118 transitions. [2024-11-09 04:47:43,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-09 04:47:43,529 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:47:43,530 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:47:43,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-09 04:47:43,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-09 04:47:43,735 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 04:47:43,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:47:43,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1445606197, now seen corresponding path program 1 times [2024-11-09 04:47:43,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:47:43,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614266312] [2024-11-09 04:47:43,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:47:43,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:47:43,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:47:43,792 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 04:47:43,792 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:47:43,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614266312] [2024-11-09 04:47:43,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614266312] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:47:43,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:47:43,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 04:47:43,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907632920] [2024-11-09 04:47:43,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:47:43,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:47:43,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:47:43,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:47:43,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:47:43,795 INFO L87 Difference]: Start difference. First operand 115 states and 118 transitions. Second operand has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 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 04:47:43,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:47:43,880 INFO L93 Difference]: Finished difference Result 118 states and 120 transitions. [2024-11-09 04:47:43,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:47:43,881 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 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) Word has length 47 [2024-11-09 04:47:43,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:47:43,882 INFO L225 Difference]: With dead ends: 118 [2024-11-09 04:47:43,882 INFO L226 Difference]: Without dead ends: 109 [2024-11-09 04:47:43,883 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 04:47:43,883 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 15 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:47:43,884 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 25 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:47:43,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-09 04:47:43,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2024-11-09 04:47:43,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 95 states have (on average 1.063157894736842) internal successors, (101), 100 states have internal predecessors, (101), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 04:47:43,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 109 transitions. [2024-11-09 04:47:43,909 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 109 transitions. Word has length 47 [2024-11-09 04:47:43,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:47:43,909 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 109 transitions. [2024-11-09 04:47:43,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 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 04:47:43,910 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 109 transitions. [2024-11-09 04:47:43,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-09 04:47:43,911 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:47:43,911 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1] [2024-11-09 04:47:43,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 04:47:43,912 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 04:47:43,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:47:43,912 INFO L85 PathProgramCache]: Analyzing trace with hash 526781838, now seen corresponding path program 2 times [2024-11-09 04:47:43,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:47:43,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62372872] [2024-11-09 04:47:43,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:47:43,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:47:43,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:47:44,163 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 04:47:44,164 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:47:44,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62372872] [2024-11-09 04:47:44,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62372872] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:47:44,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1610281643] [2024-11-09 04:47:44,164 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 04:47:44,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:47:44,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:47:44,167 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:47:44,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 04:47:44,229 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 04:47:44,229 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 04:47:44,230 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 04:47:44,233 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:48:07,721 WARN L873 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~y~0#1| Int)) (let ((.cse0 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|))) (and (= (mod (+ |ULTIMATE.start_main_~y~0#1| .cse0) 2) 0) (<= .cse0 (+ 9223372036854775806 (* 2 |ULTIMATE.start_main_~y~0#1|))) (<= .cse0 9223372036854775807) (<= |c_ULTIMATE.start_main_~x~0#1| (+ |ULTIMATE.start_main_~y~0#1| (div (+ (* (- 1) |ULTIMATE.start_main_~y~0#1|) .cse0) 2)))))) is different from true [2024-11-09 04:48:09,759 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 2 not checked. [2024-11-09 04:48:09,760 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:48:18,115 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-09 04:48:18,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1610281643] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 04:48:18,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 04:48:18,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8, 7] total 18 [2024-11-09 04:48:18,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689788617] [2024-11-09 04:48:18,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:48:18,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 04:48:18,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:48:18,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 04:48:18,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=227, Unknown=4, NotChecked=32, Total=342 [2024-11-09 04:48:18,118 INFO L87 Difference]: Start difference. First operand 109 states and 109 transitions. Second operand has 7 states, 5 states have (on average 7.4) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 04:48:18,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:48:18,425 INFO L93 Difference]: Finished difference Result 109 states and 109 transitions. [2024-11-09 04:48:18,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 04:48:18,426 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 7.4) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 75 [2024-11-09 04:48:18,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:48:18,427 INFO L225 Difference]: With dead ends: 109 [2024-11-09 04:48:18,427 INFO L226 Difference]: Without dead ends: 107 [2024-11-09 04:48:18,428 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 17.6s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=4, NotChecked=38, Total=462 [2024-11-09 04:48:18,428 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 61 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:48:18,429 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 39 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 04:48:18,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-11-09 04:48:18,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2024-11-09 04:48:18,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 95 states have (on average 1.0421052631578946) internal successors, (99), 98 states have internal predecessors, (99), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 04:48:18,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 107 transitions. [2024-11-09 04:48:18,447 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 107 transitions. Word has length 75 [2024-11-09 04:48:18,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:48:18,447 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 107 transitions. [2024-11-09 04:48:18,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 7.4) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 04:48:18,447 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 107 transitions. [2024-11-09 04:48:18,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-09 04:48:18,454 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:48:18,454 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2024-11-09 04:48:18,483 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-09 04:48:18,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-09 04:48:18,655 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 04:48:18,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:48:18,655 INFO L85 PathProgramCache]: Analyzing trace with hash -3527496, now seen corresponding path program 2 times [2024-11-09 04:48:18,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:48:18,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688800694] [2024-11-09 04:48:18,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:48:18,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:48:18,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:48:19,039 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 04:48:19,039 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:48:19,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688800694] [2024-11-09 04:48:19,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688800694] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:48:19,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [107036580] [2024-11-09 04:48:19,040 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 04:48:19,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:48:19,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:48:19,042 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:48:19,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 04:48:19,135 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-09 04:48:19,135 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 04:48:19,137 INFO L255 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 04:48:19,142 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:48:19,357 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:48:19,358 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:48:19,687 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 04:48:19,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [107036580] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:48:19,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [268907529] [2024-11-09 04:48:19,691 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2024-11-09 04:48:19,691 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 04:48:19,691 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 04:48:19,691 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 04:48:19,692 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 04:48:21,003 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 34 for LOIs [2024-11-09 04:48:21,013 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 04:48:25,509 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5945#(and (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x~0#1| 9223372036854775807) (exists ((|v_ULTIMATE.start_main_~y~0#1_85| Int)) (and (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~y~0#1_85| |v_ULTIMATE.start_main_~y~0#1_85|)) (= (* 2 |ULTIMATE.start_main_~x~0#1|) (+ (* |v_ULTIMATE.start_main_~y~0#1_85| |v_ULTIMATE.start_main_~y~0#1_85|) |v_ULTIMATE.start_main_~y~0#1_85|)) (<= 1 |v_ULTIMATE.start_main_~y~0#1_85|))) (<= 1 |ULTIMATE.start_main_~c~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 2147483647) (<= 6 ~counter~0) (<= |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~k~0#1|) (<= ~counter~0 2147483647))' at error location [2024-11-09 04:48:25,509 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 04:48:25,509 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:48:25,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 12] total 15 [2024-11-09 04:48:25,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688415398] [2024-11-09 04:48:25,510 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 04:48:25,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-09 04:48:25,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:48:25,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-09 04:48:25,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=843, Unknown=0, NotChecked=0, Total=992 [2024-11-09 04:48:25,512 INFO L87 Difference]: Start difference. First operand 107 states and 107 transitions. Second operand has 15 states, 15 states have (on average 6.2) internal successors, (93), 15 states have internal predecessors, (93), 4 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-09 04:48:25,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:48:25,786 INFO L93 Difference]: Finished difference Result 138 states and 138 transitions. [2024-11-09 04:48:25,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-09 04:48:25,787 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.2) internal successors, (93), 15 states have internal predecessors, (93), 4 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 95 [2024-11-09 04:48:25,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:48:25,788 INFO L225 Difference]: With dead ends: 138 [2024-11-09 04:48:25,789 INFO L226 Difference]: Without dead ends: 127 [2024-11-09 04:48:25,790 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 234 SyntacticMatches, 32 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1035 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=248, Invalid=1312, Unknown=0, NotChecked=0, Total=1560 [2024-11-09 04:48:25,792 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 17 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:48:25,792 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 254 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:48:25,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-11-09 04:48:25,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2024-11-09 04:48:25,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 113 states have (on average 1.0353982300884956) internal successors, (117), 116 states have internal predecessors, (117), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 04:48:25,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 127 transitions. [2024-11-09 04:48:25,809 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 127 transitions. Word has length 95 [2024-11-09 04:48:25,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:48:25,810 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 127 transitions. [2024-11-09 04:48:25,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.2) internal successors, (93), 15 states have internal predecessors, (93), 4 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-09 04:48:25,810 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 127 transitions. [2024-11-09 04:48:25,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-09 04:48:25,814 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:48:25,814 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1] [2024-11-09 04:48:25,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-09 04:48:26,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:48:26,018 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 04:48:26,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:48:26,019 INFO L85 PathProgramCache]: Analyzing trace with hash -3526758, now seen corresponding path program 2 times [2024-11-09 04:48:26,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:48:26,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581630192] [2024-11-09 04:48:26,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:48:26,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:48:26,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 04:48:26,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [505467262] [2024-11-09 04:48:26,057 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 04:48:26,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:48:26,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:48:26,060 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:48:26,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-09 04:48:26,146 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-09 04:48:26,146 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 04:48:26,147 INFO L255 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 04:48:26,149 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:48:26,316 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 04:48:26,317 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:48:26,643 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 04:48:26,643 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:48:26,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581630192] [2024-11-09 04:48:26,644 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 04:48:26,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [505467262] [2024-11-09 04:48:26,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [505467262] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:48:26,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [372238657] [2024-11-09 04:48:26,646 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2024-11-09 04:48:26,646 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 04:48:26,647 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 04:48:26,647 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 04:48:26,647 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 04:48:27,589 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 39 for LOIs [2024-11-09 04:48:27,597 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 04:48:31,313 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6861#(and (exists ((|v_ULTIMATE.start_main_~y~0#1_98| Int)) (and (<= 2 ~counter~0) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x~0#1| 9223372036854775807) (<= 1 |ULTIMATE.start_main_~c~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 2147483647) (<= |v_ULTIMATE.start_main_~y~0#1_98| |ULTIMATE.start_main_~x~0#1|) (<= 1 |v_ULTIMATE.start_main_~y~0#1_98|) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~y~0#1_98| |v_ULTIMATE.start_main_~y~0#1_98|)) (<= 1 |ULTIMATE.start_main_~k~0#1|))) (<= ~counter~0 5))' at error location [2024-11-09 04:48:31,314 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 04:48:31,314 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 04:48:31,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-11-09 04:48:31,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904177323] [2024-11-09 04:48:31,314 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 04:48:31,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:48:31,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:48:31,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:48:31,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=605, Unknown=0, NotChecked=0, Total=702 [2024-11-09 04:48:31,316 INFO L87 Difference]: Start difference. First operand 127 states and 127 transitions. Second operand has 12 states, 11 states have (on average 15.181818181818182) internal successors, (167), 12 states have internal predecessors, (167), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 04:48:31,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:48:31,992 INFO L93 Difference]: Finished difference Result 265 states and 288 transitions. [2024-11-09 04:48:31,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 04:48:31,993 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 15.181818181818182) internal successors, (167), 12 states have internal predecessors, (167), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 95 [2024-11-09 04:48:31,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:48:31,998 INFO L225 Difference]: With dead ends: 265 [2024-11-09 04:48:31,998 INFO L226 Difference]: Without dead ends: 263 [2024-11-09 04:48:31,999 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 232 SyntacticMatches, 26 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=145, Invalid=785, Unknown=0, NotChecked=0, Total=930 [2024-11-09 04:48:31,999 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 188 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 04:48:32,000 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 338 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 04:48:32,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2024-11-09 04:48:32,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 231. [2024-11-09 04:48:32,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 212 states have (on average 1.0424528301886793) internal successors, (221), 215 states have internal predecessors, (221), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-09 04:48:32,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 241 transitions. [2024-11-09 04:48:32,029 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 241 transitions. Word has length 95 [2024-11-09 04:48:32,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:48:32,030 INFO L471 AbstractCegarLoop]: Abstraction has 231 states and 241 transitions. [2024-11-09 04:48:32,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 15.181818181818182) internal successors, (167), 12 states have internal predecessors, (167), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 04:48:32,030 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 241 transitions. [2024-11-09 04:48:32,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-09 04:48:32,033 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:48:32,033 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:48:32,054 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-09 04:48:32,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:48:32,234 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 04:48:32,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:48:32,235 INFO L85 PathProgramCache]: Analyzing trace with hash 2104602282, now seen corresponding path program 1 times [2024-11-09 04:48:32,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:48:32,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140088969] [2024-11-09 04:48:32,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:48:32,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:48:32,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:48:32,731 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 220 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 04:48:32,732 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:48:32,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140088969] [2024-11-09 04:48:32,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140088969] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:48:32,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [719891699] [2024-11-09 04:48:32,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:48:32,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:48:32,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:48:32,735 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:48:32,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-09 04:48:32,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:48:32,815 INFO L255 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 04:48:32,818 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:48:33,846 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 220 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 04:48:33,846 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:48:33,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [719891699] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:48:33,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 04:48:33,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [13] total 25 [2024-11-09 04:48:33,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710442119] [2024-11-09 04:48:33,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:48:33,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 04:48:33,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:48:33,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 04:48:33,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=473, Unknown=0, NotChecked=0, Total=650 [2024-11-09 04:48:33,849 INFO L87 Difference]: Start difference. First operand 231 states and 241 transitions. Second operand has 14 states, 13 states have (on average 8.23076923076923) internal successors, (107), 14 states have internal predecessors, (107), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 04:48:34,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:48:34,276 INFO L93 Difference]: Finished difference Result 231 states and 241 transitions. [2024-11-09 04:48:34,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 04:48:34,277 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 8.23076923076923) internal successors, (107), 14 states have internal predecessors, (107), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 121 [2024-11-09 04:48:34,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:48:34,279 INFO L225 Difference]: With dead ends: 231 [2024-11-09 04:48:34,279 INFO L226 Difference]: Without dead ends: 221 [2024-11-09 04:48:34,280 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=263, Invalid=607, Unknown=0, NotChecked=0, Total=870 [2024-11-09 04:48:34,280 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 24 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 04:48:34,281 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 168 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 04:48:34,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2024-11-09 04:48:34,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 221. [2024-11-09 04:48:34,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 204 states have (on average 1.0098039215686274) internal successors, (206), 205 states have internal predecessors, (206), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-09 04:48:34,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 226 transitions. [2024-11-09 04:48:34,307 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 226 transitions. Word has length 121 [2024-11-09 04:48:34,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:48:34,308 INFO L471 AbstractCegarLoop]: Abstraction has 221 states and 226 transitions. [2024-11-09 04:48:34,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 8.23076923076923) internal successors, (107), 14 states have internal predecessors, (107), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 04:48:34,308 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 226 transitions. [2024-11-09 04:48:34,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-11-09 04:48:34,312 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:48:34,312 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1] [2024-11-09 04:48:34,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-09 04:48:34,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:48:34,513 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 04:48:34,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:48:34,513 INFO L85 PathProgramCache]: Analyzing trace with hash -815942452, now seen corresponding path program 3 times [2024-11-09 04:48:34,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:48:34,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384900291] [2024-11-09 04:48:34,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:48:34,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:48:34,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:48:35,484 INFO L134 CoverageAnalysis]: Checked inductivity of 1030 backedges. 896 proven. 44 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-09 04:48:35,484 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:48:35,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384900291] [2024-11-09 04:48:35,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384900291] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:48:35,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1721644660] [2024-11-09 04:48:35,485 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 04:48:35,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:48:35,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:48:35,486 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:48:35,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-09 04:48:35,594 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 04:48:35,594 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 04:48:35,595 INFO L255 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 04:48:35,598 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:48:35,821 INFO L134 CoverageAnalysis]: Checked inductivity of 1030 backedges. 805 proven. 5 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-09 04:48:35,821 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:48:36,181 INFO L134 CoverageAnalysis]: Checked inductivity of 1030 backedges. 735 proven. 5 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-09 04:48:36,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1721644660] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:48:36,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [367133218] [2024-11-09 04:48:36,184 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2024-11-09 04:48:36,184 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 04:48:36,184 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 04:48:36,184 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 04:48:36,185 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 04:48:37,132 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 34 for LOIs [2024-11-09 04:48:37,140 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 04:48:45,287 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '9731#(and (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x~0#1| 9223372036854775807) (<= 1 |ULTIMATE.start_main_~c~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~y~0#1_118| Int)) (and (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~y~0#1_118| |v_ULTIMATE.start_main_~y~0#1_118|)) (= (* 2 |ULTIMATE.start_main_~x~0#1|) (+ |v_ULTIMATE.start_main_~y~0#1_118| (* |v_ULTIMATE.start_main_~y~0#1_118| |v_ULTIMATE.start_main_~y~0#1_118|))) (<= 1 |v_ULTIMATE.start_main_~y~0#1_118|))) (<= 6 ~counter~0) (<= |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~k~0#1|) (<= ~counter~0 2147483647))' at error location [2024-11-09 04:48:45,287 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 04:48:45,287 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:48:45,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 13, 14] total 25 [2024-11-09 04:48:45,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944214537] [2024-11-09 04:48:45,288 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 04:48:45,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-09 04:48:45,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:48:45,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-09 04:48:45,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=269, Invalid=1453, Unknown=0, NotChecked=0, Total=1722 [2024-11-09 04:48:45,291 INFO L87 Difference]: Start difference. First operand 221 states and 226 transitions. Second operand has 25 states, 25 states have (on average 8.48) internal successors, (212), 25 states have internal predecessors, (212), 10 states have call successors, (16), 7 states have call predecessors, (16), 7 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2024-11-09 04:48:45,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:48:45,742 INFO L93 Difference]: Finished difference Result 223 states and 227 transitions. [2024-11-09 04:48:45,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-09 04:48:45,742 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 8.48) internal successors, (212), 25 states have internal predecessors, (212), 10 states have call successors, (16), 7 states have call predecessors, (16), 7 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) Word has length 227 [2024-11-09 04:48:45,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:48:45,743 INFO L225 Difference]: With dead ends: 223 [2024-11-09 04:48:45,743 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 04:48:45,745 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 713 GetRequests, 599 SyntacticMatches, 63 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2723 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=425, Invalid=2331, Unknown=0, NotChecked=0, Total=2756 [2024-11-09 04:48:45,749 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 16 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:48:45,750 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 685 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 04:48:45,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 04:48:45,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 04:48:45,752 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 04:48:45,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 04:48:45,752 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 227 [2024-11-09 04:48:45,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:48:45,752 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 04:48:45,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 8.48) internal successors, (212), 25 states have internal predecessors, (212), 10 states have call successors, (16), 7 states have call predecessors, (16), 7 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2024-11-09 04:48:45,753 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 04:48:45,753 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 04:48:45,756 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 24 remaining) [2024-11-09 04:48:45,759 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 24 remaining) [2024-11-09 04:48:45,759 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 24 remaining) [2024-11-09 04:48:45,760 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 24 remaining) [2024-11-09 04:48:45,760 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 24 remaining) [2024-11-09 04:48:45,760 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 24 remaining) [2024-11-09 04:48:45,760 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 24 remaining) [2024-11-09 04:48:45,760 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 24 remaining) [2024-11-09 04:48:45,761 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 24 remaining) [2024-11-09 04:48:45,761 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 24 remaining) [2024-11-09 04:48:45,761 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 24 remaining) [2024-11-09 04:48:45,761 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 24 remaining) [2024-11-09 04:48:45,761 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 24 remaining) [2024-11-09 04:48:45,762 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 24 remaining) [2024-11-09 04:48:45,762 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 24 remaining) [2024-11-09 04:48:45,762 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 24 remaining) [2024-11-09 04:48:45,762 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 24 remaining) [2024-11-09 04:48:45,762 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 24 remaining) [2024-11-09 04:48:45,762 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 24 remaining) [2024-11-09 04:48:45,763 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 24 remaining) [2024-11-09 04:48:45,763 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 24 remaining) [2024-11-09 04:48:45,763 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 24 remaining) [2024-11-09 04:48:45,764 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 24 remaining) [2024-11-09 04:48:45,764 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 24 remaining) [2024-11-09 04:48:45,789 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-09 04:48:45,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-09 04:48:45,968 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:48:45,970 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 04:48:47,320 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 04:48:47,384 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 04:48:47,385 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 04:48:47,386 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 04:48:47,386 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 04:48:47,386 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 04:48:47,387 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 04:48:47,396 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 04:48:47 BoogieIcfgContainer [2024-11-09 04:48:47,396 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 04:48:47,397 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 04:48:47,397 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 04:48:47,397 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 04:48:47,397 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:47:16" (3/4) ... [2024-11-09 04:48:47,400 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 04:48:47,405 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-09 04:48:47,411 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-09 04:48:47,413 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-09 04:48:47,413 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 04:48:47,414 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 04:48:47,528 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 04:48:47,532 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/witness.yml [2024-11-09 04:48:47,532 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 04:48:47,533 INFO L158 Benchmark]: Toolchain (without parser) took 92230.54ms. Allocated memory was 144.7MB in the beginning and 356.5MB in the end (delta: 211.8MB). Free memory was 105.7MB in the beginning and 226.4MB in the end (delta: -120.7MB). Peak memory consumption was 91.6MB. Max. memory is 16.1GB. [2024-11-09 04:48:47,534 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 144.7MB. Free memory is still 86.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 04:48:47,536 INFO L158 Benchmark]: CACSL2BoogieTranslator took 446.39ms. Allocated memory is still 144.7MB. Free memory was 105.7MB in the beginning and 93.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 04:48:47,536 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.64ms. Allocated memory is still 144.7MB. Free memory was 93.1MB in the beginning and 91.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 04:48:47,537 INFO L158 Benchmark]: Boogie Preprocessor took 25.14ms. Allocated memory is still 144.7MB. Free memory was 91.7MB in the beginning and 90.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 04:48:47,537 INFO L158 Benchmark]: RCFGBuilder took 545.69ms. Allocated memory is still 144.7MB. Free memory was 90.5MB in the beginning and 75.4MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 04:48:47,537 INFO L158 Benchmark]: TraceAbstraction took 91019.26ms. Allocated memory was 144.7MB in the beginning and 356.5MB in the end (delta: 211.8MB). Free memory was 75.0MB in the beginning and 231.6MB in the end (delta: -156.6MB). Peak memory consumption was 58.0MB. Max. memory is 16.1GB. [2024-11-09 04:48:47,538 INFO L158 Benchmark]: Witness Printer took 136.06ms. Allocated memory is still 356.5MB. Free memory was 231.6MB in the beginning and 226.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 04:48:47,542 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 144.7MB. Free memory is still 86.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 446.39ms. Allocated memory is still 144.7MB. Free memory was 105.7MB in the beginning and 93.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.64ms. Allocated memory is still 144.7MB. Free memory was 93.1MB in the beginning and 91.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.14ms. Allocated memory is still 144.7MB. Free memory was 91.7MB in the beginning and 90.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 545.69ms. Allocated memory is still 144.7MB. Free memory was 90.5MB in the beginning and 75.4MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 91019.26ms. Allocated memory was 144.7MB in the beginning and 356.5MB in the end (delta: 211.8MB). Free memory was 75.0MB in the beginning and 231.6MB in the end (delta: -156.6MB). Peak memory consumption was 58.0MB. Max. memory is 16.1GB. * Witness Printer took 136.06ms. Allocated memory is still 356.5MB. Free memory was 231.6MB in the beginning and 226.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * 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: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: 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, 58 locations, 24 error locations. Started 1 CEGAR loops. OverallTime: 89.5s, OverallIterations: 22, TraceHistogramMax: 11, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 6.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 841 SdHoareTripleChecker+Valid, 3.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 829 mSDsluCounter, 3092 SdHoareTripleChecker+Invalid, 3.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2243 mSDsCounter, 100 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2616 IncrementalHoareTripleChecker+Invalid, 2716 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 100 mSolverCounterUnsat, 849 mSDtfsCounter, 2616 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2079 GetRequests, 1610 SyntacticMatches, 153 SemanticMatches, 316 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 5722 ImplicationChecksByTransitivity, 48.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=231occurred in iteration=20, InterpolantAutomatonStates: 169, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 22 MinimizatonAttempts, 162 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 41.1s InterpolantComputationTime, 1737 NumberOfCodeBlocks, 1693 NumberOfCodeBlocksAsserted, 44 NumberOfCheckSat, 2178 ConstructedInterpolants, 2 QuantifiedInterpolants, 8528 SizeOfPredicates, 30 NumberOfNonLiveVariables, 1498 ConjunctsInSsa, 89 ConjunctsInUnsatCore, 39 InterpolantComputations, 15 PerfectInterpolantSequences, 3549/4691 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: OVERALL_TIME: 1.3s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 28, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 96, TOOLS_POST_TIME: 0.8s, TOOLS_POST_CALL_APPLICATIONS: 11, TOOLS_POST_CALL_TIME: 0.2s, TOOLS_POST_RETURN_APPLICATIONS: 10, TOOLS_POST_RETURN_TIME: 0.1s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 117, TOOLS_QUANTIFIERELIM_TIME: 1.1s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 142, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 10, DOMAIN_JOIN_TIME: 0.1s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 3, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 28, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME: 0.8s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.8s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 3, CALL_SUMMARIZER_APPLICATIONS: 10, CALL_SUMMARIZER_CACHE_MISSES: 1, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 895, DAG_COMPRESSION_RETAINED_NODES: 98, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 24 specifications checked. All of them hold - ProcedureContractResult [Line: 9]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Ensures: (counter == \old(counter)) RESULT: Ultimate proved your program to be correct! [2024-11-09 04:48:47,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94688a-f0af-4ee5-a4a0-4cbef1126a32/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE