./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound100.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound100.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash efc4103a673d30f5c3fd98741c7d56d84f1ec5a0e9e3b77a4d9f9d9493ec5192 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:49:40,832 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:49:40,921 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-14 03:49:40,927 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:49:40,927 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:49:40,953 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:49:40,953 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:49:40,954 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:49:40,954 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:49:40,954 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:49:40,954 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:49:40,955 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:49:40,955 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:49:40,955 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:49:40,955 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:49:40,955 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:49:40,955 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:49:40,955 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:49:40,956 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:49:40,956 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:49:40,956 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:49:40,956 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:49:40,957 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:49:40,957 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:49:40,957 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:49:40,957 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:49:40,957 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:49:40,957 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:49:40,957 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:49:40,958 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:49:40,958 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:49:40,958 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:49:40,958 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 03:49:40,958 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 03:49:40,958 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:49:40,958 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:49:40,958 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:49:40,958 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:49:40,959 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:49:40,959 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:49:40,959 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:49:40,959 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:49:40,959 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:49:40,960 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:49:40,960 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:49:40,960 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:49:40,960 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:49:40,960 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:49:40,961 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:49:40,961 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> efc4103a673d30f5c3fd98741c7d56d84f1ec5a0e9e3b77a4d9f9d9493ec5192 [2024-11-14 03:49:41,323 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:49:41,342 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:49:41,345 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:49:41,346 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:49:41,347 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:49:41,348 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound100.c Unable to find full path for "g++" [2024-11-14 03:49:43,549 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:49:43,840 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:49:43,843 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound100.c [2024-11-14 03:49:43,854 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/data/2d849864f/1d5fe03fe2e24bbab4b1ab166b0f0b69/FLAGd22e9d251 [2024-11-14 03:49:43,878 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/data/2d849864f/1d5fe03fe2e24bbab4b1ab166b0f0b69 [2024-11-14 03:49:43,883 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:49:43,886 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:49:43,888 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:49:43,889 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:49:43,894 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:49:43,895 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:49:43" (1/1) ... [2024-11-14 03:49:43,896 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b68aae7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:49:43, skipping insertion in model container [2024-11-14 03:49:43,897 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:49:43" (1/1) ... [2024-11-14 03:49:43,919 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:49:44,170 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:49:44,189 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:49:44,225 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:49:44,245 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:49:44,246 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:49:44 WrapperNode [2024-11-14 03:49:44,247 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:49:44,249 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:49:44,249 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:49:44,250 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:49:44,263 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:49:44" (1/1) ... [2024-11-14 03:49:44,271 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:49:44" (1/1) ... [2024-11-14 03:49:44,302 INFO L138 Inliner]: procedures = 14, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 98 [2024-11-14 03:49:44,303 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:49:44,303 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:49:44,304 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:49:44,304 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:49:44,312 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:49:44" (1/1) ... [2024-11-14 03:49:44,312 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:49:44" (1/1) ... [2024-11-14 03:49:44,314 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:49:44" (1/1) ... [2024-11-14 03:49:44,315 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:49:44" (1/1) ... [2024-11-14 03:49:44,319 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:49:44" (1/1) ... [2024-11-14 03:49:44,323 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:49:44" (1/1) ... [2024-11-14 03:49:44,324 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:49:44" (1/1) ... [2024-11-14 03:49:44,325 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:49:44" (1/1) ... [2024-11-14 03:49:44,327 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:49:44,328 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:49:44,328 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:49:44,328 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:49:44,329 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:49:44" (1/1) ... [2024-11-14 03:49:44,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:49:44,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:49:44,374 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:49:44,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:49:44,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:49:44,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 03:49:44,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:49:44,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:49:44,406 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-14 03:49:44,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-14 03:49:44,478 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:49:44,480 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:49:45,066 INFO L? ?]: Removed 55 outVars from TransFormulas that were not future-live. [2024-11-14 03:49:45,066 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:49:45,139 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:49:45,140 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-14 03:49:45,140 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:49:45 BoogieIcfgContainer [2024-11-14 03:49:45,140 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:49:45,146 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:49:45,146 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:49:45,153 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:49:45,153 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:49:43" (1/3) ... [2024-11-14 03:49:45,154 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@670adab1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:49:45, skipping insertion in model container [2024-11-14 03:49:45,154 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:49:44" (2/3) ... [2024-11-14 03:49:45,154 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@670adab1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:49:45, skipping insertion in model container [2024-11-14 03:49:45,154 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:49:45" (3/3) ... [2024-11-14 03:49:45,157 INFO L112 eAbstractionObserver]: Analyzing ICFG hard-ll_unwindbound100.c [2024-11-14 03:49:45,176 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:49:45,178 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hard-ll_unwindbound100.c that has 2 procedures, 75 locations, 1 initial locations, 2 loop locations, and 28 error locations. [2024-11-14 03:49:45,252 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:49:45,267 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;@54b2bb4a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:49:45,267 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-11-14 03:49:45,272 INFO L276 IsEmpty]: Start isEmpty. Operand has 75 states, 38 states have (on average 1.9210526315789473) internal successors, (73), 66 states have internal predecessors, (73), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 03:49:45,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-14 03:49:45,279 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:49:45,279 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-14 03:49:45,280 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 03:49:45,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:49:45,285 INFO L85 PathProgramCache]: Analyzing trace with hash 176280, now seen corresponding path program 1 times [2024-11-14 03:49:45,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:49:45,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118497267] [2024-11-14 03:49:45,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:49:45,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:49:45,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:49:45,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:49:45,569 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:49:45,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118497267] [2024-11-14 03:49:45,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118497267] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:49:45,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:49:45,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:49:45,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674202127] [2024-11-14 03:49:45,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:49:45,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:49:45,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:49:45,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:49:45,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:49:45,609 INFO L87 Difference]: Start difference. First operand has 75 states, 38 states have (on average 1.9210526315789473) internal successors, (73), 66 states have internal predecessors, (73), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) 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) [2024-11-14 03:49:45,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:49:45,736 INFO L93 Difference]: Finished difference Result 133 states and 153 transitions. [2024-11-14 03:49:45,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:49:45,741 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 [2024-11-14 03:49:45,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:49:45,749 INFO L225 Difference]: With dead ends: 133 [2024-11-14 03:49:45,750 INFO L226 Difference]: Without dead ends: 75 [2024-11-14 03:49:45,754 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:49:45,761 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 4 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:49:45,762 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 230 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:49:45,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-11-14 03:49:45,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2024-11-14 03:49:45,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 41 states have (on average 1.7804878048780488) internal successors, (73), 68 states have internal predecessors, (73), 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) [2024-11-14 03:49:45,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 83 transitions. [2024-11-14 03:49:45,817 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 83 transitions. Word has length 3 [2024-11-14 03:49:45,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:49:45,818 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 83 transitions. [2024-11-14 03:49:45,820 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) [2024-11-14 03:49:45,820 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 83 transitions. [2024-11-14 03:49:45,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-14 03:49:45,822 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:49:45,822 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:49:45,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 03:49:45,823 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 03:49:45,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:49:45,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1635513769, now seen corresponding path program 1 times [2024-11-14 03:49:45,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:49:45,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502613545] [2024-11-14 03:49:45,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:49:45,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:49:45,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:49:45,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [863503922] [2024-11-14 03:49:45,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:49:45,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:49:45,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:49:45,861 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:49:45,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 03:49:45,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:49:45,932 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:49:45,937 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:49:46,067 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 03:49:46,067 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:49:46,067 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:49:46,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502613545] [2024-11-14 03:49:46,068 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:49:46,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [863503922] [2024-11-14 03:49:46,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [863503922] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:49:46,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:49:46,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:49:46,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8893694] [2024-11-14 03:49:46,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:49:46,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:49:46,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:49:46,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:49:46,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:49:46,073 INFO L87 Difference]: Start difference. First operand 75 states and 83 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 03:49:46,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:49:46,226 INFO L93 Difference]: Finished difference Result 162 states and 186 transitions. [2024-11-14 03:49:46,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:49:46,227 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 12 [2024-11-14 03:49:46,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:49:46,229 INFO L225 Difference]: With dead ends: 162 [2024-11-14 03:49:46,229 INFO L226 Difference]: Without dead ends: 110 [2024-11-14 03:49:46,230 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:49:46,231 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 29 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:49:46,231 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 114 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:49:46,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-11-14 03:49:46,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 98. [2024-11-14 03:49:46,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 59 states have (on average 1.7118644067796611) internal successors, (101), 86 states have internal predecessors, (101), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-14 03:49:46,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 121 transitions. [2024-11-14 03:49:46,275 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 121 transitions. Word has length 12 [2024-11-14 03:49:46,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:49:46,277 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 121 transitions. [2024-11-14 03:49:46,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 03:49:46,277 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 121 transitions. [2024-11-14 03:49:46,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-14 03:49:46,277 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:49:46,278 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:49:46,303 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 03:49:46,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:49:46,478 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 03:49:46,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:49:46,479 INFO L85 PathProgramCache]: Analyzing trace with hash 273312529, now seen corresponding path program 1 times [2024-11-14 03:49:46,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:49:46,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950612516] [2024-11-14 03:49:46,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:49:46,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:49:46,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:49:46,734 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 03:49:46,734 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:49:46,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950612516] [2024-11-14 03:49:46,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950612516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:49:46,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:49:46,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:49:46,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411665282] [2024-11-14 03:49:46,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:49:46,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:49:46,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:49:46,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:49:46,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:49:46,740 INFO L87 Difference]: Start difference. First operand 98 states and 121 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 03:49:46,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:49:46,842 INFO L93 Difference]: Finished difference Result 126 states and 157 transitions. [2024-11-14 03:49:46,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:49:46,843 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 18 [2024-11-14 03:49:46,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:49:46,845 INFO L225 Difference]: With dead ends: 126 [2024-11-14 03:49:46,845 INFO L226 Difference]: Without dead ends: 124 [2024-11-14 03:49:46,845 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:49:46,846 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 36 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:49:46,847 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 97 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:49:46,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-11-14 03:49:46,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 111. [2024-11-14 03:49:46,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 71 states have (on average 1.704225352112676) internal successors, (121), 97 states have internal predecessors, (121), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-14 03:49:46,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 145 transitions. [2024-11-14 03:49:46,866 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 145 transitions. Word has length 18 [2024-11-14 03:49:46,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:49:46,866 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 145 transitions. [2024-11-14 03:49:46,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 03:49:46,866 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 145 transitions. [2024-11-14 03:49:46,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-14 03:49:46,867 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:49:46,867 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:49:46,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 03:49:46,868 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 03:49:46,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:49:46,868 INFO L85 PathProgramCache]: Analyzing trace with hash -117247663, now seen corresponding path program 1 times [2024-11-14 03:49:46,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:49:46,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438887130] [2024-11-14 03:49:46,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:49:46,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:49:46,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:49:47,076 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 03:49:47,076 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:49:47,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438887130] [2024-11-14 03:49:47,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438887130] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:49:47,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:49:47,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 03:49:47,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804830661] [2024-11-14 03:49:47,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:49:47,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 03:49:47,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:49:47,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 03:49:47,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:49:47,078 INFO L87 Difference]: Start difference. First operand 111 states and 145 transitions. Second operand has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 7 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 03:49:47,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:49:47,248 INFO L93 Difference]: Finished difference Result 133 states and 158 transitions. [2024-11-14 03:49:47,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 03:49:47,249 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 7 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 19 [2024-11-14 03:49:47,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:49:47,250 INFO L225 Difference]: With dead ends: 133 [2024-11-14 03:49:47,250 INFO L226 Difference]: Without dead ends: 132 [2024-11-14 03:49:47,251 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-14 03:49:47,252 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 45 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:49:47,252 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 353 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:49:47,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2024-11-14 03:49:47,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 113. [2024-11-14 03:49:47,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 72 states have (on average 1.6805555555555556) internal successors, (121), 98 states have internal predecessors, (121), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-14 03:49:47,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 145 transitions. [2024-11-14 03:49:47,268 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 145 transitions. Word has length 19 [2024-11-14 03:49:47,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:49:47,269 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 145 transitions. [2024-11-14 03:49:47,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 7 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 03:49:47,269 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 145 transitions. [2024-11-14 03:49:47,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-14 03:49:47,269 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:49:47,270 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:49:47,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 03:49:47,270 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 03:49:47,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:49:47,271 INFO L85 PathProgramCache]: Analyzing trace with hash -117246125, now seen corresponding path program 1 times [2024-11-14 03:49:47,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:49:47,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42411900] [2024-11-14 03:49:47,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:49:47,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:49:47,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:49:47,336 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 03:49:47,336 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:49:47,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42411900] [2024-11-14 03:49:47,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42411900] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:49:47,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:49:47,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:49:47,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233110673] [2024-11-14 03:49:47,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:49:47,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:49:47,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:49:47,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:49:47,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:49:47,338 INFO L87 Difference]: Start difference. First operand 113 states and 145 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 03:49:47,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:49:47,412 INFO L93 Difference]: Finished difference Result 123 states and 152 transitions. [2024-11-14 03:49:47,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:49:47,413 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 19 [2024-11-14 03:49:47,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:49:47,414 INFO L225 Difference]: With dead ends: 123 [2024-11-14 03:49:47,414 INFO L226 Difference]: Without dead ends: 122 [2024-11-14 03:49:47,414 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:49:47,415 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 21 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:49:47,416 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 119 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:49:47,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-14 03:49:47,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 113. [2024-11-14 03:49:47,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 72 states have (on average 1.6666666666666667) internal successors, (120), 98 states have internal predecessors, (120), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-14 03:49:47,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 144 transitions. [2024-11-14 03:49:47,431 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 144 transitions. Word has length 19 [2024-11-14 03:49:47,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:49:47,432 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 144 transitions. [2024-11-14 03:49:47,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 03:49:47,432 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 144 transitions. [2024-11-14 03:49:47,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-14 03:49:47,433 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:49:47,433 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:49:47,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 03:49:47,433 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 03:49:47,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:49:47,434 INFO L85 PathProgramCache]: Analyzing trace with hash 660289825, now seen corresponding path program 1 times [2024-11-14 03:49:47,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:49:47,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090801170] [2024-11-14 03:49:47,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:49:47,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:49:47,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:49:47,648 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 03:49:47,648 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:49:47,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090801170] [2024-11-14 03:49:47,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090801170] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:49:47,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:49:47,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 03:49:47,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314153822] [2024-11-14 03:49:47,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:49:47,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 03:49:47,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:49:47,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 03:49:47,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:49:47,651 INFO L87 Difference]: Start difference. First operand 113 states and 144 transitions. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 03:49:47,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:49:47,798 INFO L93 Difference]: Finished difference Result 129 states and 157 transitions. [2024-11-14 03:49:47,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 03:49:47,799 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 20 [2024-11-14 03:49:47,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:49:47,801 INFO L225 Difference]: With dead ends: 129 [2024-11-14 03:49:47,801 INFO L226 Difference]: Without dead ends: 120 [2024-11-14 03:49:47,802 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-14 03:49:47,803 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 19 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:49:47,806 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 332 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:49:47,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-14 03:49:47,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 115. [2024-11-14 03:49:47,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 73 states have (on average 1.63013698630137) internal successors, (119), 99 states have internal predecessors, (119), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-14 03:49:47,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 143 transitions. [2024-11-14 03:49:47,829 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 143 transitions. Word has length 20 [2024-11-14 03:49:47,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:49:47,829 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 143 transitions. [2024-11-14 03:49:47,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 03:49:47,830 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 143 transitions. [2024-11-14 03:49:47,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-14 03:49:47,831 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:49:47,831 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:49:47,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-14 03:49:47,831 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 03:49:47,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:49:47,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1116635197, now seen corresponding path program 1 times [2024-11-14 03:49:47,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:49:47,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074995015] [2024-11-14 03:49:47,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:49:47,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:49:47,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:49:47,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1134776033] [2024-11-14 03:49:47,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:49:47,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:49:47,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:49:47,853 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:49:47,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 03:49:47,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:49:47,925 INFO L255 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:49:47,927 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:49:47,979 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 03:49:47,979 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:49:47,979 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:49:47,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074995015] [2024-11-14 03:49:47,980 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:49:47,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1134776033] [2024-11-14 03:49:47,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1134776033] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:49:47,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:49:47,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:49:47,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586437635] [2024-11-14 03:49:47,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:49:47,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:49:47,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:49:47,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:49:47,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:49:47,982 INFO L87 Difference]: Start difference. First operand 115 states and 143 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 03:49:48,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:49:48,140 INFO L93 Difference]: Finished difference Result 155 states and 193 transitions. [2024-11-14 03:49:48,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:49:48,141 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 22 [2024-11-14 03:49:48,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:49:48,142 INFO L225 Difference]: With dead ends: 155 [2024-11-14 03:49:48,142 INFO L226 Difference]: Without dead ends: 151 [2024-11-14 03:49:48,143 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:49:48,143 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 44 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:49:48,144 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 95 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:49:48,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-11-14 03:49:48,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 135. [2024-11-14 03:49:48,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 91 states have (on average 1.6043956043956045) internal successors, (146), 117 states have internal predecessors, (146), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-14 03:49:48,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 174 transitions. [2024-11-14 03:49:48,159 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 174 transitions. Word has length 22 [2024-11-14 03:49:48,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:49:48,159 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 174 transitions. [2024-11-14 03:49:48,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 03:49:48,160 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 174 transitions. [2024-11-14 03:49:48,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-14 03:49:48,160 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:49:48,160 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:49:48,182 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-14 03:49:48,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:49:48,365 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 03:49:48,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:49:48,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1164049271, now seen corresponding path program 1 times [2024-11-14 03:49:48,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:49:48,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238624334] [2024-11-14 03:49:48,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:49:48,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:49:48,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:49:48,556 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 03:49:48,556 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:49:48,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238624334] [2024-11-14 03:49:48,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238624334] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:49:48,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1431756939] [2024-11-14 03:49:48,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:49:48,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:49:48,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:49:48,559 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:49:48,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 03:49:48,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:49:48,632 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:49:48,634 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:49:48,755 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 03:49:48,755 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:49:48,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1431756939] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:49:48,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:49:48,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-14 03:49:48,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872834171] [2024-11-14 03:49:48,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:49:48,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:49:48,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:49:48,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:49:48,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-14 03:49:48,757 INFO L87 Difference]: Start difference. First operand 135 states and 174 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 03:49:48,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:49:48,826 INFO L93 Difference]: Finished difference Result 139 states and 175 transitions. [2024-11-14 03:49:48,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:49:48,832 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 23 [2024-11-14 03:49:48,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:49:48,833 INFO L225 Difference]: With dead ends: 139 [2024-11-14 03:49:48,833 INFO L226 Difference]: Without dead ends: 138 [2024-11-14 03:49:48,834 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-14 03:49:48,835 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 16 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:49:48,835 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 252 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:49:48,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2024-11-14 03:49:48,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 136. [2024-11-14 03:49:48,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 92 states have (on average 1.5869565217391304) internal successors, (146), 117 states have internal predecessors, (146), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-14 03:49:48,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 174 transitions. [2024-11-14 03:49:48,863 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 174 transitions. Word has length 23 [2024-11-14 03:49:48,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:49:48,863 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 174 transitions. [2024-11-14 03:49:48,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 03:49:48,864 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 174 transitions. [2024-11-14 03:49:48,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-14 03:49:48,864 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:49:48,864 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:49:48,888 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-14 03:49:49,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:49:49,069 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 03:49:49,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:49:49,070 INFO L85 PathProgramCache]: Analyzing trace with hash 655402597, now seen corresponding path program 1 times [2024-11-14 03:49:49,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:49:49,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501897244] [2024-11-14 03:49:49,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:49:49,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:49:49,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:49:49,155 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 03:49:49,156 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:49:49,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501897244] [2024-11-14 03:49:49,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501897244] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:49:49,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:49:49,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:49:49,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323553567] [2024-11-14 03:49:49,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:49:49,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:49:49,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:49:49,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:49:49,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:49:49,158 INFO L87 Difference]: Start difference. First operand 136 states and 174 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 03:49:50,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:49:50,328 INFO L93 Difference]: Finished difference Result 163 states and 201 transitions. [2024-11-14 03:49:50,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:49:50,329 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2024-11-14 03:49:50,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:49:50,330 INFO L225 Difference]: With dead ends: 163 [2024-11-14 03:49:50,330 INFO L226 Difference]: Without dead ends: 162 [2024-11-14 03:49:50,331 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:49:50,331 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 110 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:49:50,332 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 102 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-14 03:49:50,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2024-11-14 03:49:50,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 143. [2024-11-14 03:49:50,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 99 states have (on average 1.5656565656565657) internal successors, (155), 124 states have internal predecessors, (155), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-14 03:49:50,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 183 transitions. [2024-11-14 03:49:50,359 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 183 transitions. Word has length 24 [2024-11-14 03:49:50,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:49:50,359 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 183 transitions. [2024-11-14 03:49:50,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 03:49:50,360 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 183 transitions. [2024-11-14 03:49:50,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-14 03:49:50,361 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:49:50,361 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:49:50,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-14 03:49:50,361 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 03:49:50,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:49:50,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1725789080, now seen corresponding path program 1 times [2024-11-14 03:49:50,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:49:50,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467922539] [2024-11-14 03:49:50,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:49:50,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:49:50,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:49:50,466 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 03:49:50,467 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:49:50,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467922539] [2024-11-14 03:49:50,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467922539] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:49:50,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [696819302] [2024-11-14 03:49:50,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:49:50,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:49:50,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:49:50,470 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:49:50,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 03:49:50,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:49:50,526 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:49:50,528 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:49:50,607 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 03:49:50,607 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:49:50,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [696819302] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:49:50,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:49:50,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-14 03:49:50,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195436852] [2024-11-14 03:49:50,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:49:50,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:49:50,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:49:50,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:49:50,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-14 03:49:50,610 INFO L87 Difference]: Start difference. First operand 143 states and 183 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 03:49:50,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:49:50,730 INFO L93 Difference]: Finished difference Result 148 states and 188 transitions. [2024-11-14 03:49:50,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:49:50,731 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2024-11-14 03:49:50,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:49:50,732 INFO L225 Difference]: With dead ends: 148 [2024-11-14 03:49:50,733 INFO L226 Difference]: Without dead ends: 147 [2024-11-14 03:49:50,733 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-14 03:49:50,734 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 14 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:49:50,734 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 251 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:49:50,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-14 03:49:50,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 142. [2024-11-14 03:49:50,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 99 states have (on average 1.5555555555555556) internal successors, (154), 123 states have internal predecessors, (154), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-14 03:49:50,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 182 transitions. [2024-11-14 03:49:50,759 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 182 transitions. Word has length 24 [2024-11-14 03:49:50,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:49:50,759 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 182 transitions. [2024-11-14 03:49:50,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 03:49:50,760 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 182 transitions. [2024-11-14 03:49:50,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-14 03:49:50,761 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:49:50,761 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:49:50,784 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-14 03:49:50,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-14 03:49:50,962 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 03:49:50,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:49:50,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1157355878, now seen corresponding path program 1 times [2024-11-14 03:49:50,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:49:50,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699339235] [2024-11-14 03:49:50,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:49:50,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:49:50,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:49:50,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1377327667] [2024-11-14 03:49:50,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:49:50,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:49:50,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:49:50,982 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:49:50,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 03:49:51,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:49:51,042 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:49:51,044 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:49:51,198 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 03:49:51,199 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:49:51,199 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:49:51,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699339235] [2024-11-14 03:49:51,199 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:49:51,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1377327667] [2024-11-14 03:49:51,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1377327667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:49:51,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:49:51,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:49:51,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200641937] [2024-11-14 03:49:51,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:49:51,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:49:51,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:49:51,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:49:51,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:49:51,203 INFO L87 Difference]: Start difference. First operand 142 states and 182 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 03:49:51,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:49:51,380 INFO L93 Difference]: Finished difference Result 156 states and 189 transitions. [2024-11-14 03:49:51,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:49:51,381 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2024-11-14 03:49:51,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:49:51,382 INFO L225 Difference]: With dead ends: 156 [2024-11-14 03:49:51,383 INFO L226 Difference]: Without dead ends: 153 [2024-11-14 03:49:51,383 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:49:51,384 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 35 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:49:51,384 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 87 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:49:51,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-11-14 03:49:51,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 143. [2024-11-14 03:49:51,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 100 states have (on average 1.52) internal successors, (152), 124 states have internal predecessors, (152), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-14 03:49:51,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 180 transitions. [2024-11-14 03:49:51,409 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 180 transitions. Word has length 25 [2024-11-14 03:49:51,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:49:51,411 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 180 transitions. [2024-11-14 03:49:51,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 03:49:51,411 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 180 transitions. [2024-11-14 03:49:51,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-14 03:49:51,412 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:49:51,413 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:49:51,436 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-14 03:49:51,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-14 03:49:51,613 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 03:49:51,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:49:51,614 INFO L85 PathProgramCache]: Analyzing trace with hash -2070967588, now seen corresponding path program 1 times [2024-11-14 03:49:51,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:49:51,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822164376] [2024-11-14 03:49:51,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:49:51,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:49:51,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:49:51,727 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 03:49:51,727 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:49:51,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822164376] [2024-11-14 03:49:51,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822164376] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:49:51,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328040808] [2024-11-14 03:49:51,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:49:51,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:49:51,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:49:51,731 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:49:51,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-14 03:49:51,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:49:51,778 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 03:49:51,779 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:49:51,859 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 03:49:51,859 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:49:51,975 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 03:49:51,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1328040808] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:49:51,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [176826023] [2024-11-14 03:49:52,002 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2024-11-14 03:49:52,002 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:49:52,006 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:49:52,011 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:49:52,012 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:49:55,894 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 30 for LOIs [2024-11-14 03:49:55,905 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:50:05,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [176826023] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:50:05,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:50:05,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [7, 5, 6] total 30 [2024-11-14 03:50:05,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24205002] [2024-11-14 03:50:05,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:50:05,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-14 03:50:05,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:50:05,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-14 03:50:05,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=742, Unknown=1, NotChecked=0, Total=870 [2024-11-14 03:50:05,217 INFO L87 Difference]: Start difference. First operand 143 states and 180 transitions. Second operand has 19 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 14 states have internal predecessors, (16), 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) [2024-11-14 03:50:16,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:50:18,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 03:50:22,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 03:50:23,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 03:50:25,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 03:50:33,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:50:35,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 03:50:41,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:50:41,308 INFO L93 Difference]: Finished difference Result 193 states and 233 transitions. [2024-11-14 03:50:41,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-14 03:50:41,309 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 14 states have internal predecessors, (16), 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 27 [2024-11-14 03:50:41,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:50:41,310 INFO L225 Difference]: With dead ends: 193 [2024-11-14 03:50:41,311 INFO L226 Difference]: Without dead ends: 179 [2024-11-14 03:50:41,312 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 56 SyntacticMatches, 3 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 611 ImplicationChecksByTransitivity, 18.9s TimeCoverageRelationStatistics Valid=294, Invalid=1685, Unknown=1, NotChecked=0, Total=1980 [2024-11-14 03:50:41,313 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 104 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 758 mSolverCounterSat, 54 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 758 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:50:41,313 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 211 Invalid, 815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 758 Invalid, 3 Unknown, 0 Unchecked, 26.5s Time] [2024-11-14 03:50:41,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-14 03:50:41,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 157. [2024-11-14 03:50:41,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 114 states have (on average 1.4385964912280702) internal successors, (164), 135 states have internal predecessors, (164), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-14 03:50:41,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 196 transitions. [2024-11-14 03:50:41,340 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 196 transitions. Word has length 27 [2024-11-14 03:50:41,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:50:41,340 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 196 transitions. [2024-11-14 03:50:41,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 14 states have internal predecessors, (16), 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) [2024-11-14 03:50:41,340 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 196 transitions. [2024-11-14 03:50:41,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-14 03:50:41,341 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:50:41,341 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:50:41,363 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-14 03:50:41,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-14 03:50:41,542 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 03:50:41,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:50:41,543 INFO L85 PathProgramCache]: Analyzing trace with hash 224514294, now seen corresponding path program 1 times [2024-11-14 03:50:41,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:50:41,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073624021] [2024-11-14 03:50:41,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:50:41,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:50:41,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:50:41,646 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 03:50:41,646 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:50:41,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073624021] [2024-11-14 03:50:41,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073624021] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:50:41,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [532612870] [2024-11-14 03:50:41,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:50:41,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:50:41,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:50:41,650 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:50:41,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-14 03:50:41,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:50:41,710 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 03:50:41,712 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:50:41,793 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 03:50:41,794 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:50:41,878 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 03:50:41,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [532612870] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:50:41,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [335406137] [2024-11-14 03:50:41,880 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2024-11-14 03:50:41,880 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:50:41,881 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:50:41,881 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:50:41,881 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:50:43,701 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 30 for LOIs [2024-11-14 03:50:43,707 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:50:47,954 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4683#(and (<= 1 |#StackHeapBarrier|) (<= (div |ULTIMATE.start_main_~p~0#1| 2) 4611686018427387903) (= (mod |ULTIMATE.start_main_~p~0#1| 2) 0) (<= 0 (+ (div |ULTIMATE.start_main_~p~0#1| 2) 4611686018427387904)) (= |ULTIMATE.start_main_~d~0#1| (* (* (div |ULTIMATE.start_main_~p~0#1| 2) (mod |ULTIMATE.start_main_~B~0#1| 4294967296)) 2)) (<= (* (div |ULTIMATE.start_main_~p~0#1| 2) (mod |ULTIMATE.start_main_~B~0#1| 4294967296)) 4611686018427387903) (<= (* (div |ULTIMATE.start_main_~p~0#1| 2) (mod |ULTIMATE.start_main_~B~0#1| 4294967296)) |ULTIMATE.start_main_~r~0#1|) (= |ULTIMATE.start_main_~q~0#1| 0) (= ~counter~0 2147483647) (<= 0 (+ (* (div |ULTIMATE.start_main_~p~0#1| 2) (mod |ULTIMATE.start_main_~B~0#1| 4294967296)) 4611686018427387904)))' at error location [2024-11-14 03:50:47,954 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:50:47,954 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:50:47,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 6] total 13 [2024-11-14 03:50:47,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156783133] [2024-11-14 03:50:47,955 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:50:47,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-14 03:50:47,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:50:47,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-14 03:50:47,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=795, Unknown=1, NotChecked=0, Total=930 [2024-11-14 03:50:47,956 INFO L87 Difference]: Start difference. First operand 157 states and 196 transitions. Second operand has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 13 states have internal predecessors, (42), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-14 03:50:48,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:50:48,239 INFO L93 Difference]: Finished difference Result 300 states and 371 transitions. [2024-11-14 03:50:48,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-14 03:50:48,239 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 13 states have internal predecessors, (42), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 28 [2024-11-14 03:50:48,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:50:48,241 INFO L225 Difference]: With dead ends: 300 [2024-11-14 03:50:48,241 INFO L226 Difference]: Without dead ends: 207 [2024-11-14 03:50:48,242 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 57 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 512 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=203, Invalid=1128, Unknown=1, NotChecked=0, Total=1332 [2024-11-14 03:50:48,242 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 63 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:50:48,242 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 249 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:50:48,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2024-11-14 03:50:48,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 193. [2024-11-14 03:50:48,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 142 states have (on average 1.3943661971830985) internal successors, (198), 163 states have internal predecessors, (198), 22 states have call successors, (22), 7 states have call predecessors, (22), 7 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-14 03:50:48,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 242 transitions. [2024-11-14 03:50:48,275 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 242 transitions. Word has length 28 [2024-11-14 03:50:48,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:50:48,276 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 242 transitions. [2024-11-14 03:50:48,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 13 states have internal predecessors, (42), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-14 03:50:48,276 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 242 transitions. [2024-11-14 03:50:48,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-14 03:50:48,278 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:50:48,279 INFO L215 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:50:48,299 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-14 03:50:48,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-14 03:50:48,480 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 03:50:48,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:50:48,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1641910501, now seen corresponding path program 1 times [2024-11-14 03:50:48,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:50:48,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936209046] [2024-11-14 03:50:48,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:50:48,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:50:48,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:50:48,588 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 03:50:48,588 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:50:48,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936209046] [2024-11-14 03:50:48,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936209046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:50:48,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:50:48,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:50:48,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696638541] [2024-11-14 03:50:48,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:50:48,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:50:48,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:50:48,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:50:48,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:50:48,590 INFO L87 Difference]: Start difference. First operand 193 states and 242 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-14 03:50:49,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:50:49,348 INFO L93 Difference]: Finished difference Result 205 states and 247 transitions. [2024-11-14 03:50:49,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:50:49,349 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 37 [2024-11-14 03:50:49,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:50:49,350 INFO L225 Difference]: With dead ends: 205 [2024-11-14 03:50:49,350 INFO L226 Difference]: Without dead ends: 185 [2024-11-14 03:50:49,351 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:50:49,351 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 51 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 03:50:49,351 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 128 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 03:50:49,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-11-14 03:50:49,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 175. [2024-11-14 03:50:49,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 127 states have (on average 1.4015748031496063) internal successors, (178), 148 states have internal predecessors, (178), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-14 03:50:49,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 218 transitions. [2024-11-14 03:50:49,379 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 218 transitions. Word has length 37 [2024-11-14 03:50:49,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:50:49,380 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 218 transitions. [2024-11-14 03:50:49,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-14 03:50:49,380 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 218 transitions. [2024-11-14 03:50:49,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-14 03:50:49,381 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:50:49,381 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:50:49,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-14 03:50:49,381 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 03:50:49,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:50:49,382 INFO L85 PathProgramCache]: Analyzing trace with hash -24732112, now seen corresponding path program 1 times [2024-11-14 03:50:49,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:50:49,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924254719] [2024-11-14 03:50:49,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:50:49,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:50:49,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:50:49,534 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-14 03:50:49,534 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:50:49,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924254719] [2024-11-14 03:50:49,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924254719] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:50:49,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [669284653] [2024-11-14 03:50:49,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:50:49,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:50:49,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:50:49,536 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:50:49,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-14 03:50:49,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:50:49,593 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 03:50:49,594 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:50:49,741 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 03:50:49,741 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:50:49,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [669284653] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:50:49,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:50:49,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 13 [2024-11-14 03:50:49,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007299053] [2024-11-14 03:50:49,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:50:49,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 03:50:49,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:50:49,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 03:50:49,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-11-14 03:50:49,743 INFO L87 Difference]: Start difference. First operand 175 states and 218 transitions. Second operand has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 7 states have internal predecessors, (23), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 03:50:49,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:50:49,837 INFO L93 Difference]: Finished difference Result 175 states and 218 transitions. [2024-11-14 03:50:49,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:50:49,837 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 7 states have internal predecessors, (23), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 39 [2024-11-14 03:50:49,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:50:49,839 INFO L225 Difference]: With dead ends: 175 [2024-11-14 03:50:49,839 INFO L226 Difference]: Without dead ends: 174 [2024-11-14 03:50:49,839 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2024-11-14 03:50:49,840 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 110 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:50:49,840 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 236 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:50:49,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2024-11-14 03:50:49,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2024-11-14 03:50:49,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 127 states have (on average 1.3700787401574803) internal successors, (174), 147 states have internal predecessors, (174), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-14 03:50:49,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 214 transitions. [2024-11-14 03:50:49,869 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 214 transitions. Word has length 39 [2024-11-14 03:50:49,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:50:49,869 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 214 transitions. [2024-11-14 03:50:49,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 7 states have internal predecessors, (23), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 03:50:49,870 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 214 transitions. [2024-11-14 03:50:49,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-14 03:50:49,870 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:50:49,870 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:50:49,892 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-14 03:50:50,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-14 03:50:50,071 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 03:50:50,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:50:50,071 INFO L85 PathProgramCache]: Analyzing trace with hash -766695390, now seen corresponding path program 1 times [2024-11-14 03:50:50,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:50:50,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911991931] [2024-11-14 03:50:50,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:50:50,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:50:50,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:50:50,192 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-14 03:50:50,192 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:50:50,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911991931] [2024-11-14 03:50:50,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911991931] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:50:50,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1809644700] [2024-11-14 03:50:50,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:50:50,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:50:50,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:50:50,195 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:50:50,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-14 03:50:50,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:50:50,247 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 03:50:50,248 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:50:50,372 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 3 proven. 25 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 03:50:50,373 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:50:50,501 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-14 03:50:50,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1809644700] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:50:50,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1290880352] [2024-11-14 03:50:50,503 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2024-11-14 03:50:50,503 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:50:50,503 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:50:50,503 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:50:50,503 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:50:51,933 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 30 for LOIs [2024-11-14 03:50:51,937 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:51:05,656 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6610#(and (<= 1 |#StackHeapBarrier|) (<= (* |ULTIMATE.start_main_~p~0#1| (mod |ULTIMATE.start_main_~B~0#1| 4294967296)) 9223372036854775807) (= |ULTIMATE.start_main_~q~0#1| 0) (<= 2147483647 ~counter~0) (= (* |ULTIMATE.start_main_~p~0#1| (mod |ULTIMATE.start_main_~B~0#1| 4294967296)) |ULTIMATE.start_main_~d~0#1|) (<= (+ |ULTIMATE.start_main_~r~0#1| 1) |ULTIMATE.start_main_~d~0#1|))' at error location [2024-11-14 03:51:05,657 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:51:05,657 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:51:05,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 18 [2024-11-14 03:51:05,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779943190] [2024-11-14 03:51:05,657 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:51:05,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-14 03:51:05,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:51:05,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-14 03:51:05,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=1149, Unknown=1, NotChecked=0, Total=1332 [2024-11-14 03:51:05,659 INFO L87 Difference]: Start difference. First operand 174 states and 214 transitions. Second operand has 19 states, 18 states have (on average 3.6666666666666665) internal successors, (66), 19 states have internal predecessors, (66), 6 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-14 03:51:06,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:51:06,205 INFO L93 Difference]: Finished difference Result 283 states and 340 transitions. [2024-11-14 03:51:06,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-14 03:51:06,206 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.6666666666666665) internal successors, (66), 19 states have internal predecessors, (66), 6 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 40 [2024-11-14 03:51:06,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:51:06,208 INFO L225 Difference]: With dead ends: 283 [2024-11-14 03:51:06,208 INFO L226 Difference]: Without dead ends: 282 [2024-11-14 03:51:06,209 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 88 SyntacticMatches, 3 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 745 ImplicationChecksByTransitivity, 14.1s TimeCoverageRelationStatistics Valid=347, Invalid=2004, Unknown=1, NotChecked=0, Total=2352 [2024-11-14 03:51:06,210 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 225 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:51:06,210 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 615 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:51:06,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2024-11-14 03:51:06,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 249. [2024-11-14 03:51:06,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 194 states have (on average 1.407216494845361) internal successors, (273), 214 states have internal predecessors, (273), 26 states have call successors, (26), 8 states have call predecessors, (26), 8 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-14 03:51:06,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 325 transitions. [2024-11-14 03:51:06,252 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 325 transitions. Word has length 40 [2024-11-14 03:51:06,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:51:06,252 INFO L471 AbstractCegarLoop]: Abstraction has 249 states and 325 transitions. [2024-11-14 03:51:06,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.6666666666666665) internal successors, (66), 19 states have internal predecessors, (66), 6 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-14 03:51:06,253 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 325 transitions. [2024-11-14 03:51:06,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-14 03:51:06,253 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:51:06,254 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2024-11-14 03:51:06,277 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-14 03:51:06,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-14 03:51:06,454 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 03:51:06,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:51:06,455 INFO L85 PathProgramCache]: Analyzing trace with hash -766647724, now seen corresponding path program 1 times [2024-11-14 03:51:06,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:51:06,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066522600] [2024-11-14 03:51:06,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:51:06,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:51:06,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:51:06,549 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-14 03:51:06,549 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:51:06,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066522600] [2024-11-14 03:51:06,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066522600] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:51:06,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [793714768] [2024-11-14 03:51:06,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:51:06,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:51:06,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:51:06,553 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:51:06,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-14 03:51:06,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:51:06,613 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:51:06,615 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:51:06,688 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-14 03:51:06,689 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:51:06,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [793714768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:51:06,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:51:06,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-11-14 03:51:06,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931001549] [2024-11-14 03:51:06,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:51:06,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:51:06,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:51:06,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:51:06,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:51:06,690 INFO L87 Difference]: Start difference. First operand 249 states and 325 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 03:51:06,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:51:06,831 INFO L93 Difference]: Finished difference Result 257 states and 332 transitions. [2024-11-14 03:51:06,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:51:06,832 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 40 [2024-11-14 03:51:06,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:51:06,834 INFO L225 Difference]: With dead ends: 257 [2024-11-14 03:51:06,834 INFO L226 Difference]: Without dead ends: 254 [2024-11-14 03:51:06,834 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:51:06,835 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 69 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:51:06,835 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 112 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:51:06,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2024-11-14 03:51:06,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 246. [2024-11-14 03:51:06,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 194 states have (on average 1.3350515463917525) internal successors, (259), 211 states have internal predecessors, (259), 26 states have call successors, (26), 8 states have call predecessors, (26), 8 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-14 03:51:06,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 311 transitions. [2024-11-14 03:51:06,876 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 311 transitions. Word has length 40 [2024-11-14 03:51:06,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:51:06,876 INFO L471 AbstractCegarLoop]: Abstraction has 246 states and 311 transitions. [2024-11-14 03:51:06,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 03:51:06,877 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 311 transitions. [2024-11-14 03:51:06,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-14 03:51:06,877 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:51:06,877 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-11-14 03:51:06,898 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-14 03:51:07,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-14 03:51:07,081 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 03:51:07,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:51:07,082 INFO L85 PathProgramCache]: Analyzing trace with hash 2003724404, now seen corresponding path program 1 times [2024-11-14 03:51:07,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:51:07,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209485886] [2024-11-14 03:51:07,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:51:07,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:51:07,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:51:07,150 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-14 03:51:07,150 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:51:07,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209485886] [2024-11-14 03:51:07,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209485886] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:51:07,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [704517151] [2024-11-14 03:51:07,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:51:07,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:51:07,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:51:07,153 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:51:07,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-14 03:51:07,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:51:07,217 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:51:07,219 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:51:07,292 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-14 03:51:07,293 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:51:07,398 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-14 03:51:07,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [704517151] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:51:07,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [976045862] [2024-11-14 03:51:07,400 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2024-11-14 03:51:07,400 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:51:07,401 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:51:07,401 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:51:07,401 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:51:08,880 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 30 for LOIs [2024-11-14 03:51:08,887 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:51:20,686 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8288#(and (<= 1 |#StackHeapBarrier|) (<= 1 ~counter~0) (= |ULTIMATE.start_main_~q~0#1| 0) (exists ((|v_ULTIMATE.start_main_~p~0#1_67| Int)) (and (<= (* |v_ULTIMATE.start_main_~p~0#1_67| (mod |ULTIMATE.start_main_~B~0#1| 4294967296)) 4611686018427387903) (<= (* |v_ULTIMATE.start_main_~p~0#1_67| (mod |ULTIMATE.start_main_~B~0#1| 4294967296)) |ULTIMATE.start_main_~r~0#1|) (= |ULTIMATE.start_main_~d~0#1| (* 2 (* |v_ULTIMATE.start_main_~p~0#1_67| (mod |ULTIMATE.start_main_~B~0#1| 4294967296)))) (<= 4611686018427387904 |v_ULTIMATE.start_main_~p~0#1_67|))))' at error location [2024-11-14 03:51:20,686 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:51:20,687 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:51:20,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-14 03:51:20,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133979156] [2024-11-14 03:51:20,687 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:51:20,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 03:51:20,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:51:20,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 03:51:20,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=418, Unknown=1, NotChecked=0, Total=506 [2024-11-14 03:51:20,688 INFO L87 Difference]: Start difference. First operand 246 states and 311 transitions. Second operand has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 7 states have internal predecessors, (59), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-14 03:51:21,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:51:21,137 INFO L93 Difference]: Finished difference Result 448 states and 575 transitions. [2024-11-14 03:51:21,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 03:51:21,138 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 7 states have internal predecessors, (59), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 41 [2024-11-14 03:51:21,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:51:21,140 INFO L225 Difference]: With dead ends: 448 [2024-11-14 03:51:21,141 INFO L226 Difference]: Without dead ends: 445 [2024-11-14 03:51:21,141 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 101 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 11.8s TimeCoverageRelationStatistics Valid=87, Invalid=418, Unknown=1, NotChecked=0, Total=506 [2024-11-14 03:51:21,142 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 145 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:51:21,142 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 279 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 03:51:21,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2024-11-14 03:51:21,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 392. [2024-11-14 03:51:21,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 327 states have (on average 1.3608562691131498) internal successors, (445), 344 states have internal predecessors, (445), 39 states have call successors, (39), 8 states have call predecessors, (39), 8 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-14 03:51:21,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 523 transitions. [2024-11-14 03:51:21,211 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 523 transitions. Word has length 41 [2024-11-14 03:51:21,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:51:21,211 INFO L471 AbstractCegarLoop]: Abstraction has 392 states and 523 transitions. [2024-11-14 03:51:21,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 7 states have internal predecessors, (59), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-14 03:51:21,212 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 523 transitions. [2024-11-14 03:51:21,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-14 03:51:21,213 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:51:21,214 INFO L215 NwaCegarLoop]: trace histogram [8, 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:51:21,239 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-14 03:51:21,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-14 03:51:21,418 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 03:51:21,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:51:21,418 INFO L85 PathProgramCache]: Analyzing trace with hash -548779887, now seen corresponding path program 1 times [2024-11-14 03:51:21,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:51:21,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764230720] [2024-11-14 03:51:21,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:51:21,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:51:21,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:51:21,557 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-14 03:51:21,557 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:51:21,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764230720] [2024-11-14 03:51:21,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764230720] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:51:21,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1729010292] [2024-11-14 03:51:21,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:51:21,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:51:21,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:51:21,560 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:51:21,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-14 03:51:21,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:51:21,630 INFO L255 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 03:51:21,632 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:51:21,998 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-14 03:51:21,998 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:51:22,216 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-14 03:51:22,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1729010292] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:51:22,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1480717872] [2024-11-14 03:51:22,219 INFO L159 IcfgInterpreter]: Started Sifa with 33 locations of interest [2024-11-14 03:51:22,219 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:51:22,220 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:51:22,220 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:51:22,220 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:51:23,747 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 6 for LOIs [2024-11-14 03:51:23,748 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:51:26,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1480717872] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:51:26,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:51:26,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4, 4, 4] total 30 [2024-11-14 03:51:26,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380970615] [2024-11-14 03:51:26,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:51:26,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-14 03:51:26,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:51:26,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-14 03:51:26,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=206, Invalid=724, Unknown=0, NotChecked=0, Total=930 [2024-11-14 03:51:26,987 INFO L87 Difference]: Start difference. First operand 392 states and 523 transitions. Second operand has 22 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 19 states have internal predecessors, (27), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-14 03:51:33,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:51:33,287 INFO L93 Difference]: Finished difference Result 420 states and 549 transitions. [2024-11-14 03:51:33,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-14 03:51:33,287 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 19 states have internal predecessors, (27), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 56 [2024-11-14 03:51:33,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:51:33,290 INFO L225 Difference]: With dead ends: 420 [2024-11-14 03:51:33,290 INFO L226 Difference]: Without dead ends: 418 [2024-11-14 03:51:33,291 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 132 SyntacticMatches, 9 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 725 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=485, Invalid=1867, Unknown=0, NotChecked=0, Total=2352 [2024-11-14 03:51:33,292 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 78 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:51:33,293 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 121 Invalid, 782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 760 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-14 03:51:33,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2024-11-14 03:51:33,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 391. [2024-11-14 03:51:33,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 325 states have (on average 1.3476923076923077) internal successors, (438), 343 states have internal predecessors, (438), 39 states have call successors, (39), 9 states have call predecessors, (39), 9 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-14 03:51:33,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 516 transitions. [2024-11-14 03:51:33,351 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 516 transitions. Word has length 56 [2024-11-14 03:51:33,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:51:33,351 INFO L471 AbstractCegarLoop]: Abstraction has 391 states and 516 transitions. [2024-11-14 03:51:33,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 19 states have internal predecessors, (27), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-14 03:51:33,351 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 516 transitions. [2024-11-14 03:51:33,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-14 03:51:33,353 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:51:33,353 INFO L215 NwaCegarLoop]: trace histogram [8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:51:33,377 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-14 03:51:33,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:51:33,554 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 03:51:33,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:51:33,554 INFO L85 PathProgramCache]: Analyzing trace with hash 689323061, now seen corresponding path program 1 times [2024-11-14 03:51:33,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:51:33,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169047165] [2024-11-14 03:51:33,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:51:33,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:51:33,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:51:33,631 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-14 03:51:33,631 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:51:33,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169047165] [2024-11-14 03:51:33,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169047165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:51:33,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:51:33,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:51:33,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739294889] [2024-11-14 03:51:33,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:51:33,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:51:33,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:51:33,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:51:33,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:51:33,637 INFO L87 Difference]: Start difference. First operand 391 states and 516 transitions. Second operand has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-14 03:51:33,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:51:33,819 INFO L93 Difference]: Finished difference Result 391 states and 516 transitions. [2024-11-14 03:51:33,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:51:33,820 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), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 60 [2024-11-14 03:51:33,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:51:33,824 INFO L225 Difference]: With dead ends: 391 [2024-11-14 03:51:33,825 INFO L226 Difference]: Without dead ends: 390 [2024-11-14 03:51:33,826 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:51:33,826 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 2 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:51:33,827 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 103 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:51:33,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2024-11-14 03:51:33,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 390. [2024-11-14 03:51:33,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 325 states have (on average 1.3261538461538462) internal successors, (431), 342 states have internal predecessors, (431), 39 states have call successors, (39), 9 states have call predecessors, (39), 9 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-14 03:51:33,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 509 transitions. [2024-11-14 03:51:33,906 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 509 transitions. Word has length 60 [2024-11-14 03:51:33,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:51:33,906 INFO L471 AbstractCegarLoop]: Abstraction has 390 states and 509 transitions. [2024-11-14 03:51:33,906 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), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-14 03:51:33,906 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 509 transitions. [2024-11-14 03:51:33,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-14 03:51:33,907 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:51:33,907 INFO L215 NwaCegarLoop]: trace histogram [8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:51:33,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-14 03:51:33,908 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 03:51:33,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:51:33,908 INFO L85 PathProgramCache]: Analyzing trace with hash -105821468, now seen corresponding path program 1 times [2024-11-14 03:51:33,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:51:33,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924867369] [2024-11-14 03:51:33,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:51:33,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:51:33,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:51:34,085 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-14 03:51:34,085 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:51:34,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924867369] [2024-11-14 03:51:34,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924867369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:51:34,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:51:34,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 03:51:34,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301256951] [2024-11-14 03:51:34,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:51:34,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 03:51:34,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:51:34,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 03:51:34,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-14 03:51:34,087 INFO L87 Difference]: Start difference. First operand 390 states and 509 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 03:51:34,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:51:34,705 INFO L93 Difference]: Finished difference Result 593 states and 815 transitions. [2024-11-14 03:51:34,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 03:51:34,705 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 61 [2024-11-14 03:51:34,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:51:34,708 INFO L225 Difference]: With dead ends: 593 [2024-11-14 03:51:34,708 INFO L226 Difference]: Without dead ends: 592 [2024-11-14 03:51:34,709 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:51:34,710 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 114 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:51:34,710 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 249 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 03:51:34,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2024-11-14 03:51:34,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 530. [2024-11-14 03:51:34,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 453 states have (on average 1.3951434878587197) internal successors, (632), 469 states have internal predecessors, (632), 51 states have call successors, (51), 9 states have call predecessors, (51), 9 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-14 03:51:34,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 734 transitions. [2024-11-14 03:51:34,791 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 734 transitions. Word has length 61 [2024-11-14 03:51:34,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:51:34,791 INFO L471 AbstractCegarLoop]: Abstraction has 530 states and 734 transitions. [2024-11-14 03:51:34,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 03:51:34,792 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 734 transitions. [2024-11-14 03:51:34,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-14 03:51:34,792 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:51:34,793 INFO L215 NwaCegarLoop]: trace histogram [8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:51:34,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-14 03:51:34,793 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 03:51:34,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:51:34,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1014501911, now seen corresponding path program 1 times [2024-11-14 03:51:34,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:51:34,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498442715] [2024-11-14 03:51:34,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:51:34,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:51:34,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:51:34,976 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-14 03:51:34,977 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:51:34,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498442715] [2024-11-14 03:51:34,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498442715] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:51:34,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [160355398] [2024-11-14 03:51:34,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:51:34,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:51:34,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:51:34,980 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:51:34,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-14 03:51:35,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:51:35,051 INFO L255 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:51:35,053 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:51:35,302 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-14 03:51:35,303 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:51:35,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [160355398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:51:35,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:51:35,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-11-14 03:51:35,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064448596] [2024-11-14 03:51:35,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:51:35,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:51:35,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:51:35,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:51:35,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:51:35,305 INFO L87 Difference]: Start difference. First operand 530 states and 734 transitions. Second operand has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-14 03:51:35,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:51:35,637 INFO L93 Difference]: Finished difference Result 549 states and 752 transitions. [2024-11-14 03:51:35,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:51:35,641 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 62 [2024-11-14 03:51:35,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:51:35,644 INFO L225 Difference]: With dead ends: 549 [2024-11-14 03:51:35,644 INFO L226 Difference]: Without dead ends: 548 [2024-11-14 03:51:35,644 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 59 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:51:35,646 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 64 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:51:35,646 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 105 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:51:35,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2024-11-14 03:51:35,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 539. [2024-11-14 03:51:35,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 462 states have (on average 1.3766233766233766) internal successors, (636), 478 states have internal predecessors, (636), 51 states have call successors, (51), 9 states have call predecessors, (51), 9 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-14 03:51:35,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 738 transitions. [2024-11-14 03:51:35,761 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 738 transitions. Word has length 62 [2024-11-14 03:51:35,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:51:35,762 INFO L471 AbstractCegarLoop]: Abstraction has 539 states and 738 transitions. [2024-11-14 03:51:35,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-14 03:51:35,762 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 738 transitions. [2024-11-14 03:51:35,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-14 03:51:35,763 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:51:35,763 INFO L215 NwaCegarLoop]: trace histogram [8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:51:35,787 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-14 03:51:35,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-14 03:51:35,964 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 03:51:35,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:51:35,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1384788294, now seen corresponding path program 1 times [2024-11-14 03:51:35,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:51:35,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753368095] [2024-11-14 03:51:35,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:51:35,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:51:35,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:51:36,167 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-14 03:51:36,168 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:51:36,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753368095] [2024-11-14 03:51:36,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753368095] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:51:36,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1581582291] [2024-11-14 03:51:36,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:51:36,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:51:36,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:51:36,171 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:51:36,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-14 03:51:36,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:51:36,251 INFO L255 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:51:36,254 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:51:36,461 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-14 03:51:36,461 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:51:36,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1581582291] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:51:36,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:51:36,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-14 03:51:36,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729182095] [2024-11-14 03:51:36,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:51:36,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:51:36,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:51:36,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:51:36,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:51:36,465 INFO L87 Difference]: Start difference. First operand 539 states and 738 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-14 03:51:36,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:51:36,820 INFO L93 Difference]: Finished difference Result 549 states and 744 transitions. [2024-11-14 03:51:36,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:51:36,821 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 63 [2024-11-14 03:51:36,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:51:36,824 INFO L225 Difference]: With dead ends: 549 [2024-11-14 03:51:36,824 INFO L226 Difference]: Without dead ends: 547 [2024-11-14 03:51:36,825 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:51:36,826 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 33 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:51:36,826 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 102 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:51:36,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2024-11-14 03:51:36,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 542. [2024-11-14 03:51:36,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 465 states have (on average 1.356989247311828) internal successors, (631), 481 states have internal predecessors, (631), 51 states have call successors, (51), 9 states have call predecessors, (51), 9 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-14 03:51:36,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 733 transitions. [2024-11-14 03:51:36,919 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 733 transitions. Word has length 63 [2024-11-14 03:51:36,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:51:36,919 INFO L471 AbstractCegarLoop]: Abstraction has 542 states and 733 transitions. [2024-11-14 03:51:36,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-14 03:51:36,920 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 733 transitions. [2024-11-14 03:51:36,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-14 03:51:36,921 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:51:36,921 INFO L215 NwaCegarLoop]: trace histogram [8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:51:36,944 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-14 03:51:37,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-14 03:51:37,122 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 03:51:37,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:51:37,122 INFO L85 PathProgramCache]: Analyzing trace with hash -854560742, now seen corresponding path program 1 times [2024-11-14 03:51:37,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:51:37,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950900418] [2024-11-14 03:51:37,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:51:37,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:51:37,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:51:37,347 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-14 03:51:37,347 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:51:37,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950900418] [2024-11-14 03:51:37,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950900418] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:51:37,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [250931204] [2024-11-14 03:51:37,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:51:37,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:51:37,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:51:37,350 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:51:37,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-14 03:51:37,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:51:37,420 INFO L255 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 03:51:37,422 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:51:37,570 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 03:51:37,570 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:51:37,800 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-14 03:51:37,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [250931204] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:51:37,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [653053452] [2024-11-14 03:51:37,803 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-14 03:51:37,803 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:51:37,803 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:51:37,803 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:51:37,803 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:51:39,748 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 03:51:39,932 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 03:51:41,017 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2024-11-14 03:51:41,022 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:51:48,444 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '16396#(and (<= 101 ~counter~0) (exists ((v_~counter~0_61 Int) (|v_ULTIMATE.start_main_~q~0#1_48| Int) (|v_ULTIMATE.start_main_~d~0#1_88| Int)) (and (<= 1 |#StackHeapBarrier|) (<= v_~counter~0_61 100) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~r~0#1| |v_ULTIMATE.start_main_~d~0#1_88|)) (<= (+ |ULTIMATE.start_main_~r~0#1| |v_ULTIMATE.start_main_~d~0#1_88|) 9223372036854775807) (<= |v_ULTIMATE.start_main_~q~0#1_48| 9223372036854775807) (<= 0 |ULTIMATE.start_main_~r~0#1|) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_48| 9223372036854775808)) (<= (+ 9223372036854775809 (* |v_ULTIMATE.start_main_~q~0#1_48| |v_ULTIMATE.start_main_~d~0#1_88|)) 0) (= ~counter~0 (+ v_~counter~0_61 1)) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807))))' at error location [2024-11-14 03:51:48,444 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:51:48,444 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:51:48,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 10] total 21 [2024-11-14 03:51:48,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106853398] [2024-11-14 03:51:48,445 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:51:48,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-14 03:51:48,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:51:48,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-14 03:51:48,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=290, Invalid=2572, Unknown=0, NotChecked=0, Total=2862 [2024-11-14 03:51:48,447 INFO L87 Difference]: Start difference. First operand 542 states and 733 transitions. Second operand has 21 states, 21 states have (on average 4.571428571428571) internal successors, (96), 21 states have internal predecessors, (96), 6 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) [2024-11-14 03:51:49,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:51:49,183 INFO L93 Difference]: Finished difference Result 691 states and 909 transitions. [2024-11-14 03:51:49,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-14 03:51:49,184 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 4.571428571428571) internal successors, (96), 21 states have internal predecessors, (96), 6 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) Word has length 68 [2024-11-14 03:51:49,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:51:49,190 INFO L225 Difference]: With dead ends: 691 [2024-11-14 03:51:49,191 INFO L226 Difference]: Without dead ends: 682 [2024-11-14 03:51:49,192 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 156 SyntacticMatches, 5 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1975 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=495, Invalid=4335, Unknown=0, NotChecked=0, Total=4830 [2024-11-14 03:51:49,193 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 124 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:51:49,193 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 591 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:51:49,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2024-11-14 03:51:49,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 640. [2024-11-14 03:51:49,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 552 states have (on average 1.355072463768116) internal successors, (748), 568 states have internal predecessors, (748), 59 states have call successors, (59), 12 states have call predecessors, (59), 12 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-14 03:51:49,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 866 transitions. [2024-11-14 03:51:49,283 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 866 transitions. Word has length 68 [2024-11-14 03:51:49,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:51:49,283 INFO L471 AbstractCegarLoop]: Abstraction has 640 states and 866 transitions. [2024-11-14 03:51:49,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 4.571428571428571) internal successors, (96), 21 states have internal predecessors, (96), 6 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) [2024-11-14 03:51:49,284 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 866 transitions. [2024-11-14 03:51:49,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-14 03:51:49,285 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:51:49,285 INFO L215 NwaCegarLoop]: trace histogram [8, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:51:49,310 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-14 03:51:49,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-14 03:51:49,486 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 03:51:49,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:51:49,487 INFO L85 PathProgramCache]: Analyzing trace with hash -854560724, now seen corresponding path program 1 times [2024-11-14 03:51:49,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:51:49,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052551994] [2024-11-14 03:51:49,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:51:49,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:51:49,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:51:49,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [894689880] [2024-11-14 03:51:49,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:51:49,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:51:49,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:51:49,521 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:51:49,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-14 03:51:49,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:51:49,590 INFO L255 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 03:51:49,592 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:51:50,066 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-14 03:51:50,066 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:51:50,682 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:51:50,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052551994] [2024-11-14 03:51:50,682 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:51:50,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [894689880] [2024-11-14 03:51:50,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [894689880] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:51:50,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [365524051] [2024-11-14 03:51:50,685 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-14 03:51:50,685 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:51:50,685 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:51:50,686 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:51:50,686 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:51:52,328 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 03:51:52,500 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 03:51:53,458 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2024-11-14 03:51:53,463 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:52:22,372 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '18298#(and (exists ((v_~counter~0_71 Int) (|v_ULTIMATE.start_main_~B~0#1_40| Int) (|v_ULTIMATE.start_main_~q~0#1_54| Int)) (and (<= 1 |#StackHeapBarrier|) (= ~counter~0 (+ v_~counter~0_71 1)) (<= (+ 9223372036854775809 (* |v_ULTIMATE.start_main_~q~0#1_54| (mod |v_ULTIMATE.start_main_~B~0#1_40| 4294967296))) 0) (<= 0 |ULTIMATE.start_main_~r~0#1|) (<= 2 v_~counter~0_71) (<= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) 9223372036854775807) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_54| 9223372036854775808)) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807))) (<= ~counter~0 100))' at error location [2024-11-14 03:52:22,372 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:52:22,372 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:52:22,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-14 03:52:22,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188898075] [2024-11-14 03:52:22,373 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 03:52:22,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 03:52:22,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:52:22,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 03:52:22,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=245, Invalid=1393, Unknown=2, NotChecked=0, Total=1640 [2024-11-14 03:52:22,374 INFO L87 Difference]: Start difference. First operand 640 states and 866 transitions. Second operand has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-14 03:52:22,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:52:22,753 INFO L93 Difference]: Finished difference Result 664 states and 881 transitions. [2024-11-14 03:52:22,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 03:52:22,754 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 68 [2024-11-14 03:52:22,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:52:22,756 INFO L225 Difference]: With dead ends: 664 [2024-11-14 03:52:22,756 INFO L226 Difference]: Without dead ends: 417 [2024-11-14 03:52:22,757 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 107 SyntacticMatches, 5 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 634 ImplicationChecksByTransitivity, 29.1s TimeCoverageRelationStatistics Valid=253, Invalid=1467, Unknown=2, NotChecked=0, Total=1722 [2024-11-14 03:52:22,758 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 59 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:52:22,758 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 205 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 03:52:22,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-11-14 03:52:22,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 413. [2024-11-14 03:52:22,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 344 states have (on average 1.322674418604651) internal successors, (455), 360 states have internal predecessors, (455), 41 states have call successors, (41), 11 states have call predecessors, (41), 11 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-14 03:52:22,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 537 transitions. [2024-11-14 03:52:22,823 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 537 transitions. Word has length 68 [2024-11-14 03:52:22,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:52:22,824 INFO L471 AbstractCegarLoop]: Abstraction has 413 states and 537 transitions. [2024-11-14 03:52:22,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-14 03:52:22,824 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 537 transitions. [2024-11-14 03:52:22,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-14 03:52:22,825 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:52:22,825 INFO L215 NwaCegarLoop]: trace histogram [8, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:52:22,848 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-14 03:52:23,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-14 03:52:23,030 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 03:52:23,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:52:23,030 INFO L85 PathProgramCache]: Analyzing trace with hash -721578577, now seen corresponding path program 1 times [2024-11-14 03:52:23,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:52:23,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783738772] [2024-11-14 03:52:23,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:52:23,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:52:23,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:52:23,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1583963791] [2024-11-14 03:52:23,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:52:23,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:52:23,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:52:23,065 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:52:23,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-14 03:52:23,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:52:23,140 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 03:52:23,142 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:52:23,605 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-14 03:52:23,605 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:52:24,014 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:52:24,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783738772] [2024-11-14 03:52:24,014 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:52:24,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1583963791] [2024-11-14 03:52:24,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1583963791] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:52:24,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1944805951] [2024-11-14 03:52:24,017 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-14 03:52:24,017 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:52:24,018 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:52:24,018 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:52:24,018 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:52:25,322 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 03:52:25,416 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 03:52:26,208 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2024-11-14 03:52:26,213 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:52:35,770 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '19886#(and (exists ((|v_ULTIMATE.start_main_~B~0#1_41| Int) (|v_ULTIMATE.start_main_~q~0#1_60| Int) (v_~counter~0_81 Int)) (and (<= 1 |#StackHeapBarrier|) (= ~counter~0 (+ v_~counter~0_81 1)) (<= 0 |ULTIMATE.start_main_~r~0#1|) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_60| (mod |v_ULTIMATE.start_main_~B~0#1_41| 4294967296))) (<= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) 9223372036854775807) (<= |v_ULTIMATE.start_main_~q~0#1_60| 9223372036854775807) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807) (<= 3 ~counter~0))) (<= ~counter~0 100))' at error location [2024-11-14 03:52:35,770 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:52:35,770 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:52:35,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-14 03:52:35,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90906140] [2024-11-14 03:52:35,771 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 03:52:35,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 03:52:35,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:52:35,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 03:52:35,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=256, Invalid=1384, Unknown=0, NotChecked=0, Total=1640 [2024-11-14 03:52:35,773 INFO L87 Difference]: Start difference. First operand 413 states and 537 transitions. Second operand has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-14 03:52:35,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:52:35,986 INFO L93 Difference]: Finished difference Result 422 states and 544 transitions. [2024-11-14 03:52:35,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:52:35,987 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 69 [2024-11-14 03:52:35,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:52:35,989 INFO L225 Difference]: With dead ends: 422 [2024-11-14 03:52:35,989 INFO L226 Difference]: Without dead ends: 421 [2024-11-14 03:52:35,990 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 110 SyntacticMatches, 5 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 640 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=256, Invalid=1384, Unknown=0, NotChecked=0, Total=1640 [2024-11-14 03:52:35,991 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 50 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:52:35,991 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 130 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:52:35,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2024-11-14 03:52:36,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 413. [2024-11-14 03:52:36,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 344 states have (on average 1.319767441860465) internal successors, (454), 360 states have internal predecessors, (454), 41 states have call successors, (41), 11 states have call predecessors, (41), 11 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-14 03:52:36,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 536 transitions. [2024-11-14 03:52:36,051 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 536 transitions. Word has length 69 [2024-11-14 03:52:36,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:52:36,051 INFO L471 AbstractCegarLoop]: Abstraction has 413 states and 536 transitions. [2024-11-14 03:52:36,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-14 03:52:36,052 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 536 transitions. [2024-11-14 03:52:36,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-14 03:52:36,052 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:52:36,053 INFO L215 NwaCegarLoop]: trace histogram [8, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:52:36,074 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-14 03:52:36,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-14 03:52:36,254 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 03:52:36,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:52:36,255 INFO L85 PathProgramCache]: Analyzing trace with hash -894099314, now seen corresponding path program 1 times [2024-11-14 03:52:36,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:52:36,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559186009] [2024-11-14 03:52:36,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:52:36,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:52:36,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:52:36,428 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-14 03:52:36,428 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:52:36,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559186009] [2024-11-14 03:52:36,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559186009] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:52:36,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:52:36,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:52:36,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186513646] [2024-11-14 03:52:36,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:52:36,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:52:36,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:52:36,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:52:36,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:52:36,431 INFO L87 Difference]: Start difference. First operand 413 states and 536 transitions. Second operand has 5 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-14 03:52:37,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:52:37,356 INFO L93 Difference]: Finished difference Result 418 states and 543 transitions. [2024-11-14 03:52:37,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:52:37,356 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 70 [2024-11-14 03:52:37,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:52:37,359 INFO L225 Difference]: With dead ends: 418 [2024-11-14 03:52:37,359 INFO L226 Difference]: Without dead ends: 417 [2024-11-14 03:52:37,359 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:52:37,360 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 91 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 03:52:37,360 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 85 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 03:52:37,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-11-14 03:52:37,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 398. [2024-11-14 03:52:37,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 330 states have (on average 1.293939393939394) internal successors, (427), 345 states have internal predecessors, (427), 41 states have call successors, (41), 11 states have call predecessors, (41), 11 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-14 03:52:37,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 509 transitions. [2024-11-14 03:52:37,433 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 509 transitions. Word has length 70 [2024-11-14 03:52:37,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:52:37,433 INFO L471 AbstractCegarLoop]: Abstraction has 398 states and 509 transitions. [2024-11-14 03:52:37,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-14 03:52:37,433 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 509 transitions. [2024-11-14 03:52:37,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-14 03:52:37,434 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:52:37,435 INFO L215 NwaCegarLoop]: trace histogram [8, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:52:37,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-14 03:52:37,435 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 03:52:37,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:52:37,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1947274863, now seen corresponding path program 1 times [2024-11-14 03:52:37,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:52:37,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127265570] [2024-11-14 03:52:37,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:52:37,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:52:37,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:52:37,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1657135000] [2024-11-14 03:52:37,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:52:37,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:52:37,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:52:37,472 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:52:37,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-14 03:52:37,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:52:37,554 INFO L255 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-14 03:52:37,557 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:52:38,624 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-14 03:52:38,624 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:52:41,416 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-14 03:52:41,417 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:52:41,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127265570] [2024-11-14 03:52:41,417 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:52:41,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1657135000] [2024-11-14 03:52:41,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1657135000] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:52:41,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [261317091] [2024-11-14 03:52:41,419 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-14 03:52:41,419 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:52:41,420 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:52:41,420 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:52:41,420 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:52:42,797 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 03:52:42,904 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 03:52:43,951 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2024-11-14 03:52:43,956 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:53:12,236 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '22364#(and (exists ((v_~counter~0_94 Int) (|v_ULTIMATE.start_main_~B~0#1_42| Int) (|v_ULTIMATE.start_main_~r~0#1_57| Int) (|v_ULTIMATE.start_main_~q~0#1_66| Int)) (and (<= 1 |#StackHeapBarrier|) (<= (+ |ULTIMATE.start_main_~d~0#1| |v_ULTIMATE.start_main_~r~0#1_57|) 9223372036854775807) (<= 9223372036854775808 (+ (* |v_ULTIMATE.start_main_~q~0#1_66| (mod |v_ULTIMATE.start_main_~B~0#1_42| 4294967296)) |v_ULTIMATE.start_main_~r~0#1_57|)) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~d~0#1| |v_ULTIMATE.start_main_~r~0#1_57|)) (= ~counter~0 (+ v_~counter~0_94 1)) (<= (* |v_ULTIMATE.start_main_~q~0#1_66| (mod |v_ULTIMATE.start_main_~B~0#1_42| 4294967296)) 9223372036854775807) (<= |v_ULTIMATE.start_main_~r~0#1_57| 9223372036854775807) (<= 3 ~counter~0))) (<= ~counter~0 100))' at error location [2024-11-14 03:53:12,236 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:53:12,236 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:53:12,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2024-11-14 03:53:12,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593832604] [2024-11-14 03:53:12,237 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 03:53:12,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-14 03:53:12,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:53:12,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-14 03:53:12,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=1813, Unknown=4, NotChecked=0, Total=2070 [2024-11-14 03:53:12,239 INFO L87 Difference]: Start difference. First operand 398 states and 509 transitions. Second operand has 14 states, 13 states have (on average 7.3076923076923075) internal successors, (95), 14 states have internal predecessors, (95), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-14 03:53:15,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:53:15,462 INFO L93 Difference]: Finished difference Result 500 states and 645 transitions. [2024-11-14 03:53:15,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-14 03:53:15,463 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 7.3076923076923075) internal successors, (95), 14 states have internal predecessors, (95), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 71 [2024-11-14 03:53:15,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:53:15,467 INFO L225 Difference]: With dead ends: 500 [2024-11-14 03:53:15,467 INFO L226 Difference]: Without dead ends: 499 [2024-11-14 03:53:15,469 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 161 SyntacticMatches, 6 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 979 ImplicationChecksByTransitivity, 29.8s TimeCoverageRelationStatistics Valid=367, Invalid=2599, Unknown=4, NotChecked=0, Total=2970 [2024-11-14 03:53:15,469 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 325 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-14 03:53:15,470 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 275 Invalid, 701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-14 03:53:15,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2024-11-14 03:53:15,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 418. [2024-11-14 03:53:15,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 350 states have (on average 1.2971428571428572) internal successors, (454), 365 states have internal predecessors, (454), 41 states have call successors, (41), 11 states have call predecessors, (41), 11 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-14 03:53:15,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 536 transitions. [2024-11-14 03:53:15,564 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 536 transitions. Word has length 71 [2024-11-14 03:53:15,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:53:15,565 INFO L471 AbstractCegarLoop]: Abstraction has 418 states and 536 transitions. [2024-11-14 03:53:15,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 7.3076923076923075) internal successors, (95), 14 states have internal predecessors, (95), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-14 03:53:15,565 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 536 transitions. [2024-11-14 03:53:15,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-14 03:53:15,566 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:53:15,566 INFO L215 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1] [2024-11-14 03:53:15,591 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-14 03:53:15,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:53:15,772 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 03:53:15,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:53:15,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1350214992, now seen corresponding path program 1 times [2024-11-14 03:53:15,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:53:15,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155944038] [2024-11-14 03:53:15,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:15,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:53:15,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:53:15,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [569831175] [2024-11-14 03:53:15,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:15,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:53:15,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:53:15,815 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:53:15,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-14 03:53:15,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:53:15,912 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 03:53:15,914 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:53:16,188 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 10 proven. 13 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-14 03:53:16,188 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:53:16,774 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:53:16,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155944038] [2024-11-14 03:53:16,774 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:53:16,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [569831175] [2024-11-14 03:53:16,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [569831175] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:53:16,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1460274393] [2024-11-14 03:53:16,776 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-14 03:53:16,777 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:53:16,777 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:53:16,777 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:53:16,777 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:53:18,328 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 03:53:18,436 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 03:53:19,358 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2024-11-14 03:53:19,363 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:53:27,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1460274393] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:53:27,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:53:27,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [5] total 37 [2024-11-14 03:53:27,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234609476] [2024-11-14 03:53:27,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:53:27,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-14 03:53:27,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:53:27,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-14 03:53:27,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=248, Invalid=1474, Unknown=0, NotChecked=0, Total=1722 [2024-11-14 03:53:27,952 INFO L87 Difference]: Start difference. First operand 418 states and 536 transitions. Second operand has 34 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 29 states have internal predecessors, (36), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-14 03:53:37,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:53:37,320 INFO L93 Difference]: Finished difference Result 696 states and 940 transitions. [2024-11-14 03:53:37,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-14 03:53:37,321 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 29 states have internal predecessors, (36), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 81 [2024-11-14 03:53:37,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:53:37,322 INFO L225 Difference]: With dead ends: 696 [2024-11-14 03:53:37,322 INFO L226 Difference]: Without dead ends: 441 [2024-11-14 03:53:37,324 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 145 SyntacticMatches, 5 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1589 ImplicationChecksByTransitivity, 13.7s TimeCoverageRelationStatistics Valid=611, Invalid=4081, Unknown=0, NotChecked=0, Total=4692 [2024-11-14 03:53:37,325 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 147 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 1316 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 1379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:53:37,325 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 130 Invalid, 1379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1316 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-14 03:53:37,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2024-11-14 03:53:37,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 423. [2024-11-14 03:53:37,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 356 states have (on average 1.3117977528089888) internal successors, (467), 371 states have internal predecessors, (467), 41 states have call successors, (41), 10 states have call predecessors, (41), 10 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-14 03:53:37,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 549 transitions. [2024-11-14 03:53:37,418 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 549 transitions. Word has length 81 [2024-11-14 03:53:37,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:53:37,418 INFO L471 AbstractCegarLoop]: Abstraction has 423 states and 549 transitions. [2024-11-14 03:53:37,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 29 states have internal predecessors, (36), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-14 03:53:37,419 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 549 transitions. [2024-11-14 03:53:37,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-14 03:53:37,420 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:53:37,420 INFO L215 NwaCegarLoop]: trace histogram [11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2024-11-14 03:53:37,444 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-14 03:53:37,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-14 03:53:37,625 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 03:53:37,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:53:37,625 INFO L85 PathProgramCache]: Analyzing trace with hash -397280979, now seen corresponding path program 2 times [2024-11-14 03:53:37,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:53:37,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338076909] [2024-11-14 03:53:37,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:37,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:53:37,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:53:37,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1886666239] [2024-11-14 03:53:37,665 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:53:37,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:53:37,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:53:37,667 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:53:37,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-14 03:53:37,751 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-14 03:53:37,752 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:53:37,753 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-14 03:53:37,756 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:53:54,187 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 32 proven. 5 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-14 03:53:54,187 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:54:02,556 WARN L286 SmtUtils]: Spent 6.01s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-14 03:54:06,594 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse0 (+ (div |c_ULTIMATE.start_main_~d~0#1| 2) 9223372036854775809)) (.cse1 (mod |c_ULTIMATE.start_main_~B~0#1| 4294967296))) (or (< .cse0 0) (let ((.cse2 (div |c_ULTIMATE.start_main_~p~0#1| 2))) (and (or (not (= (mod |c_ULTIMATE.start_main_~p~0#1| 2) 0)) (forall ((|v_ULTIMATE.start_main_~q~0#1_74| Int)) (< 0 (+ 9223372036854775809 (* |v_ULTIMATE.start_main_~q~0#1_74| .cse1))))) (or (forall ((|v_ULTIMATE.start_main_~q~0#1_74| Int)) (or (< 0 (+ 9223372036854775809 (* |v_ULTIMATE.start_main_~q~0#1_74| .cse1))) (< |v_ULTIMATE.start_main_~q~0#1_74| (+ .cse2 |c_ULTIMATE.start_main_~q~0#1|)))) (< |c_ULTIMATE.start_main_~p~0#1| 0)) (forall ((|v_ULTIMATE.start_main_~q~0#1_74| Int)) (or (< |v_ULTIMATE.start_main_~q~0#1_74| (+ .cse2 1 |c_ULTIMATE.start_main_~q~0#1|)) (< 0 (+ 9223372036854775809 (* |v_ULTIMATE.start_main_~q~0#1_74| .cse1))))))) (and (= .cse0 0) (= (mod |c_ULTIMATE.start_main_~d~0#1| 2) 0)) (not (= |c_ULTIMATE.start_main_~d~0#1| (* |c_ULTIMATE.start_main_~p~0#1| .cse1))))) is different from true [2024-11-14 03:54:06,595 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:54:06,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338076909] [2024-11-14 03:54:06,595 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:54:06,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1886666239] [2024-11-14 03:54:06,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1886666239] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:54:06,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2061000] [2024-11-14 03:54:06,596 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-14 03:54:06,597 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:54:06,597 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:54:06,597 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:54:06,597 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:54:07,775 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 03:54:07,884 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 03:54:08,861 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2024-11-14 03:54:08,865 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:54:17,778 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '25604#(and (exists ((|v_ULTIMATE.start_main_~B~0#1_45| Int) (|v_ULTIMATE.start_main_~q~0#1_78| Int) (v_~counter~0_114 Int)) (and (<= 1 |#StackHeapBarrier|) (= ~counter~0 (+ v_~counter~0_114 1)) (<= 0 |ULTIMATE.start_main_~r~0#1|) (<= 2 v_~counter~0_114) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_78| 9223372036854775808)) (<= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) 9223372036854775807) (<= (+ 9223372036854775809 (* |v_ULTIMATE.start_main_~q~0#1_78| (mod |v_ULTIMATE.start_main_~B~0#1_45| 4294967296))) 0) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807))) (<= ~counter~0 100))' at error location [2024-11-14 03:54:17,778 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:54:17,778 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:54:17,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-14 03:54:17,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169808215] [2024-11-14 03:54:17,779 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 03:54:17,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-14 03:54:17,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:54:17,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-14 03:54:17,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=281, Invalid=1790, Unknown=3, NotChecked=88, Total=2162 [2024-11-14 03:54:17,780 INFO L87 Difference]: Start difference. First operand 423 states and 549 transitions. Second operand has 10 states, 8 states have (on average 6.125) internal successors, (49), 10 states have internal predecessors, (49), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-14 03:54:19,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:54:21,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 03:54:23,997 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 03:54:26,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 03:54:30,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:54:38,279 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:54:47,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:54:47,507 INFO L93 Difference]: Finished difference Result 586 states and 789 transitions. [2024-11-14 03:54:47,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-14 03:54:47,508 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 6.125) internal successors, (49), 10 states have internal predecessors, (49), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 88 [2024-11-14 03:54:47,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:54:47,515 INFO L225 Difference]: With dead ends: 586 [2024-11-14 03:54:47,515 INFO L226 Difference]: Without dead ends: 585 [2024-11-14 03:54:47,516 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 140 SyntacticMatches, 6 SemanticMatches, 52 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1095 ImplicationChecksByTransitivity, 33.1s TimeCoverageRelationStatistics Valid=371, Invalid=2382, Unknown=7, NotChecked=102, Total=2862 [2024-11-14 03:54:47,517 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 163 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 30 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:54:47,517 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 203 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 260 Invalid, 5 Unknown, 0 Unchecked, 13.2s Time] [2024-11-14 03:54:47,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2024-11-14 03:54:47,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 546. [2024-11-14 03:54:47,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 465 states have (on average 1.3397849462365592) internal successors, (623), 480 states have internal predecessors, (623), 55 states have call successors, (55), 10 states have call predecessors, (55), 10 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2024-11-14 03:54:47,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 733 transitions. [2024-11-14 03:54:47,605 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 733 transitions. Word has length 88 [2024-11-14 03:54:47,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:54:47,606 INFO L471 AbstractCegarLoop]: Abstraction has 546 states and 733 transitions. [2024-11-14 03:54:47,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 6.125) internal successors, (49), 10 states have internal predecessors, (49), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-14 03:54:47,606 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 733 transitions. [2024-11-14 03:54:47,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-14 03:54:47,607 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:54:47,607 INFO L215 NwaCegarLoop]: trace histogram [11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1] [2024-11-14 03:54:47,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-14 03:54:47,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:54:47,808 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 03:54:47,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:54:47,809 INFO L85 PathProgramCache]: Analyzing trace with hash 569191630, now seen corresponding path program 2 times [2024-11-14 03:54:47,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:54:47,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568642602] [2024-11-14 03:54:47,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:54:47,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:54:47,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:54:47,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1066610211] [2024-11-14 03:54:47,844 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:54:47,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:54:47,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:54:47,847 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:54:47,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-14 03:54:47,916 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-14 03:54:47,917 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:54:47,918 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-14 03:54:47,920 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:55:04,885 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 32 proven. 6 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-14 03:55:04,885 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:55:07,089 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:55:07,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568642602] [2024-11-14 03:55:07,090 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:55:07,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1066610211] [2024-11-14 03:55:07,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1066610211] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:55:07,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [762354968] [2024-11-14 03:55:07,091 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-14 03:55:07,091 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:55:07,092 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:55:07,092 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:55:07,092 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:55:08,206 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 03:55:08,290 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 03:55:09,269 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2024-11-14 03:55:09,273 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:55:19,920 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '27326#(and (exists ((v_~counter~0_124 Int) (|v_ULTIMATE.start_main_~B~0#1_48| Int) (|v_ULTIMATE.start_main_~q~0#1_84| Int)) (and (<= |v_ULTIMATE.start_main_~q~0#1_84| 9223372036854775807) (<= 1 |#StackHeapBarrier|) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_84| (mod |v_ULTIMATE.start_main_~B~0#1_48| 4294967296))) (<= 0 |ULTIMATE.start_main_~r~0#1|) (= ~counter~0 (+ v_~counter~0_124 1)) (<= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) 9223372036854775807) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807) (<= 3 ~counter~0))) (<= ~counter~0 100))' at error location [2024-11-14 03:55:19,920 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:55:19,921 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:55:19,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-14 03:55:19,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929690684] [2024-11-14 03:55:19,921 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 03:55:19,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 03:55:19,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:55:19,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 03:55:19,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=350, Invalid=2002, Unknown=0, NotChecked=0, Total=2352 [2024-11-14 03:55:19,922 INFO L87 Difference]: Start difference. First operand 546 states and 733 transitions. Second operand has 11 states, 9 states have (on average 5.555555555555555) internal successors, (50), 11 states have internal predecessors, (50), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-14 03:55:22,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 03:55:24,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 03:55:26,315 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 03:55:28,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 03:55:34,443 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 03:55:39,341 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 03:55:41,349 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 03:55:43,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 03:55:45,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 03:55:47,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 03:55:49,378 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 03:55:51,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 03:55:51,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:55:51,967 INFO L93 Difference]: Finished difference Result 597 states and 792 transitions. [2024-11-14 03:55:51,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-14 03:55:51,967 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 5.555555555555555) internal successors, (50), 11 states have internal predecessors, (50), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 89 [2024-11-14 03:55:51,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:55:51,970 INFO L225 Difference]: With dead ends: 597 [2024-11-14 03:55:51,970 INFO L226 Difference]: Without dead ends: 596 [2024-11-14 03:55:51,972 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 141 SyntacticMatches, 6 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1251 ImplicationChecksByTransitivity, 24.6s TimeCoverageRelationStatistics Valid=435, Invalid=2534, Unknown=1, NotChecked=0, Total=2970 [2024-11-14 03:55:51,972 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 110 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 21 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:55:51,972 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 219 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 460 Invalid, 12 Unknown, 0 Unchecked, 25.7s Time] [2024-11-14 03:55:51,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2024-11-14 03:55:52,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 546. [2024-11-14 03:55:52,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 465 states have (on average 1.3268817204301075) internal successors, (617), 480 states have internal predecessors, (617), 55 states have call successors, (55), 10 states have call predecessors, (55), 10 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2024-11-14 03:55:52,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 727 transitions. [2024-11-14 03:55:52,068 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 727 transitions. Word has length 89 [2024-11-14 03:55:52,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:55:52,068 INFO L471 AbstractCegarLoop]: Abstraction has 546 states and 727 transitions. [2024-11-14 03:55:52,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 5.555555555555555) internal successors, (50), 11 states have internal predecessors, (50), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-14 03:55:52,069 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 727 transitions. [2024-11-14 03:55:52,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-14 03:55:52,070 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:55:52,070 INFO L215 NwaCegarLoop]: trace histogram [12, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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] [2024-11-14 03:55:52,092 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-14 03:55:52,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:55:52,276 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 03:55:52,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:55:52,276 INFO L85 PathProgramCache]: Analyzing trace with hash 2004237768, now seen corresponding path program 1 times [2024-11-14 03:55:52,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:55:52,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226208394] [2024-11-14 03:55:52,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:55:52,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:55:52,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:55:52,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [527390445] [2024-11-14 03:55:52,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:55:52,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:55:52,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:55:52,321 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:55:52,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-14 03:55:52,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:55:52,395 INFO L255 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 03:55:52,396 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:55:52,740 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2024-11-14 03:55:52,740 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:55:52,896 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:55:52,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226208394] [2024-11-14 03:55:52,896 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:55:52,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [527390445] [2024-11-14 03:55:52,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [527390445] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:55:52,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1193584286] [2024-11-14 03:55:52,898 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-14 03:55:52,898 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:55:52,898 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:55:52,898 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:55:52,898 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:55:53,917 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 03:55:54,014 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 03:55:54,762 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2024-11-14 03:55:54,766 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:56:01,384 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '29097#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~p~0#1_160| Int) (|v_ULTIMATE.start_main_~B~0#1_49| Int)) (and (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~p~0#1_160| (mod |v_ULTIMATE.start_main_~B~0#1_49| 4294967296))) (= (+ (* |ULTIMATE.start_main_~q~0#1| (mod |v_ULTIMATE.start_main_~B~0#1_49| 4294967296)) |ULTIMATE.start_main_~r~0#1|) (mod |ULTIMATE.start_main_~A~0#1| 4294967296)))) (<= 0 |ULTIMATE.start_main_~r~0#1|) (<= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) 9223372036854775807) (<= ~counter~0 100) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807) (<= 3 ~counter~0))' at error location [2024-11-14 03:56:01,384 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:56:01,384 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:56:01,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-14 03:56:01,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232192877] [2024-11-14 03:56:01,385 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 03:56:01,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 03:56:01,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:56:01,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 03:56:01,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=237, Invalid=1323, Unknown=0, NotChecked=0, Total=1560 [2024-11-14 03:56:01,386 INFO L87 Difference]: Start difference. First operand 546 states and 727 transitions. Second operand has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-14 03:56:01,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:56:01,613 INFO L93 Difference]: Finished difference Result 730 states and 956 transitions. [2024-11-14 03:56:01,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:56:01,614 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 96 [2024-11-14 03:56:01,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:56:01,616 INFO L225 Difference]: With dead ends: 730 [2024-11-14 03:56:01,616 INFO L226 Difference]: Without dead ends: 611 [2024-11-14 03:56:01,617 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 171 SyntacticMatches, 6 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 579 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=237, Invalid=1323, Unknown=0, NotChecked=0, Total=1560 [2024-11-14 03:56:01,618 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 64 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:56:01,618 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 238 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:56:01,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2024-11-14 03:56:01,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 602. [2024-11-14 03:56:01,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 517 states have (on average 1.3075435203094778) internal successors, (676), 532 states have internal predecessors, (676), 59 states have call successors, (59), 10 states have call predecessors, (59), 10 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-14 03:56:01,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 794 transitions. [2024-11-14 03:56:01,727 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 794 transitions. Word has length 96 [2024-11-14 03:56:01,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:56:01,727 INFO L471 AbstractCegarLoop]: Abstraction has 602 states and 794 transitions. [2024-11-14 03:56:01,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-14 03:56:01,728 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 794 transitions. [2024-11-14 03:56:01,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-14 03:56:01,729 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:56:01,729 INFO L215 NwaCegarLoop]: trace histogram [15, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1] [2024-11-14 03:56:01,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-11-14 03:56:01,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:56:01,930 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 03:56:01,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:56:01,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1037264175, now seen corresponding path program 2 times [2024-11-14 03:56:01,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:56:01,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051911304] [2024-11-14 03:56:01,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:56:01,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:56:01,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:56:02,076 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2024-11-14 03:56:02,076 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:56:02,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051911304] [2024-11-14 03:56:02,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051911304] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:56:02,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [524616364] [2024-11-14 03:56:02,076 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:56:02,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:56:02,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:56:02,079 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:56:02,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-14 03:56:02,134 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-14 03:56:02,134 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:56:02,135 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 03:56:02,137 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:56:02,493 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 14 proven. 20 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-11-14 03:56:02,494 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:56:02,848 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 14 proven. 20 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-11-14 03:56:02,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [524616364] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:56:02,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1192466884] [2024-11-14 03:56:02,849 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2024-11-14 03:56:02,849 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:56:02,849 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:56:02,850 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:56:02,850 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:56:03,586 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 03:56:03,587 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:56:07,907 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '31319#(and (<= 1 |#StackHeapBarrier|) (<= 1 ~counter~0) (exists ((|v_ULTIMATE.start_main_~p~0#1_171| Int)) (and (<= (* |v_ULTIMATE.start_main_~p~0#1_171| (mod |ULTIMATE.start_main_~B~0#1| 4294967296)) |ULTIMATE.start_main_~r~0#1|) (<= 4611686018427387904 |v_ULTIMATE.start_main_~p~0#1_171|) (= (* 2 (* |v_ULTIMATE.start_main_~p~0#1_171| (mod |ULTIMATE.start_main_~B~0#1| 4294967296))) |ULTIMATE.start_main_~d~0#1|))) (= |ULTIMATE.start_main_~q~0#1| 0) (= |ULTIMATE.start_main_~r~0#1| (mod |ULTIMATE.start_main_~A~0#1| 4294967296)))' at error location [2024-11-14 03:56:07,907 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:56:07,907 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:56:07,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 12 [2024-11-14 03:56:07,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092184794] [2024-11-14 03:56:07,907 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:56:07,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-14 03:56:07,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:56:07,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-14 03:56:07,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=572, Unknown=0, NotChecked=0, Total=702 [2024-11-14 03:56:07,909 INFO L87 Difference]: Start difference. First operand 602 states and 794 transitions. Second operand has 13 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 13 states have internal predecessors, (80), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (20), 8 states have call predecessors, (20), 6 states have call successors, (20) [2024-11-14 03:56:09,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:56:09,589 INFO L93 Difference]: Finished difference Result 1434 states and 1967 transitions. [2024-11-14 03:56:09,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-14 03:56:09,589 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 13 states have internal predecessors, (80), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (20), 8 states have call predecessors, (20), 6 states have call successors, (20) Word has length 101 [2024-11-14 03:56:09,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:56:09,595 INFO L225 Difference]: With dead ends: 1434 [2024-11-14 03:56:09,595 INFO L226 Difference]: Without dead ends: 1430 [2024-11-14 03:56:09,596 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 276 SyntacticMatches, 7 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 470 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=300, Invalid=1260, Unknown=0, NotChecked=0, Total=1560 [2024-11-14 03:56:09,597 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 537 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 539 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:56:09,598 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [539 Valid, 252 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-14 03:56:09,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1430 states. [2024-11-14 03:56:09,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1430 to 1141. [2024-11-14 03:56:09,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1141 states, 1005 states have (on average 1.317412935323383) internal successors, (1324), 1019 states have internal predecessors, (1324), 111 states have call successors, (111), 10 states have call predecessors, (111), 10 states have return successors, (111), 111 states have call predecessors, (111), 111 states have call successors, (111) [2024-11-14 03:56:09,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1141 states to 1141 states and 1546 transitions. [2024-11-14 03:56:09,811 INFO L78 Accepts]: Start accepts. Automaton has 1141 states and 1546 transitions. Word has length 101 [2024-11-14 03:56:09,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:56:09,812 INFO L471 AbstractCegarLoop]: Abstraction has 1141 states and 1546 transitions. [2024-11-14 03:56:09,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 13 states have internal predecessors, (80), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (20), 8 states have call predecessors, (20), 6 states have call successors, (20) [2024-11-14 03:56:09,812 INFO L276 IsEmpty]: Start isEmpty. Operand 1141 states and 1546 transitions. [2024-11-14 03:56:09,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-14 03:56:09,813 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:56:09,813 INFO L215 NwaCegarLoop]: trace histogram [13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-14 03:56:09,835 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-11-14 03:56:10,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-11-14 03:56:10,014 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 03:56:10,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:56:10,015 INFO L85 PathProgramCache]: Analyzing trace with hash -457717349, now seen corresponding path program 1 times [2024-11-14 03:56:10,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:56:10,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528456044] [2024-11-14 03:56:10,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:56:10,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:56:10,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:56:10,310 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-14 03:56:10,311 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:56:10,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528456044] [2024-11-14 03:56:10,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528456044] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:56:10,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1377783527] [2024-11-14 03:56:10,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:56:10,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:56:10,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:56:10,313 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:56:10,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-14 03:56:10,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:56:10,375 INFO L255 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 03:56:10,377 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:56:10,756 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 34 proven. 20 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-14 03:56:10,757 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:56:12,647 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-14 03:56:12,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1377783527] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:56:12,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1843797426] [2024-11-14 03:56:12,648 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-14 03:56:12,648 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:56:12,648 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:56:12,649 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:56:12,649 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:56:13,895 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 03:56:13,981 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 03:56:14,731 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2024-11-14 03:56:14,734 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:56:36,943 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '35023#(and (<= 2 ~counter~0) (<= 1 |#StackHeapBarrier|) (<= ~counter~0 100))' at error location [2024-11-14 03:56:36,943 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:56:36,943 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:56:36,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 18 [2024-11-14 03:56:36,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67063620] [2024-11-14 03:56:36,944 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:56:36,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-14 03:56:36,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:56:36,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-14 03:56:36,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=279, Invalid=2270, Unknown=1, NotChecked=0, Total=2550 [2024-11-14 03:56:36,946 INFO L87 Difference]: Start difference. First operand 1141 states and 1546 transitions. Second operand has 19 states, 18 states have (on average 10.444444444444445) internal successors, (188), 19 states have internal predecessors, (188), 11 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 11 states have call predecessors, (33), 11 states have call successors, (33) [2024-11-14 03:56:40,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:56:40,178 INFO L93 Difference]: Finished difference Result 2297 states and 3226 transitions. [2024-11-14 03:56:40,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-14 03:56:40,178 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 10.444444444444445) internal successors, (188), 19 states have internal predecessors, (188), 11 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 11 states have call predecessors, (33), 11 states have call successors, (33) Word has length 107 [2024-11-14 03:56:40,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:56:40,183 INFO L225 Difference]: With dead ends: 2297 [2024-11-14 03:56:40,184 INFO L226 Difference]: Without dead ends: 2295 [2024-11-14 03:56:40,185 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 270 SyntacticMatches, 8 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1821 ImplicationChecksByTransitivity, 23.6s TimeCoverageRelationStatistics Valid=650, Invalid=4319, Unknown=1, NotChecked=0, Total=4970 [2024-11-14 03:56:40,186 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 1304 mSDsluCounter, 857 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1306 SdHoareTripleChecker+Valid, 957 SdHoareTripleChecker+Invalid, 963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-14 03:56:40,186 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1306 Valid, 957 Invalid, 963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 805 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-14 03:56:40,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2295 states. [2024-11-14 03:56:40,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2295 to 1578. [2024-11-14 03:56:40,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1388 states have (on average 1.335014409221902) internal successors, (1853), 1402 states have internal predecessors, (1853), 165 states have call successors, (165), 10 states have call predecessors, (165), 10 states have return successors, (165), 165 states have call predecessors, (165), 165 states have call successors, (165) [2024-11-14 03:56:40,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 2183 transitions. [2024-11-14 03:56:40,400 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 2183 transitions. Word has length 107 [2024-11-14 03:56:40,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:56:40,401 INFO L471 AbstractCegarLoop]: Abstraction has 1578 states and 2183 transitions. [2024-11-14 03:56:40,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 10.444444444444445) internal successors, (188), 19 states have internal predecessors, (188), 11 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 11 states have call predecessors, (33), 11 states have call successors, (33) [2024-11-14 03:56:40,401 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 2183 transitions. [2024-11-14 03:56:40,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-14 03:56:40,402 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:56:40,403 INFO L215 NwaCegarLoop]: trace histogram [13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-14 03:56:40,425 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-14 03:56:40,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-11-14 03:56:40,603 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 03:56:40,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:56:40,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1304335808, now seen corresponding path program 1 times [2024-11-14 03:56:40,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:56:40,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100634240] [2024-11-14 03:56:40,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:56:40,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:56:40,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:56:40,935 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 21 proven. 21 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2024-11-14 03:56:40,936 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:56:40,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100634240] [2024-11-14 03:56:40,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100634240] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:56:40,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1543237773] [2024-11-14 03:56:40,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:56:40,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:56:40,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:56:40,939 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:56:40,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-14 03:56:41,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:56:41,016 INFO L255 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 03:56:41,020 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:56:41,442 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 34 proven. 21 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-14 03:56:41,442 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:56:44,803 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-14 03:56:44,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1543237773] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:56:44,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [124322060] [2024-11-14 03:56:44,804 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-14 03:56:44,804 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:56:44,804 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:56:44,804 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:56:44,805 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:56:45,986 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 03:56:46,078 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 03:56:46,886 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2024-11-14 03:56:46,890 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:56:54,212 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '40278#(and (<= 2 ~counter~0) (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~r~0#1|) (<= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) 9223372036854775807) (<= ~counter~0 100) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807))' at error location [2024-11-14 03:56:54,212 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:56:54,212 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:56:54,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 8] total 20 [2024-11-14 03:56:54,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233137279] [2024-11-14 03:56:54,212 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:56:54,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-14 03:56:54,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:56:54,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-14 03:56:54,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=367, Invalid=2285, Unknown=0, NotChecked=0, Total=2652 [2024-11-14 03:56:54,214 INFO L87 Difference]: Start difference. First operand 1578 states and 2183 transitions. Second operand has 21 states, 20 states have (on average 9.95) internal successors, (199), 21 states have internal predecessors, (199), 11 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 11 states have call predecessors, (36), 11 states have call successors, (36) [2024-11-14 03:56:54,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:56:54,920 INFO L93 Difference]: Finished difference Result 1950 states and 2753 transitions. [2024-11-14 03:56:54,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 03:56:54,921 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 9.95) internal successors, (199), 21 states have internal predecessors, (199), 11 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 11 states have call predecessors, (36), 11 states have call successors, (36) Word has length 108 [2024-11-14 03:56:54,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:56:54,926 INFO L225 Difference]: With dead ends: 1950 [2024-11-14 03:56:54,926 INFO L226 Difference]: Without dead ends: 1940 [2024-11-14 03:56:54,928 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 274 SyntacticMatches, 7 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1615 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=440, Invalid=2640, Unknown=0, NotChecked=0, Total=3080 [2024-11-14 03:56:54,928 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 438 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:56:54,929 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [442 Valid, 326 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 03:56:54,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1940 states. [2024-11-14 03:56:55,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1940 to 1468. [2024-11-14 03:56:55,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1468 states, 1292 states have (on average 1.2763157894736843) internal successors, (1649), 1304 states have internal predecessors, (1649), 153 states have call successors, (153), 10 states have call predecessors, (153), 10 states have return successors, (153), 153 states have call predecessors, (153), 153 states have call successors, (153) [2024-11-14 03:56:55,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1468 states to 1468 states and 1955 transitions. [2024-11-14 03:56:55,110 INFO L78 Accepts]: Start accepts. Automaton has 1468 states and 1955 transitions. Word has length 108 [2024-11-14 03:56:55,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:56:55,110 INFO L471 AbstractCegarLoop]: Abstraction has 1468 states and 1955 transitions. [2024-11-14 03:56:55,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 9.95) internal successors, (199), 21 states have internal predecessors, (199), 11 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 11 states have call predecessors, (36), 11 states have call successors, (36) [2024-11-14 03:56:55,110 INFO L276 IsEmpty]: Start isEmpty. Operand 1468 states and 1955 transitions. [2024-11-14 03:56:55,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-14 03:56:55,111 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:56:55,111 INFO L215 NwaCegarLoop]: trace histogram [13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2024-11-14 03:56:55,126 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-14 03:56:55,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:56:55,315 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 03:56:55,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:56:55,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1779704259, now seen corresponding path program 1 times [2024-11-14 03:56:55,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:56:55,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876202515] [2024-11-14 03:56:55,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:56:55,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:56:55,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:56:55,655 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-14 03:56:55,655 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:56:55,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876202515] [2024-11-14 03:56:55,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876202515] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:56:55,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [844059070] [2024-11-14 03:56:55,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:56:55,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:56:55,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:56:55,659 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:56:55,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-14 03:56:55,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:56:55,736 INFO L255 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-14 03:56:55,738 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:56:56,215 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-14 03:56:56,215 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:56:58,178 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-14 03:56:58,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [844059070] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:56:58,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [42489972] [2024-11-14 03:56:58,179 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-14 03:56:58,180 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:56:58,180 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:56:58,180 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:56:58,180 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:56:59,299 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 03:56:59,387 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 03:57:00,340 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2024-11-14 03:57:00,344 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:57:16,543 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '44978#(and (<= 2 ~counter~0) (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~r~0#1|) (<= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) 9223372036854775807) (<= ~counter~0 100) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807))' at error location [2024-11-14 03:57:16,543 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:57:16,543 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:57:16,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 21 [2024-11-14 03:57:16,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157121577] [2024-11-14 03:57:16,544 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:57:16,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-14 03:57:16,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:57:16,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-14 03:57:16,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=361, Invalid=2393, Unknown=2, NotChecked=0, Total=2756 [2024-11-14 03:57:16,545 INFO L87 Difference]: Start difference. First operand 1468 states and 1955 transitions. Second operand has 22 states, 21 states have (on average 10.047619047619047) internal successors, (211), 22 states have internal predecessors, (211), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2024-11-14 03:57:18,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:57:18,164 INFO L93 Difference]: Finished difference Result 1565 states and 2076 transitions. [2024-11-14 03:57:18,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-14 03:57:18,165 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 10.047619047619047) internal successors, (211), 22 states have internal predecessors, (211), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) Word has length 109 [2024-11-14 03:57:18,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:57:18,168 INFO L225 Difference]: With dead ends: 1565 [2024-11-14 03:57:18,168 INFO L226 Difference]: Without dead ends: 1564 [2024-11-14 03:57:18,169 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 276 SyntacticMatches, 7 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1863 ImplicationChecksByTransitivity, 17.1s TimeCoverageRelationStatistics Valid=550, Invalid=3230, Unknown=2, NotChecked=0, Total=3782 [2024-11-14 03:57:18,169 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 315 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 03:57:18,169 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 661 Invalid, 712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 03:57:18,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1564 states. [2024-11-14 03:57:18,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1564 to 1500. [2024-11-14 03:57:18,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1500 states, 1320 states have (on average 1.2704545454545455) internal successors, (1677), 1332 states have internal predecessors, (1677), 157 states have call successors, (157), 10 states have call predecessors, (157), 10 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2024-11-14 03:57:18,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1500 states to 1500 states and 1991 transitions. [2024-11-14 03:57:18,369 INFO L78 Accepts]: Start accepts. Automaton has 1500 states and 1991 transitions. Word has length 109 [2024-11-14 03:57:18,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:57:18,370 INFO L471 AbstractCegarLoop]: Abstraction has 1500 states and 1991 transitions. [2024-11-14 03:57:18,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 10.047619047619047) internal successors, (211), 22 states have internal predecessors, (211), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2024-11-14 03:57:18,370 INFO L276 IsEmpty]: Start isEmpty. Operand 1500 states and 1991 transitions. [2024-11-14 03:57:18,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-14 03:57:18,370 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:57:18,371 INFO L215 NwaCegarLoop]: trace histogram [13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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] [2024-11-14 03:57:18,386 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-11-14 03:57:18,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-14 03:57:18,571 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 03:57:18,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:57:18,571 INFO L85 PathProgramCache]: Analyzing trace with hash 910908029, now seen corresponding path program 1 times [2024-11-14 03:57:18,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:57:18,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872670297] [2024-11-14 03:57:18,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:57:18,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:57:18,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:57:18,894 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-14 03:57:18,895 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:57:18,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872670297] [2024-11-14 03:57:18,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872670297] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:57:18,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223664196] [2024-11-14 03:57:18,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:57:18,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:57:18,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:57:18,900 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:57:18,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-14 03:57:18,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:57:18,977 INFO L255 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-14 03:57:18,979 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:57:19,204 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 194 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-14 03:57:19,204 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:57:19,640 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-14 03:57:19,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [223664196] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:57:19,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1649366413] [2024-11-14 03:57:19,642 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-14 03:57:19,643 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:57:19,643 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:57:19,643 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:57:19,644 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:57:21,697 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2024-11-14 03:57:21,701 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:57:27,663 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '49293#(exists ((|v_ULTIMATE.start_main_~d~0#1_231| Int) (|v_ULTIMATE.start_main_~q~0#1_111| Int) (v_~counter~0_203 Int)) (and (<= 1 |#StackHeapBarrier|) (<= (+ 9223372036854775809 (* |v_ULTIMATE.start_main_~q~0#1_111| |v_ULTIMATE.start_main_~d~0#1_231|)) 0) (= ~counter~0 101) (= v_~counter~0_203 100) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807)))' at error location [2024-11-14 03:57:27,663 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:57:27,664 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:57:27,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 14] total 29 [2024-11-14 03:57:27,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388285788] [2024-11-14 03:57:27,664 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:57:27,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-14 03:57:27,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:57:27,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-14 03:57:27,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=394, Invalid=3388, Unknown=0, NotChecked=0, Total=3782 [2024-11-14 03:57:27,665 INFO L87 Difference]: Start difference. First operand 1500 states and 1991 transitions. Second operand has 29 states, 29 states have (on average 5.241379310344827) internal successors, (152), 29 states have internal predecessors, (152), 10 states have call successors, (39), 6 states have call predecessors, (39), 6 states have return successors, (39), 10 states have call predecessors, (39), 10 states have call successors, (39) [2024-11-14 03:57:28,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:57:28,711 INFO L93 Difference]: Finished difference Result 1559 states and 2033 transitions. [2024-11-14 03:57:28,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-14 03:57:28,712 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 5.241379310344827) internal successors, (152), 29 states have internal predecessors, (152), 10 states have call successors, (39), 6 states have call predecessors, (39), 6 states have return successors, (39), 10 states have call predecessors, (39), 10 states have call successors, (39) Word has length 110 [2024-11-14 03:57:28,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:57:28,715 INFO L225 Difference]: With dead ends: 1559 [2024-11-14 03:57:28,715 INFO L226 Difference]: Without dead ends: 1003 [2024-11-14 03:57:28,716 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 275 SyntacticMatches, 8 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3224 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=818, Invalid=6492, Unknown=0, NotChecked=0, Total=7310 [2024-11-14 03:57:28,716 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 155 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:57:28,717 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 588 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 03:57:28,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2024-11-14 03:57:28,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 992. [2024-11-14 03:57:28,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 992 states, 862 states have (on average 1.2331786542923433) internal successors, (1063), 874 states have internal predecessors, (1063), 101 states have call successors, (101), 16 states have call predecessors, (101), 16 states have return successors, (101), 101 states have call predecessors, (101), 101 states have call successors, (101) [2024-11-14 03:57:28,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1265 transitions. [2024-11-14 03:57:28,878 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1265 transitions. Word has length 110 [2024-11-14 03:57:28,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:57:28,878 INFO L471 AbstractCegarLoop]: Abstraction has 992 states and 1265 transitions. [2024-11-14 03:57:28,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 5.241379310344827) internal successors, (152), 29 states have internal predecessors, (152), 10 states have call successors, (39), 6 states have call predecessors, (39), 6 states have return successors, (39), 10 states have call predecessors, (39), 10 states have call successors, (39) [2024-11-14 03:57:28,879 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1265 transitions. [2024-11-14 03:57:28,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-14 03:57:28,880 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:57:28,880 INFO L215 NwaCegarLoop]: trace histogram [13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-11-14 03:57:28,900 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-14 03:57:29,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:57:29,080 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 03:57:29,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:57:29,081 INFO L85 PathProgramCache]: Analyzing trace with hash 93416806, now seen corresponding path program 3 times [2024-11-14 03:57:29,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:57:29,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632299850] [2024-11-14 03:57:29,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:57:29,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:57:29,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:57:29,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [494715693] [2024-11-14 03:57:29,127 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 03:57:29,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:57:29,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:57:29,133 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:57:29,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-14 03:57:29,210 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 03:57:29,210 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:57:29,211 INFO L255 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-14 03:57:29,214 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:57:29,994 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-14 03:57:29,995 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:57:30,312 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:57:30,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632299850] [2024-11-14 03:57:30,312 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:57:30,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [494715693] [2024-11-14 03:57:30,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [494715693] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:57:30,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [527753954] [2024-11-14 03:57:30,313 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-14 03:57:30,313 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:57:30,313 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:57:30,313 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:57:30,314 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:57:31,380 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 03:57:31,472 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 03:57:32,201 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2024-11-14 03:57:32,205 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:57:45,984 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '52793#(and (exists ((|v_ULTIMATE.start_main_~q~0#1_118| Int) (|v_ULTIMATE.start_main_~B~0#1_52| Int) (v_~counter~0_213 Int)) (and (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~r~0#1|) (<= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) 9223372036854775807) (<= |v_ULTIMATE.start_main_~q~0#1_118| 9223372036854775807) (= ~counter~0 (+ v_~counter~0_213 1)) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_118| (mod |v_ULTIMATE.start_main_~B~0#1_52| 4294967296))) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807) (<= 3 ~counter~0))) (<= ~counter~0 100))' at error location [2024-11-14 03:57:45,984 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:57:45,984 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:57:45,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-14 03:57:45,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790080393] [2024-11-14 03:57:45,984 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 03:57:45,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 03:57:45,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:57:45,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 03:57:45,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=269, Invalid=1537, Unknown=0, NotChecked=0, Total=1806 [2024-11-14 03:57:45,986 INFO L87 Difference]: Start difference. First operand 992 states and 1265 transitions. Second operand has 8 states, 7 states have (on average 11.0) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-14 03:57:46,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:57:46,349 INFO L93 Difference]: Finished difference Result 996 states and 1265 transitions. [2024-11-14 03:57:46,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 03:57:46,349 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 115 [2024-11-14 03:57:46,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:57:46,351 INFO L225 Difference]: With dead ends: 996 [2024-11-14 03:57:46,352 INFO L226 Difference]: Without dead ends: 995 [2024-11-14 03:57:46,352 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 197 SyntacticMatches, 8 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 750 ImplicationChecksByTransitivity, 13.9s TimeCoverageRelationStatistics Valid=269, Invalid=1537, Unknown=0, NotChecked=0, Total=1806 [2024-11-14 03:57:46,352 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 36 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:57:46,353 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 323 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:57:46,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 995 states. [2024-11-14 03:57:46,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 995 to 992. [2024-11-14 03:57:46,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 992 states, 862 states have (on average 1.2320185614849188) internal successors, (1062), 874 states have internal predecessors, (1062), 101 states have call successors, (101), 16 states have call predecessors, (101), 16 states have return successors, (101), 101 states have call predecessors, (101), 101 states have call successors, (101) [2024-11-14 03:57:46,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1264 transitions. [2024-11-14 03:57:46,482 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1264 transitions. Word has length 115 [2024-11-14 03:57:46,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:57:46,482 INFO L471 AbstractCegarLoop]: Abstraction has 992 states and 1264 transitions. [2024-11-14 03:57:46,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-14 03:57:46,482 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1264 transitions. [2024-11-14 03:57:46,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-14 03:57:46,483 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:57:46,483 INFO L215 NwaCegarLoop]: trace histogram [13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-11-14 03:57:46,497 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-11-14 03:57:46,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-14 03:57:46,684 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 03:57:46,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:57:46,684 INFO L85 PathProgramCache]: Analyzing trace with hash -420759672, now seen corresponding path program 2 times [2024-11-14 03:57:46,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:57:46,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929991877] [2024-11-14 03:57:46,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:57:46,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:57:46,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:57:46,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1278064985] [2024-11-14 03:57:46,713 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:57:46,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:57:46,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:57:46,715 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:57:46,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-14 03:57:46,797 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-14 03:57:46,797 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:57:46,798 INFO L255 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-14 03:57:46,801 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:57:48,284 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-14 03:57:48,284 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:59:16,668 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-14 03:59:16,669 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:59:16,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929991877] [2024-11-14 03:59:16,669 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:59:16,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1278064985] [2024-11-14 03:59:16,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1278064985] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:59:16,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1187317516] [2024-11-14 03:59:16,670 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-14 03:59:16,670 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:59:16,670 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:59:16,670 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:59:16,671 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:59:17,689 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 03:59:17,774 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 03:59:18,679 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2024-11-14 03:59:18,684 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:59:53,171 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '55909#(and (exists ((|v_ULTIMATE.start_main_~B~0#1_53| Int) (v_~counter~0_228 Int) (|v_ULTIMATE.start_main_~q~0#1_126| Int) (|v_ULTIMATE.start_main_~r~0#1_107| Int)) (and (<= 1 |#StackHeapBarrier|) (<= (* (mod |v_ULTIMATE.start_main_~B~0#1_53| 4294967296) |v_ULTIMATE.start_main_~q~0#1_126|) 9223372036854775807) (<= (+ |ULTIMATE.start_main_~d~0#1| |v_ULTIMATE.start_main_~r~0#1_107|) 9223372036854775807) (<= 9223372036854775808 (+ (* (mod |v_ULTIMATE.start_main_~B~0#1_53| 4294967296) |v_ULTIMATE.start_main_~q~0#1_126|) |v_ULTIMATE.start_main_~r~0#1_107|)) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~d~0#1| |v_ULTIMATE.start_main_~r~0#1_107|)) (= ~counter~0 (+ v_~counter~0_228 1)) (<= |v_ULTIMATE.start_main_~r~0#1_107| 9223372036854775807) (<= 3 ~counter~0))) (<= ~counter~0 100))' at error location [2024-11-14 03:59:53,172 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:59:53,172 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:59:53,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2024-11-14 03:59:53,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586675549] [2024-11-14 03:59:53,172 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 03:59:53,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-14 03:59:53,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:59:53,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-14 03:59:53,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=380, Invalid=2921, Unknown=5, NotChecked=0, Total=3306 [2024-11-14 03:59:53,173 INFO L87 Difference]: Start difference. First operand 992 states and 1264 transitions. Second operand has 26 states, 25 states have (on average 6.28) internal successors, (157), 26 states have internal predecessors, (157), 8 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) [2024-11-14 04:00:01,976 WARN L286 SmtUtils]: Spent 8.30s on a formula simplification. DAG size of input: 190 DAG size of output: 71 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:00:09,874 WARN L286 SmtUtils]: Spent 5.27s on a formula simplification. DAG size of input: 154 DAG size of output: 74 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:00:11,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 04:00:13,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 04:00:14,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 04:00:24,258 WARN L286 SmtUtils]: Spent 8.89s on a formula simplification. DAG size of input: 136 DAG size of output: 111 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:00:28,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 04:00:32,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 04:00:48,576 WARN L286 SmtUtils]: Spent 15.31s on a formula simplification. DAG size of input: 194 DAG size of output: 76 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:00:50,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 04:00:57,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 04:01:05,026 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 04:01:15,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 04:01:17,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 04:01:19,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 04:01:21,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 04:01:25,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 04:01:27,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:01:27,745 INFO L93 Difference]: Finished difference Result 1013 states and 1290 transitions. [2024-11-14 04:01:27,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-14 04:01:27,746 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 6.28) internal successors, (157), 26 states have internal predecessors, (157), 8 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) Word has length 117 [2024-11-14 04:01:27,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:01:27,750 INFO L225 Difference]: With dead ends: 1013 [2024-11-14 04:01:27,750 INFO L226 Difference]: Without dead ends: 956 [2024-11-14 04:01:27,751 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 285 SyntacticMatches, 9 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1493 ImplicationChecksByTransitivity, 95.9s TimeCoverageRelationStatistics Valid=665, Invalid=4440, Unknown=7, NotChecked=0, Total=5112 [2024-11-14 04:01:27,752 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 263 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 1453 mSolverCounterSat, 64 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 1523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1453 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:01:27,752 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 650 Invalid, 1523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1453 Invalid, 6 Unknown, 0 Unchecked, 36.1s Time] [2024-11-14 04:01:27,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2024-11-14 04:01:27,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 940. [2024-11-14 04:01:27,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 940 states, 816 states have (on average 1.2450980392156863) internal successors, (1016), 828 states have internal predecessors, (1016), 97 states have call successors, (97), 14 states have call predecessors, (97), 14 states have return successors, (97), 97 states have call predecessors, (97), 97 states have call successors, (97) [2024-11-14 04:01:27,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1210 transitions. [2024-11-14 04:01:27,890 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1210 transitions. Word has length 117 [2024-11-14 04:01:27,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:01:27,890 INFO L471 AbstractCegarLoop]: Abstraction has 940 states and 1210 transitions. [2024-11-14 04:01:27,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 6.28) internal successors, (157), 26 states have internal predecessors, (157), 8 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) [2024-11-14 04:01:27,891 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1210 transitions. [2024-11-14 04:01:27,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-14 04:01:27,891 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:01:27,891 INFO L215 NwaCegarLoop]: trace histogram [17, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:01:27,904 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-14 04:01:28,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-14 04:01:28,092 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 04:01:28,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:01:28,092 INFO L85 PathProgramCache]: Analyzing trace with hash 98198318, now seen corresponding path program 3 times [2024-11-14 04:01:28,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:01:28,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48886448] [2024-11-14 04:01:28,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:01:28,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:01:28,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:01:28,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [620118686] [2024-11-14 04:01:28,133 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 04:01:28,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:01:28,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:01:28,135 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:01:28,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-14 04:01:28,220 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 04:01:28,220 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:01:28,222 INFO L255 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-14 04:01:28,225 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:01:30,077 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2024-11-14 04:01:30,078 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:01:34,719 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2024-11-14 04:01:34,719 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:01:34,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48886448] [2024-11-14 04:01:34,719 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:01:34,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [620118686] [2024-11-14 04:01:34,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [620118686] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:01:34,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [877299693] [2024-11-14 04:01:34,720 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-14 04:01:34,720 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:01:34,720 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:01:34,720 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:01:34,721 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:01:35,831 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 04:01:35,950 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 04:01:36,776 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2024-11-14 04:01:36,779 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:01:55,708 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '59098#(and (<= ~counter~0 100) (exists ((|v_ULTIMATE.start_main_~r~0#1_113| Int) (|v_ULTIMATE.start_main_~B~0#1_54| Int) (v_~counter~0_244 Int) (|v_ULTIMATE.start_main_~q~0#1_132| Int)) (and (<= 9223372036854775808 (+ (* |v_ULTIMATE.start_main_~q~0#1_132| (mod |v_ULTIMATE.start_main_~B~0#1_54| 4294967296)) |v_ULTIMATE.start_main_~r~0#1_113|)) (<= 1 |#StackHeapBarrier|) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~d~0#1| |v_ULTIMATE.start_main_~r~0#1_113|)) (= ~counter~0 (+ v_~counter~0_244 1)) (<= |v_ULTIMATE.start_main_~r~0#1_113| 9223372036854775807) (<= (* |v_ULTIMATE.start_main_~q~0#1_132| (mod |v_ULTIMATE.start_main_~B~0#1_54| 4294967296)) 9223372036854775807) (<= (+ |ULTIMATE.start_main_~d~0#1| |v_ULTIMATE.start_main_~r~0#1_113|) 9223372036854775807) (<= 3 ~counter~0))))' at error location [2024-11-14 04:01:55,709 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:01:55,709 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 04:01:55,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 29 [2024-11-14 04:01:55,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380606944] [2024-11-14 04:01:55,709 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 04:01:55,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-14 04:01:55,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:01:55,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-14 04:01:55,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=437, Invalid=3342, Unknown=3, NotChecked=0, Total=3782 [2024-11-14 04:01:55,711 INFO L87 Difference]: Start difference. First operand 940 states and 1210 transitions. Second operand has 30 states, 29 states have (on average 5.551724137931035) internal successors, (161), 30 states have internal predecessors, (161), 12 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 12 states have call predecessors, (34), 12 states have call successors, (34) [2024-11-14 04:02:20,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:02:20,883 INFO L93 Difference]: Finished difference Result 1166 states and 1486 transitions. [2024-11-14 04:02:20,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-14 04:02:20,884 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 5.551724137931035) internal successors, (161), 30 states have internal predecessors, (161), 12 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 12 states have call predecessors, (34), 12 states have call successors, (34) Word has length 131 [2024-11-14 04:02:20,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:02:20,888 INFO L225 Difference]: With dead ends: 1166 [2024-11-14 04:02:20,888 INFO L226 Difference]: Without dead ends: 1165 [2024-11-14 04:02:20,890 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 323 SyntacticMatches, 8 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2595 ImplicationChecksByTransitivity, 36.8s TimeCoverageRelationStatistics Valid=1168, Invalid=7759, Unknown=3, NotChecked=0, Total=8930 [2024-11-14 04:02:20,891 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 913 mSDsluCounter, 965 mSDsCounter, 0 mSdLazyCounter, 2490 mSolverCounterSat, 247 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 918 SdHoareTripleChecker+Valid, 1050 SdHoareTripleChecker+Invalid, 2737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 247 IncrementalHoareTripleChecker+Valid, 2490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2024-11-14 04:02:20,891 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [918 Valid, 1050 Invalid, 2737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [247 Valid, 2490 Invalid, 0 Unknown, 0 Unchecked, 9.4s Time] [2024-11-14 04:02:20,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1165 states. [2024-11-14 04:02:21,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1165 to 1044. [2024-11-14 04:02:21,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1044 states, 905 states have (on average 1.230939226519337) internal successors, (1114), 917 states have internal predecessors, (1114), 112 states have call successors, (112), 14 states have call predecessors, (112), 14 states have return successors, (112), 112 states have call predecessors, (112), 112 states have call successors, (112) [2024-11-14 04:02:21,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 1338 transitions. [2024-11-14 04:02:21,214 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 1338 transitions. Word has length 131 [2024-11-14 04:02:21,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:02:21,215 INFO L471 AbstractCegarLoop]: Abstraction has 1044 states and 1338 transitions. [2024-11-14 04:02:21,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 5.551724137931035) internal successors, (161), 30 states have internal predecessors, (161), 12 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 12 states have call predecessors, (34), 12 states have call successors, (34) [2024-11-14 04:02:21,215 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 1338 transitions. [2024-11-14 04:02:21,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-14 04:02:21,216 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:02:21,216 INFO L215 NwaCegarLoop]: trace histogram [16, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-11-14 04:02:21,240 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-11-14 04:02:21,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-14 04:02:21,421 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 04:02:21,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:02:21,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1318807109, now seen corresponding path program 4 times [2024-11-14 04:02:21,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:02:21,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848843348] [2024-11-14 04:02:21,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:02:21,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:02:21,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:02:21,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1777930997] [2024-11-14 04:02:21,476 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-14 04:02:21,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:02:21,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:02:21,478 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:02:21,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-14 04:02:21,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:02:21,582 INFO L255 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-14 04:02:21,585 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:02:22,476 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 0 proven. 106 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2024-11-14 04:02:22,476 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:02:22,917 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:02:22,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848843348] [2024-11-14 04:02:22,917 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:02:22,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1777930997] [2024-11-14 04:02:22,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1777930997] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:02:22,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [962287244] [2024-11-14 04:02:22,919 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-14 04:02:22,919 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:02:22,919 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:02:22,919 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:02:22,919 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:02:24,149 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 04:02:24,267 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 04:02:25,010 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2024-11-14 04:02:25,014 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:02:37,113 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '62286#(and (exists ((|v_ULTIMATE.start_main_~q~0#1_139| Int) (|v_ULTIMATE.start_main_~B~0#1_55| Int) (v_~counter~0_254 Int)) (and (<= 1 |#StackHeapBarrier|) (<= 9223372036854775808 (* (mod |v_ULTIMATE.start_main_~B~0#1_55| 4294967296) |v_ULTIMATE.start_main_~q~0#1_139|)) (<= 0 |ULTIMATE.start_main_~r~0#1|) (= ~counter~0 (+ v_~counter~0_254 1)) (<= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) 9223372036854775807) (<= |v_ULTIMATE.start_main_~q~0#1_139| 9223372036854775807) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807) (<= 3 ~counter~0))) (<= ~counter~0 100))' at error location [2024-11-14 04:02:37,113 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:02:37,113 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:02:37,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-14 04:02:37,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874784167] [2024-11-14 04:02:37,113 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 04:02:37,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-14 04:02:37,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:02:37,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-14 04:02:37,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=275, Invalid=1616, Unknown=1, NotChecked=0, Total=1892 [2024-11-14 04:02:37,114 INFO L87 Difference]: Start difference. First operand 1044 states and 1338 transitions. Second operand has 9 states, 8 states have (on average 11.0) internal successors, (88), 9 states have internal predecessors, (88), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-14 04:02:37,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:02:37,670 INFO L93 Difference]: Finished difference Result 1117 states and 1427 transitions. [2024-11-14 04:02:37,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-14 04:02:37,671 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.0) internal successors, (88), 9 states have internal predecessors, (88), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 135 [2024-11-14 04:02:37,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:02:37,674 INFO L225 Difference]: With dead ends: 1117 [2024-11-14 04:02:37,674 INFO L226 Difference]: Without dead ends: 1115 [2024-11-14 04:02:37,675 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 235 SyntacticMatches, 9 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 743 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=275, Invalid=1616, Unknown=1, NotChecked=0, Total=1892 [2024-11-14 04:02:37,675 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 59 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 04:02:37,675 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 390 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 04:02:37,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2024-11-14 04:02:37,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 1096. [2024-11-14 04:02:37,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1096 states, 953 states have (on average 1.224554039874082) internal successors, (1167), 965 states have internal predecessors, (1167), 116 states have call successors, (116), 14 states have call predecessors, (116), 14 states have return successors, (116), 116 states have call predecessors, (116), 116 states have call successors, (116) [2024-11-14 04:02:37,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 1096 states and 1399 transitions. [2024-11-14 04:02:37,900 INFO L78 Accepts]: Start accepts. Automaton has 1096 states and 1399 transitions. Word has length 135 [2024-11-14 04:02:37,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:02:37,900 INFO L471 AbstractCegarLoop]: Abstraction has 1096 states and 1399 transitions. [2024-11-14 04:02:37,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.0) internal successors, (88), 9 states have internal predecessors, (88), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-14 04:02:37,901 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states and 1399 transitions. [2024-11-14 04:02:37,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-14 04:02:37,902 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:02:37,902 INFO L215 NwaCegarLoop]: trace histogram [18, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:02:37,918 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-11-14 04:02:38,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:02:38,103 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 04:02:38,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:02:38,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1573627744, now seen corresponding path program 2 times [2024-11-14 04:02:38,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:02:38,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334140929] [2024-11-14 04:02:38,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:02:38,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:02:38,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:02:38,687 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 138 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2024-11-14 04:02:38,688 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:02:38,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334140929] [2024-11-14 04:02:38,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334140929] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:02:38,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [667305201] [2024-11-14 04:02:38,688 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 04:02:38,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:02:38,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:02:38,691 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:02:38,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-14 04:02:39,084 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2024-11-14 04:02:39,085 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:02:39,086 INFO L255 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-14 04:02:39,088 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:02:39,322 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 414 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-14 04:02:39,322 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:02:39,980 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 138 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2024-11-14 04:02:39,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [667305201] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:02:39,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [704971907] [2024-11-14 04:02:39,982 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-14 04:02:39,982 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:02:39,982 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:02:39,983 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:02:39,983 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:02:42,121 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2024-11-14 04:02:42,125 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:03:05,758 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '65884#(exists ((|v_ULTIMATE.start_main_~d~0#1_300| Int) (v_~counter~0_273 Int) (|v_ULTIMATE.start_main_~q~0#1_146| Int)) (and (<= 1 |#StackHeapBarrier|) (= v_~counter~0_273 100) (<= (+ 9223372036854775809 (* |v_ULTIMATE.start_main_~q~0#1_146| |v_ULTIMATE.start_main_~d~0#1_300|)) 0) (= ~counter~0 101) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807)))' at error location [2024-11-14 04:03:05,758 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:03:05,758 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:03:05,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 17, 18] total 37 [2024-11-14 04:03:05,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632275847] [2024-11-14 04:03:05,759 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 04:03:05,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-14 04:03:05,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:03:05,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-14 04:03:05,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=501, Invalid=4327, Unknown=2, NotChecked=0, Total=4830 [2024-11-14 04:03:05,762 INFO L87 Difference]: Start difference. First operand 1096 states and 1399 transitions. Second operand has 37 states, 37 states have (on average 5.621621621621622) internal successors, (208), 37 states have internal predecessors, (208), 14 states have call successors, (54), 8 states have call predecessors, (54), 8 states have return successors, (54), 14 states have call predecessors, (54), 14 states have call successors, (54) [2024-11-14 04:03:07,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:03:07,787 INFO L93 Difference]: Finished difference Result 2227 states and 2830 transitions. [2024-11-14 04:03:07,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2024-11-14 04:03:07,788 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 5.621621621621622) internal successors, (208), 37 states have internal predecessors, (208), 14 states have call successors, (54), 8 states have call predecessors, (54), 8 states have return successors, (54), 14 states have call predecessors, (54), 14 states have call successors, (54) Word has length 152 [2024-11-14 04:03:07,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:03:07,792 INFO L225 Difference]: With dead ends: 2227 [2024-11-14 04:03:07,792 INFO L226 Difference]: Without dead ends: 1940 [2024-11-14 04:03:07,793 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 507 GetRequests, 394 SyntacticMatches, 11 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4727 ImplicationChecksByTransitivity, 25.3s TimeCoverageRelationStatistics Valid=1286, Invalid=9424, Unknown=2, NotChecked=0, Total=10712 [2024-11-14 04:03:07,794 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 253 mSDsluCounter, 836 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 891 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 04:03:07,794 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 891 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 04:03:07,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1940 states. [2024-11-14 04:03:08,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1940 to 1918. [2024-11-14 04:03:08,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1918 states, 1694 states have (on average 1.1829988193624557) internal successors, (2004), 1706 states have internal predecessors, (2004), 188 states have call successors, (188), 23 states have call predecessors, (188), 23 states have return successors, (188), 188 states have call predecessors, (188), 188 states have call successors, (188) [2024-11-14 04:03:08,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1918 states to 1918 states and 2380 transitions. [2024-11-14 04:03:08,280 INFO L78 Accepts]: Start accepts. Automaton has 1918 states and 2380 transitions. Word has length 152 [2024-11-14 04:03:08,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:03:08,281 INFO L471 AbstractCegarLoop]: Abstraction has 1918 states and 2380 transitions. [2024-11-14 04:03:08,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 5.621621621621622) internal successors, (208), 37 states have internal predecessors, (208), 14 states have call successors, (54), 8 states have call predecessors, (54), 8 states have return successors, (54), 14 states have call predecessors, (54), 14 states have call successors, (54) [2024-11-14 04:03:08,281 INFO L276 IsEmpty]: Start isEmpty. Operand 1918 states and 2380 transitions. [2024-11-14 04:03:08,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-14 04:03:08,282 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:03:08,282 INFO L215 NwaCegarLoop]: trace histogram [21, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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] [2024-11-14 04:03:08,287 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-11-14 04:03:08,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:03:08,483 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 04:03:08,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:03:08,483 INFO L85 PathProgramCache]: Analyzing trace with hash 2078533323, now seen corresponding path program 2 times [2024-11-14 04:03:08,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:03:08,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950442859] [2024-11-14 04:03:08,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:03:08,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:03:08,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:03:08,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1798469033] [2024-11-14 04:03:08,523 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 04:03:08,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:03:08,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:03:08,525 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:03:08,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-14 04:03:08,606 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-14 04:03:08,606 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:03:08,607 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 04:03:08,610 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:03:09,432 INFO L134 CoverageAnalysis]: Checked inductivity of 621 backedges. 20 proven. 11 refuted. 0 times theorem prover too weak. 590 trivial. 0 not checked. [2024-11-14 04:03:09,432 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:03:12,344 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:03:12,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950442859] [2024-11-14 04:03:12,344 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:03:12,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1798469033] [2024-11-14 04:03:12,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1798469033] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:03:12,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1091123599] [2024-11-14 04:03:12,345 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-14 04:03:12,345 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:03:12,346 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:03:12,346 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:03:12,346 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:03:13,716 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 04:03:13,825 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 04:03:14,708 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2024-11-14 04:03:14,713 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:03:30,412 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '71415#(and (exists ((|v_ULTIMATE.start_main_~p~0#1_308| Int) (|v_ULTIMATE.start_main_~B~0#1_58| Int)) (and (= (+ (* |ULTIMATE.start_main_~q~0#1| (mod |v_ULTIMATE.start_main_~B~0#1_58| 4294967296)) |ULTIMATE.start_main_~r~0#1|) (mod |ULTIMATE.start_main_~A~0#1| 4294967296)) (<= 9223372036854775808 (* (mod |v_ULTIMATE.start_main_~B~0#1_58| 4294967296) |v_ULTIMATE.start_main_~p~0#1_308|)))) (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~r~0#1|) (<= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) 9223372036854775807) (<= ~counter~0 100) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807) (<= 3 ~counter~0))' at error location [2024-11-14 04:03:30,413 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:03:30,413 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:03:30,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-14 04:03:30,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438145013] [2024-11-14 04:03:30,413 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 04:03:30,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 04:03:30,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:03:30,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 04:03:30,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=277, Invalid=1701, Unknown=2, NotChecked=0, Total=1980 [2024-11-14 04:03:30,414 INFO L87 Difference]: Start difference. First operand 1918 states and 2380 transitions. Second operand has 8 states, 6 states have (on average 7.5) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 04:03:33,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:03:33,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:03:33,972 INFO L93 Difference]: Finished difference Result 1975 states and 2451 transitions. [2024-11-14 04:03:33,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-14 04:03:33,972 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 7.5) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 156 [2024-11-14 04:03:33,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:03:33,987 INFO L225 Difference]: With dead ends: 1975 [2024-11-14 04:03:33,987 INFO L226 Difference]: Without dead ends: 1973 [2024-11-14 04:03:33,988 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 283 SyntacticMatches, 9 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 969 ImplicationChecksByTransitivity, 18.4s TimeCoverageRelationStatistics Valid=313, Invalid=2037, Unknown=2, NotChecked=0, Total=2352 [2024-11-14 04:03:33,989 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 110 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:03:33,989 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 228 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-14 04:03:33,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1973 states. [2024-11-14 04:03:34,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1973 to 1531. [2024-11-14 04:03:34,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1531 states, 1342 states have (on average 1.1520119225037257) internal successors, (1546), 1353 states have internal predecessors, (1546), 154 states have call successors, (154), 23 states have call predecessors, (154), 23 states have return successors, (154), 154 states have call predecessors, (154), 154 states have call successors, (154) [2024-11-14 04:03:34,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1531 states to 1531 states and 1854 transitions. [2024-11-14 04:03:34,420 INFO L78 Accepts]: Start accepts. Automaton has 1531 states and 1854 transitions. Word has length 156 [2024-11-14 04:03:34,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:03:34,420 INFO L471 AbstractCegarLoop]: Abstraction has 1531 states and 1854 transitions. [2024-11-14 04:03:34,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 7.5) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 04:03:34,421 INFO L276 IsEmpty]: Start isEmpty. Operand 1531 states and 1854 transitions. [2024-11-14 04:03:34,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-14 04:03:34,422 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:03:34,423 INFO L215 NwaCegarLoop]: trace histogram [19, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-11-14 04:03:34,446 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-11-14 04:03:34,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2024-11-14 04:03:34,626 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 04:03:34,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:03:34,627 INFO L85 PathProgramCache]: Analyzing trace with hash -533251676, now seen corresponding path program 5 times [2024-11-14 04:03:34,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:03:34,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868301773] [2024-11-14 04:03:34,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:03:34,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:03:34,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:03:34,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1113036213] [2024-11-14 04:03:34,667 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 04:03:34,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:03:34,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:03:34,669 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:03:34,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f0938e5-5761-4989-a7f0-b9dfc66d00ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-14 04:03:34,870 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-14 04:03:34,870 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:03:34,871 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-14 04:03:34,874 INFO L278 TraceCheckSpWp]: Computing forward predicates...