./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.3.ufo.UNBOUNDED.pals.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_2081e19c-16ec-4344-b41f-323252d364ae/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2081e19c-16ec-4344-b41f-323252d364ae/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_2081e19c-16ec-4344-b41f-323252d364ae/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2081e19c-16ec-4344-b41f-323252d364ae/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.3.ufo.UNBOUNDED.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2081e19c-16ec-4344-b41f-323252d364ae/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_2081e19c-16ec-4344-b41f-323252d364ae/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 92be10af768295be2ee9c176bac2a7de85c1afeb202e4b441d20022190d8e93f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 02:42:53,005 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 02:42:53,079 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2081e19c-16ec-4344-b41f-323252d364ae/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-14 02:42:53,083 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 02:42:53,084 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 02:42:53,113 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 02:42:53,114 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 02:42:53,114 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 02:42:53,114 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 02:42:53,115 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 02:42:53,116 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 02:42:53,116 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 02:42:53,116 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 02:42:53,117 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 02:42:53,117 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 02:42:53,117 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 02:42:53,117 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 02:42:53,117 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 02:42:53,117 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 02:42:53,117 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 02:42:53,118 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 02:42:53,118 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 02:42:53,118 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 02:42:53,118 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 02:42:53,119 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 02:42:53,119 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 02:42:53,119 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 02:42:53,119 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 02:42:53,119 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 02:42:53,119 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 02:42:53,119 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 02:42:53,119 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 02:42:53,119 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 02:42:53,119 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 02:42:53,120 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 02:42:53,120 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 02:42:53,120 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 02:42:53,120 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 02:42:53,120 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 02:42:53,120 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 02:42:53,121 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 02:42:53,121 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 02:42:53,121 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 02:42:53,121 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 02:42:53,121 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 02:42:53,121 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 02:42:53,121 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 02:42:53,121 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 02:42:53,121 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 02:42:53,121 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_2081e19c-16ec-4344-b41f-323252d364ae/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 -> 92be10af768295be2ee9c176bac2a7de85c1afeb202e4b441d20022190d8e93f [2024-11-14 02:42:53,447 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 02:42:53,460 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 02:42:53,463 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 02:42:53,464 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 02:42:53,464 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 02:42:53,466 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2081e19c-16ec-4344-b41f-323252d364ae/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/seq-mthreaded/pals_lcr.3.ufo.UNBOUNDED.pals.c Unable to find full path for "g++" [2024-11-14 02:42:55,600 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 02:42:55,921 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 02:42:55,922 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2081e19c-16ec-4344-b41f-323252d364ae/sv-benchmarks/c/seq-mthreaded/pals_lcr.3.ufo.UNBOUNDED.pals.c [2024-11-14 02:42:55,934 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2081e19c-16ec-4344-b41f-323252d364ae/bin/utaipan-verify-sOmjnqqW8E/data/67127a4f1/61b6e7ab319c4828989f693a7d918704/FLAGe5809ed11 [2024-11-14 02:42:56,181 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2081e19c-16ec-4344-b41f-323252d364ae/bin/utaipan-verify-sOmjnqqW8E/data/67127a4f1/61b6e7ab319c4828989f693a7d918704 [2024-11-14 02:42:56,183 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 02:42:56,184 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 02:42:56,185 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 02:42:56,185 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 02:42:56,188 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 02:42:56,189 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 02:42:56" (1/1) ... [2024-11-14 02:42:56,190 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d30c810 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:42:56, skipping insertion in model container [2024-11-14 02:42:56,190 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 02:42:56" (1/1) ... [2024-11-14 02:42:56,210 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 02:42:56,427 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 02:42:56,439 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 02:42:56,478 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 02:42:56,493 INFO L204 MainTranslator]: Completed translation [2024-11-14 02:42:56,494 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:42:56 WrapperNode [2024-11-14 02:42:56,494 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 02:42:56,495 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 02:42:56,495 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 02:42:56,496 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 02:42:56,502 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:42:56" (1/1) ... [2024-11-14 02:42:56,511 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:42:56" (1/1) ... [2024-11-14 02:42:56,550 INFO L138 Inliner]: procedures = 23, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 236 [2024-11-14 02:42:56,550 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 02:42:56,551 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 02:42:56,551 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 02:42:56,551 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 02:42:56,559 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:42:56" (1/1) ... [2024-11-14 02:42:56,559 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:42:56" (1/1) ... [2024-11-14 02:42:56,561 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:42:56" (1/1) ... [2024-11-14 02:42:56,562 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:42:56" (1/1) ... [2024-11-14 02:42:56,567 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:42:56" (1/1) ... [2024-11-14 02:42:56,572 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:42:56" (1/1) ... [2024-11-14 02:42:56,573 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:42:56" (1/1) ... [2024-11-14 02:42:56,575 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:42:56" (1/1) ... [2024-11-14 02:42:56,581 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 02:42:56,582 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 02:42:56,582 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 02:42:56,582 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 02:42:56,584 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:42:56" (1/1) ... [2024-11-14 02:42:56,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 02:42:56,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2081e19c-16ec-4344-b41f-323252d364ae/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:42:56,637 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2081e19c-16ec-4344-b41f-323252d364ae/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 02:42:56,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2081e19c-16ec-4344-b41f-323252d364ae/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 02:42:56,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 02:42:56,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 02:42:56,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 02:42:56,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 02:42:56,769 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 02:42:56,771 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 02:42:57,272 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2024-11-14 02:42:57,272 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 02:42:57,655 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 02:42:57,656 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 02:42:57,656 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 02:42:57 BoogieIcfgContainer [2024-11-14 02:42:57,656 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 02:42:57,658 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 02:42:57,658 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 02:42:57,663 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 02:42:57,663 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 02:42:56" (1/3) ... [2024-11-14 02:42:57,664 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aa9603f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 02:42:57, skipping insertion in model container [2024-11-14 02:42:57,664 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:42:56" (2/3) ... [2024-11-14 02:42:57,664 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aa9603f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 02:42:57, skipping insertion in model container [2024-11-14 02:42:57,664 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 02:42:57" (3/3) ... [2024-11-14 02:42:57,665 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.ufo.UNBOUNDED.pals.c [2024-11-14 02:42:57,683 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 02:42:57,686 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.3.ufo.UNBOUNDED.pals.c that has 1 procedures, 38 locations, 1 initial locations, 1 loop locations, and 14 error locations. [2024-11-14 02:42:57,752 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 02:42:57,767 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;@49dd3ca2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 02:42:57,767 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-11-14 02:42:57,771 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 23 states have (on average 1.8695652173913044) internal successors, (43), 37 states have internal predecessors, (43), 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 02:42:57,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-14 02:42:57,777 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:42:57,777 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-14 02:42:57,778 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 02:42:57,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:42:57,781 INFO L85 PathProgramCache]: Analyzing trace with hash 11531134, now seen corresponding path program 1 times [2024-11-14 02:42:57,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:42:57,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542895768] [2024-11-14 02:42:57,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:42:57,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:42:57,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:42:58,381 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 02:42:58,381 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:42:58,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542895768] [2024-11-14 02:42:58,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542895768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:42:58,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:42:58,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 02:42:58,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944322411] [2024-11-14 02:42:58,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:42:58,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 02:42:58,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:42:58,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 02:42:58,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:42:58,415 INFO L87 Difference]: Start difference. First operand has 38 states, 23 states have (on average 1.8695652173913044) internal successors, (43), 37 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:42:58,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:42:58,523 INFO L93 Difference]: Finished difference Result 104 states and 123 transitions. [2024-11-14 02:42:58,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 02:42:58,526 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-14 02:42:58,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:42:58,535 INFO L225 Difference]: With dead ends: 104 [2024-11-14 02:42:58,536 INFO L226 Difference]: Without dead ends: 67 [2024-11-14 02:42:58,542 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 02:42:58,547 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 34 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 02:42:58,548 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 97 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 02:42:58,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2024-11-14 02:42:58,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 55. [2024-11-14 02:42:58,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 43 states have (on average 1.7674418604651163) internal successors, (76), 54 states have internal predecessors, (76), 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 02:42:58,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 76 transitions. [2024-11-14 02:42:58,590 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 76 transitions. Word has length 4 [2024-11-14 02:42:58,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:42:58,591 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 76 transitions. [2024-11-14 02:42:58,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:42:58,592 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 76 transitions. [2024-11-14 02:42:58,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-14 02:42:58,592 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:42:58,592 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-14 02:42:58,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 02:42:58,593 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 02:42:58,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:42:58,595 INFO L85 PathProgramCache]: Analyzing trace with hash 357317644, now seen corresponding path program 1 times [2024-11-14 02:42:58,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:42:58,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362214620] [2024-11-14 02:42:58,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:42:58,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:42:58,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:42:59,151 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 02:42:59,152 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:42:59,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362214620] [2024-11-14 02:42:59,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362214620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:42:59,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:42:59,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 02:42:59,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184642327] [2024-11-14 02:42:59,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:42:59,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 02:42:59,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:42:59,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 02:42:59,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 02:42:59,157 INFO L87 Difference]: Start difference. First operand 55 states and 76 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:42:59,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:42:59,362 INFO L93 Difference]: Finished difference Result 89 states and 118 transitions. [2024-11-14 02:42:59,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 02:42:59,363 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-14 02:42:59,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:42:59,364 INFO L225 Difference]: With dead ends: 89 [2024-11-14 02:42:59,364 INFO L226 Difference]: Without dead ends: 86 [2024-11-14 02:42:59,364 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 02:42:59,365 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 34 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 02:42:59,365 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 24 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 02:42:59,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-14 02:42:59,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 71. [2024-11-14 02:42:59,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 59 states have (on average 1.728813559322034) internal successors, (102), 70 states have internal predecessors, (102), 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 02:42:59,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 102 transitions. [2024-11-14 02:42:59,383 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 102 transitions. Word has length 5 [2024-11-14 02:42:59,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:42:59,384 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 102 transitions. [2024-11-14 02:42:59,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:42:59,384 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 102 transitions. [2024-11-14 02:42:59,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-14 02:42:59,384 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:42:59,384 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-14 02:42:59,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 02:42:59,384 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 02:42:59,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:42:59,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1808054686, now seen corresponding path program 1 times [2024-11-14 02:42:59,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:42:59,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116282020] [2024-11-14 02:42:59,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:42:59,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:42:59,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:42:59,859 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 02:42:59,860 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:42:59,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116282020] [2024-11-14 02:42:59,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116282020] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:42:59,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:42:59,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 02:42:59,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661935034] [2024-11-14 02:42:59,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:42:59,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 02:42:59,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:42:59,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 02:42:59,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 02:42:59,863 INFO L87 Difference]: Start difference. First operand 71 states and 102 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 02:43:00,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:43:00,025 INFO L93 Difference]: Finished difference Result 89 states and 115 transitions. [2024-11-14 02:43:00,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 02:43:00,026 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2024-11-14 02:43:00,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:43:00,027 INFO L225 Difference]: With dead ends: 89 [2024-11-14 02:43:00,028 INFO L226 Difference]: Without dead ends: 86 [2024-11-14 02:43:00,028 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 02:43:00,029 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 30 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 02:43:00,031 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 27 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 02:43:00,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-14 02:43:00,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 72. [2024-11-14 02:43:00,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 60 states have (on average 1.6833333333333333) internal successors, (101), 71 states have internal predecessors, (101), 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 02:43:00,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 101 transitions. [2024-11-14 02:43:00,044 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 101 transitions. Word has length 6 [2024-11-14 02:43:00,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:43:00,045 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 101 transitions. [2024-11-14 02:43:00,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 02:43:00,047 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 101 transitions. [2024-11-14 02:43:00,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-14 02:43:00,048 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:43:00,048 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:43:00,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 02:43:00,048 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 02:43:00,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:43:00,048 INFO L85 PathProgramCache]: Analyzing trace with hash -215120178, now seen corresponding path program 1 times [2024-11-14 02:43:00,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:43:00,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133245729] [2024-11-14 02:43:00,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:43:00,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:43:00,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:43:00,475 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 02:43:00,475 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:43:00,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133245729] [2024-11-14 02:43:00,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133245729] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:43:00,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:43:00,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 02:43:00,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369989601] [2024-11-14 02:43:00,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:43:00,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 02:43:00,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:43:00,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 02:43:00,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 02:43:00,477 INFO L87 Difference]: Start difference. First operand 72 states and 101 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:43:00,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:43:00,608 INFO L93 Difference]: Finished difference Result 96 states and 131 transitions. [2024-11-14 02:43:00,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 02:43:00,608 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-14 02:43:00,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:43:00,609 INFO L225 Difference]: With dead ends: 96 [2024-11-14 02:43:00,609 INFO L226 Difference]: Without dead ends: 93 [2024-11-14 02:43:00,610 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 02:43:00,610 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 28 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 02:43:00,611 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 30 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 02:43:00,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-14 02:43:00,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 80. [2024-11-14 02:43:00,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 68 states have (on average 1.661764705882353) internal successors, (113), 79 states have internal predecessors, (113), 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 02:43:00,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 113 transitions. [2024-11-14 02:43:00,624 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 113 transitions. Word has length 7 [2024-11-14 02:43:00,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:43:00,625 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 113 transitions. [2024-11-14 02:43:00,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:43:00,625 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 113 transitions. [2024-11-14 02:43:00,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-14 02:43:00,625 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:43:00,625 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:43:00,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 02:43:00,626 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 02:43:00,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:43:00,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1921209316, now seen corresponding path program 1 times [2024-11-14 02:43:00,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:43:00,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70110664] [2024-11-14 02:43:00,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:43:00,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:43:00,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:43:01,082 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 02:43:01,083 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:43:01,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70110664] [2024-11-14 02:43:01,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70110664] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:43:01,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:43:01,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 02:43:01,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863910596] [2024-11-14 02:43:01,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:43:01,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 02:43:01,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:43:01,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 02:43:01,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 02:43:01,085 INFO L87 Difference]: Start difference. First operand 80 states and 113 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:43:01,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:43:01,212 INFO L93 Difference]: Finished difference Result 150 states and 212 transitions. [2024-11-14 02:43:01,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 02:43:01,213 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-14 02:43:01,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:43:01,214 INFO L225 Difference]: With dead ends: 150 [2024-11-14 02:43:01,214 INFO L226 Difference]: Without dead ends: 88 [2024-11-14 02:43:01,214 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 02:43:01,215 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 21 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 02:43:01,215 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 34 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 02:43:01,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-11-14 02:43:01,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 82. [2024-11-14 02:43:01,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 70 states have (on average 1.6) internal successors, (112), 81 states have internal predecessors, (112), 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 02:43:01,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 112 transitions. [2024-11-14 02:43:01,222 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 112 transitions. Word has length 8 [2024-11-14 02:43:01,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:43:01,222 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 112 transitions. [2024-11-14 02:43:01,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:43:01,223 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 112 transitions. [2024-11-14 02:43:01,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-14 02:43:01,223 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:43:01,223 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:43:01,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 02:43:01,224 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 02:43:01,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:43:01,224 INFO L85 PathProgramCache]: Analyzing trace with hash -61225679, now seen corresponding path program 1 times [2024-11-14 02:43:01,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:43:01,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980758054] [2024-11-14 02:43:01,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:43:01,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:43:01,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:43:01,322 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 02:43:01,322 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:43:01,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980758054] [2024-11-14 02:43:01,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980758054] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:43:01,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:43:01,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 02:43:01,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173310946] [2024-11-14 02:43:01,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:43:01,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 02:43:01,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:43:01,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 02:43:01,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:43:01,324 INFO L87 Difference]: Start difference. First operand 82 states and 112 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 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 02:43:01,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:43:01,370 INFO L93 Difference]: Finished difference Result 171 states and 234 transitions. [2024-11-14 02:43:01,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 02:43:01,371 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 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 16 [2024-11-14 02:43:01,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:43:01,372 INFO L225 Difference]: With dead ends: 171 [2024-11-14 02:43:01,372 INFO L226 Difference]: Without dead ends: 104 [2024-11-14 02:43:01,372 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 02:43:01,373 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 19 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 02:43:01,374 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 62 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 02:43:01,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-14 02:43:01,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 92. [2024-11-14 02:43:01,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 80 states have (on average 1.625) internal successors, (130), 91 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:43:01,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 130 transitions. [2024-11-14 02:43:01,381 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 130 transitions. Word has length 16 [2024-11-14 02:43:01,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:43:01,381 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 130 transitions. [2024-11-14 02:43:01,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 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 02:43:01,382 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 130 transitions. [2024-11-14 02:43:01,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-14 02:43:01,382 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:43:01,382 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:43:01,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-14 02:43:01,383 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 02:43:01,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:43:01,383 INFO L85 PathProgramCache]: Analyzing trace with hash 749010533, now seen corresponding path program 1 times [2024-11-14 02:43:01,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:43:01,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470427154] [2024-11-14 02:43:01,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:43:01,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:43:01,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:43:01,508 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 02:43:01,508 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:43:01,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470427154] [2024-11-14 02:43:01,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470427154] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:43:01,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:43:01,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 02:43:01,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124279996] [2024-11-14 02:43:01,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:43:01,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 02:43:01,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:43:01,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 02:43:01,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:43:01,511 INFO L87 Difference]: Start difference. First operand 92 states and 130 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 02:43:01,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:43:01,540 INFO L93 Difference]: Finished difference Result 173 states and 249 transitions. [2024-11-14 02:43:01,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 02:43:01,540 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 20 [2024-11-14 02:43:01,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:43:01,541 INFO L225 Difference]: With dead ends: 173 [2024-11-14 02:43:01,541 INFO L226 Difference]: Without dead ends: 92 [2024-11-14 02:43:01,542 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:43:01,542 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 0 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 02:43:01,543 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 65 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 02:43:01,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-14 02:43:01,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2024-11-14 02:43:01,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 80 states have (on average 1.55) internal successors, (124), 91 states have internal predecessors, (124), 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 02:43:01,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 124 transitions. [2024-11-14 02:43:01,549 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 124 transitions. Word has length 20 [2024-11-14 02:43:01,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:43:01,550 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 124 transitions. [2024-11-14 02:43:01,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 02:43:01,550 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 124 transitions. [2024-11-14 02:43:01,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-14 02:43:01,550 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:43:01,550 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:43:01,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-14 02:43:01,550 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 02:43:01,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:43:01,551 INFO L85 PathProgramCache]: Analyzing trace with hash 2140662146, now seen corresponding path program 1 times [2024-11-14 02:43:01,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:43:01,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828925282] [2024-11-14 02:43:01,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:43:01,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:43:01,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:43:01,642 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 02:43:01,642 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:43:01,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828925282] [2024-11-14 02:43:01,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828925282] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:43:01,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:43:01,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 02:43:01,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268468888] [2024-11-14 02:43:01,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:43:01,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 02:43:01,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:43:01,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 02:43:01,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:43:01,644 INFO L87 Difference]: Start difference. First operand 92 states and 124 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 02:43:01,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:43:01,677 INFO L93 Difference]: Finished difference Result 171 states and 215 transitions. [2024-11-14 02:43:01,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 02:43:01,678 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 21 [2024-11-14 02:43:01,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:43:01,678 INFO L225 Difference]: With dead ends: 171 [2024-11-14 02:43:01,679 INFO L226 Difference]: Without dead ends: 93 [2024-11-14 02:43:01,679 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:43:01,680 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 20 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 02:43:01,680 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 80 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 02:43:01,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-14 02:43:01,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 78. [2024-11-14 02:43:01,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 66 states have (on average 1.5151515151515151) internal successors, (100), 77 states have internal predecessors, (100), 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 02:43:01,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 100 transitions. [2024-11-14 02:43:01,686 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 100 transitions. Word has length 21 [2024-11-14 02:43:01,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:43:01,687 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 100 transitions. [2024-11-14 02:43:01,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 02:43:01,687 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 100 transitions. [2024-11-14 02:43:01,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-14 02:43:01,687 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:43:01,687 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:43:01,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-14 02:43:01,687 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 02:43:01,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:43:01,688 INFO L85 PathProgramCache]: Analyzing trace with hash 29127656, now seen corresponding path program 1 times [2024-11-14 02:43:01,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:43:01,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971259684] [2024-11-14 02:43:01,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:43:01,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:43:01,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:43:02,495 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 02:43:02,496 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:43:02,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971259684] [2024-11-14 02:43:02,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971259684] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:43:02,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1860636196] [2024-11-14 02:43:02,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:43:02,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:43:02,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2081e19c-16ec-4344-b41f-323252d364ae/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:43:02,501 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2081e19c-16ec-4344-b41f-323252d364ae/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:43:02,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2081e19c-16ec-4344-b41f-323252d364ae/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 02:43:02,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:43:02,626 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 02:43:02,633 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:43:04,365 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 02:43:04,365 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:43:05,695 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 02:43:05,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1860636196] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 02:43:05,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1721334111] [2024-11-14 02:43:05,716 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2024-11-14 02:43:05,716 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 02:43:05,719 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 02:43:05,724 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 02:43:05,724 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 02:43:11,824 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 02:43:39,264 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1951#(and (= ~nomsg~0 ~p1_new~0) (= ~p3_new~0 ~nomsg~0) (<= (+ 2147483649 ~st2~0 ~st1~0) 0) (= ~nomsg~0 ~p2_new~0) (exists ((v_~st3~0_86 Int) (v_~send3~0_65 Int) (v_~p2_old~0_23 Int) (v_~p2_old~0_54 Int) (|v_ULTIMATE.start_node3_~m3~0#1_57| Int) (v_~mode3~0_63 Int) (v_~mode2~0_65 Int) (v_~p3_old~0_35 Int) (|v_ULTIMATE.start_node3_~m3~0#1_34| Int) (|v_ULTIMATE.start_node2_~m2~0#1_73| Int) (v_~p3_new~0_33 Int) (|v_ULTIMATE.start_node2_~m2~0#1_45| Int) (v_~st2~0_100 Int) (v_~p1_old~0_64 Int) (v_~p1_old~0_31 Int) (v_~send2~0_67 Int) (v_~p2_new~0_41 Int)) (and (or (and (or (and (not (= ~nomsg~0 v_~p2_old~0_54)) (or (and (= ~st3~0 v_~st3~0_86) (<= (+ ~id3~0 1) v_~p2_old~0_54) (= ~send3~0 v_~p2_old~0_54)) (and (= ~send3~0 v_~send3~0_65) (<= v_~p2_old~0_54 ~id3~0) (or (and (= ~st3~0 v_~st3~0_86) (not (= ~id3~0 v_~p2_old~0_54))) (and (= ~st3~0 1) (= ~id3~0 v_~p2_old~0_54)))))) (and (= ~nomsg~0 v_~p2_old~0_54) (= ~send3~0 v_~send3~0_65) (= ~st3~0 v_~st3~0_86))) (= v_~p3_new~0_33 ~p3_old~0) (= ~mode3~0 0) (not (= (mod v_~mode3~0_63 256) 0)) (= ~nomsg~0 v_~p2_old~0_23)) (and (= ~mode3~0 1) (= |v_ULTIMATE.start_node3_~m3~0#1_57| |v_ULTIMATE.start_node3_~m3~0#1_34|) (= v_~p2_old~0_54 v_~p2_old~0_23) (= ~send3~0 v_~send3~0_65) (= ~st3~0 v_~st3~0_86) (= (mod v_~mode3~0_63 256) 0) (or (and (= v_~p3_new~0_33 ~nomsg~0) (or (and (<= 128 (mod v_~send3~0_65 256)) (= (+ ~p3_old~0 256) (mod v_~send3~0_65 256))) (and (= ~p3_old~0 (mod v_~send3~0_65 256)) (<= (mod v_~send3~0_65 256) 127)))) (and (not (= v_~p3_new~0_33 ~nomsg~0)) (or (and (<= 128 (mod v_~p3_new~0_33 256)) (= (+ ~p3_old~0 256) (mod v_~p3_new~0_33 256))) (and (<= (mod v_~p3_new~0_33 256) 127) (= ~p3_old~0 (mod v_~p3_new~0_33 256)))))))) (or (and (= ~mode1~0 0) (= ~nomsg~0 v_~p3_old~0_35) (exists ((v_~r1~0_50 Int) (v_~st1~0_74 Int) (v_~send1~0_41 Int) (v_~p3_old~0_34 Int) (v_~mode1~0_41 Int) (v_~r1~0_49 Int)) (and (<= 0 (+ v_~st2~0_100 v_~st1~0_74 2147483648)) (= (+ v_~st2~0_100 v_~st1~0_74 v_~st3~0_86) 0) (<= 0 v_~mode1~0_41) (= ~p2~0 0) (= (+ (mod v_~r1~0_50 256) 1) ~r1~0) (<= v_~mode1~0_41 1) (= v_~r1~0_50 v_~r1~0_49) (<= (+ v_~st2~0_100 v_~st1~0_74) 2147483647) (or (and (= ~send1~0 v_~send1~0_41) (= ~nomsg~0 v_~p3_old~0_34) (= ~st1~0 v_~st1~0_74)) (and (or (and (<= (+ ~id1~0 1) v_~p3_old~0_34) (= ~send1~0 v_~p3_old~0_34) (= ~st1~0 v_~st1~0_74)) (and (= ~send1~0 v_~send1~0_41) (or (and (= ~st1~0 1) (= ~id1~0 v_~p3_old~0_34)) (and (not (= ~id1~0 v_~p3_old~0_34)) (= ~st1~0 v_~st1~0_74))) (<= v_~p3_old~0_34 ~id1~0))) (not (= ~nomsg~0 v_~p3_old~0_34)))) (not (= v_~mode1~0_41 0)) (= ~p3~0 0) (= ~p1~0 0) (<= (mod v_~r1~0_49 256) 2)))) (and (exists ((v_~p1_new~0_32 Int) (v_~mode1~0_42 Int)) (and (= (+ ~st1~0 v_~st2~0_100 v_~st3~0_86) 0) (= ~p2~0 0) (<= (+ ~st1~0 v_~st2~0_100) 2147483647) (= v_~mode1~0_42 0) (<= (mod ~r1~0 256) 2) (= ~p3~0 0) (<= 0 (+ ~st1~0 v_~st2~0_100 2147483648)) (or (and (or (and (<= (mod ~send1~0 256) 127) (= ~p1_old~0 (mod ~send1~0 256))) (and (= (+ 256 ~p1_old~0) (mod ~send1~0 256)) (<= 128 (mod ~send1~0 256)))) (= ~nomsg~0 v_~p1_new~0_32)) (and (not (= ~nomsg~0 v_~p1_new~0_32)) (or (and (<= (mod v_~p1_new~0_32 256) 127) (= (mod v_~p1_new~0_32 256) ~p1_old~0)) (and (= (+ 256 ~p1_old~0) (mod v_~p1_new~0_32 256)) (<= 128 (mod v_~p1_new~0_32 256)))))) (= ~p1~0 0))) (= ~mode1~0 1))) (or (and (= ~mode2~0 1) (= (mod v_~mode2~0_65 256) 0) (= ~send2~0 v_~send2~0_67) (= v_~p1_old~0_64 v_~p1_old~0_31) (or (and (<= (mod v_~p2_new~0_41 256) 127) (or (and (<= 128 (mod v_~send2~0_67 256)) (or (and (= v_~p2_new~0_41 ~nomsg~0) (= (mod v_~send2~0_67 256) (+ 256 ~p2_old~0))) (and (not (= v_~p2_new~0_41 ~nomsg~0)) (= ~p2_old~0 (mod v_~p2_new~0_41 256))))) (and (<= (mod v_~send2~0_67 256) 127) (or (and (= (mod v_~send2~0_67 256) ~p2_old~0) (= v_~p2_new~0_41 ~nomsg~0)) (and (not (= v_~p2_new~0_41 ~nomsg~0)) (= ~p2_old~0 (mod v_~p2_new~0_41 256))))))) (and (<= 128 (mod v_~p2_new~0_41 256)) (or (and (or (and (not (= v_~p2_new~0_41 ~nomsg~0)) (= (+ 256 ~p2_old~0) (mod v_~p2_new~0_41 256))) (and (= v_~p2_new~0_41 ~nomsg~0) (= (mod v_~send2~0_67 256) (+ 256 ~p2_old~0)))) (<= 128 (mod v_~send2~0_67 256))) (and (<= (mod v_~send2~0_67 256) 127) (or (and (not (= v_~p2_new~0_41 ~nomsg~0)) (= (+ 256 ~p2_old~0) (mod v_~p2_new~0_41 256))) (and (= (mod v_~send2~0_67 256) ~p2_old~0) (= v_~p2_new~0_41 ~nomsg~0))))))) (= |v_ULTIMATE.start_node2_~m2~0#1_73| |v_ULTIMATE.start_node2_~m2~0#1_45|) (= ~st2~0 v_~st2~0_100)) (and (= ~mode2~0 0) (not (= (mod v_~mode2~0_65 256) 0)) (= ~nomsg~0 v_~p1_old~0_31) (= v_~p2_new~0_41 ~p2_old~0) (or (and (= ~send2~0 v_~send2~0_67) (= ~nomsg~0 v_~p1_old~0_64) (= ~st2~0 v_~st2~0_100)) (and (or (and (= ~send2~0 v_~send2~0_67) (or (and (= ~st2~0 1) (= ~id2~0 v_~p1_old~0_64)) (and (not (= ~id2~0 v_~p1_old~0_64)) (= ~st2~0 v_~st2~0_100))) (<= v_~p1_old~0_64 ~id2~0)) (and (<= (+ ~id2~0 1) v_~p1_old~0_64) (= ~send2~0 v_~p1_old~0_64) (= ~st2~0 v_~st2~0_100))) (not (= ~nomsg~0 v_~p1_old~0_64)))))))))' at error location [2024-11-14 02:43:39,264 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 02:43:39,264 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 02:43:39,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 5] total 14 [2024-11-14 02:43:39,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74817609] [2024-11-14 02:43:39,265 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 02:43:39,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-14 02:43:39,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:43:39,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-14 02:43:39,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=791, Unknown=4, NotChecked=0, Total=992 [2024-11-14 02:43:39,267 INFO L87 Difference]: Start difference. First operand 78 states and 100 transitions. Second operand has 16 states, 15 states have (on average 4.6) internal successors, (69), 15 states have internal predecessors, (69), 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 02:43:39,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:43:39,490 INFO L93 Difference]: Finished difference Result 84 states and 106 transitions. [2024-11-14 02:43:39,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 02:43:39,491 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.6) internal successors, (69), 15 states have internal predecessors, (69), 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 23 [2024-11-14 02:43:39,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:43:39,491 INFO L225 Difference]: With dead ends: 84 [2024-11-14 02:43:39,492 INFO L226 Difference]: Without dead ends: 78 [2024-11-14 02:43:39,492 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 436 ImplicationChecksByTransitivity, 27.8s TimeCoverageRelationStatistics Valid=197, Invalid=791, Unknown=4, NotChecked=0, Total=992 [2024-11-14 02:43:39,493 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 58 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 02:43:39,493 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 28 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 02:43:39,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-11-14 02:43:39,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 72. [2024-11-14 02:43:39,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 66 states have (on average 1.2727272727272727) internal successors, (84), 71 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:43:39,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 84 transitions. [2024-11-14 02:43:39,506 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 84 transitions. Word has length 23 [2024-11-14 02:43:39,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:43:39,506 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 84 transitions. [2024-11-14 02:43:39,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.6) internal successors, (69), 15 states have internal predecessors, (69), 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 02:43:39,511 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 84 transitions. [2024-11-14 02:43:39,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-14 02:43:39,511 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:43:39,511 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:43:39,535 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2081e19c-16ec-4344-b41f-323252d364ae/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 02:43:39,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2081e19c-16ec-4344-b41f-323252d364ae/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:43:39,712 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 02:43:39,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:43:39,713 INFO L85 PathProgramCache]: Analyzing trace with hash -2073086038, now seen corresponding path program 1 times [2024-11-14 02:43:39,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:43:39,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599260749] [2024-11-14 02:43:39,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:43:39,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:43:39,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:43:40,323 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 02:43:40,323 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:43:40,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599260749] [2024-11-14 02:43:40,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599260749] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:43:40,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [32575104] [2024-11-14 02:43:40,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:43:40,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:43:40,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2081e19c-16ec-4344-b41f-323252d364ae/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:43:40,326 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2081e19c-16ec-4344-b41f-323252d364ae/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:43:40,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2081e19c-16ec-4344-b41f-323252d364ae/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 02:43:40,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:43:40,430 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-14 02:43:40,438 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:43:42,286 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 02:43:42,286 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:43:44,345 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 02:43:44,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [32575104] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 02:43:44,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [321784539] [2024-11-14 02:43:44,348 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2024-11-14 02:43:44,348 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 02:43:44,349 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 02:43:44,349 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 02:43:44,349 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 02:43:48,894 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 02:44:21,887 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2289#(and (exists ((v_~st3~0_95 Int) (v_~p2_old~0_23 Int) (|v_ULTIMATE.start_node3_~m3~0#1_70| Int) (v_~send3~0_74 Int) (v_~mode3~0_72 Int) (v_~p3_old~0_45 Int) (|v_ULTIMATE.start_node3_~m3~0#1_34| Int) (v_~send2~0_75 Int) (v_~st2~0_108 Int) (v_~p3_new~0_40 Int) (|v_ULTIMATE.start_node2_~m2~0#1_84| Int) (v_~p2_new~0_48 Int) (|v_ULTIMATE.start_node2_~m2~0#1_45| Int) (v_~mode2~0_73 Int) (v_~p1_old~0_31 Int) (v_~p2_old~0_68 Int) (v_~p1_old~0_76 Int)) (and (or (and (exists ((v_~p1_new~0_45 Int)) (and (= ~p2~0 0) (= (+ ~st1~0 v_~st2~0_108 v_~st3~0_95) 0) (<= (mod ~r1~0 256) 2) (or (and (or (and (<= (mod ~send1~0 256) 127) (or (and (= (mod v_~p1_new~0_45 256) ~p1_old~0) (not (= ~nomsg~0 v_~p1_new~0_45))) (and (= ~nomsg~0 v_~p1_new~0_45) (= ~p1_old~0 (mod ~send1~0 256))))) (and (or (and (= (mod v_~p1_new~0_45 256) ~p1_old~0) (not (= ~nomsg~0 v_~p1_new~0_45))) (and (= ~nomsg~0 v_~p1_new~0_45) (= (+ 256 ~p1_old~0) (mod ~send1~0 256)))) (<= 128 (mod ~send1~0 256)))) (<= (mod v_~p1_new~0_45 256) 127)) (and (or (and (or (and (= ~nomsg~0 v_~p1_new~0_45) (= (+ 256 ~p1_old~0) (mod ~send1~0 256))) (and (not (= ~nomsg~0 v_~p1_new~0_45)) (= (+ 256 ~p1_old~0) (mod v_~p1_new~0_45 256)))) (<= 128 (mod ~send1~0 256))) (and (<= (mod ~send1~0 256) 127) (or (and (= ~nomsg~0 v_~p1_new~0_45) (= ~p1_old~0 (mod ~send1~0 256))) (and (not (= ~nomsg~0 v_~p1_new~0_45)) (= (+ 256 ~p1_old~0) (mod v_~p1_new~0_45 256)))))) (<= 128 (mod v_~p1_new~0_45 256)))) (<= (+ ~st1~0 v_~st2~0_108) 2147483647) (= ~p3~0 0) (= ~p1~0 0))) (exists ((v_~mode1~0_54 Int)) (= (mod v_~mode1~0_54 256) 0)) (= ~mode1~0 1)) (and (exists ((v_~send1~0_47 Int) (v_~r1~0_61 Int) (v_~r1~0_62 Int) (v_~st1~0_80 Int) (v_~p3_old~0_44 Int)) (and (<= (mod v_~r1~0_61 256) 2) (= ~p2~0 0) (= (+ v_~st2~0_108 v_~st1~0_80 v_~st3~0_95) 0) (= v_~r1~0_62 v_~r1~0_61) (<= (+ v_~st2~0_108 v_~st1~0_80) 2147483647) (= ~p3~0 0) (= (+ (mod v_~r1~0_62 256) 1) ~r1~0) (= ~p1~0 0) (or (and (or (and (= ~send1~0 v_~p3_old~0_44) (<= (+ ~id1~0 1) v_~p3_old~0_44) (= ~st1~0 v_~st1~0_80)) (and (or (and (not (= ~id1~0 v_~p3_old~0_44)) (= ~st1~0 v_~st1~0_80)) (and (= ~st1~0 1) (= ~id1~0 v_~p3_old~0_44))) (<= v_~p3_old~0_44 ~id1~0) (= ~send1~0 v_~send1~0_47))) (not (= ~nomsg~0 v_~p3_old~0_44))) (and (= ~nomsg~0 v_~p3_old~0_44) (= ~st1~0 v_~st1~0_80) (= ~send1~0 v_~send1~0_47))))) (exists ((v_~mode1~0_53 Int)) (not (= (mod v_~mode1~0_53 256) 0))) (= ~nomsg~0 v_~p3_old~0_45) (= ~mode1~0 0))) (or (and (= ~mode2~0 1) (= ~st2~0 v_~st2~0_108) (= (mod v_~mode2~0_73 256) 0) (= v_~p1_old~0_76 v_~p1_old~0_31) (or (and (or (and (or (and (= (+ 256 ~p2_old~0) (mod v_~p2_new~0_48 256)) (not (= v_~p2_new~0_48 ~nomsg~0))) (and (= (mod v_~send2~0_75 256) (+ 256 ~p2_old~0)) (= v_~p2_new~0_48 ~nomsg~0))) (<= 128 (mod v_~p2_new~0_48 256))) (and (<= (mod v_~p2_new~0_48 256) 127) (or (and (= ~p2_old~0 (mod v_~p2_new~0_48 256)) (not (= v_~p2_new~0_48 ~nomsg~0))) (and (= (mod v_~send2~0_75 256) (+ 256 ~p2_old~0)) (= v_~p2_new~0_48 ~nomsg~0))))) (<= 128 (mod v_~send2~0_75 256))) (and (or (and (or (and (= (+ 256 ~p2_old~0) (mod v_~p2_new~0_48 256)) (not (= v_~p2_new~0_48 ~nomsg~0))) (and (= (mod v_~send2~0_75 256) ~p2_old~0) (= v_~p2_new~0_48 ~nomsg~0))) (<= 128 (mod v_~p2_new~0_48 256))) (and (or (and (= ~p2_old~0 (mod v_~p2_new~0_48 256)) (not (= v_~p2_new~0_48 ~nomsg~0))) (and (= (mod v_~send2~0_75 256) ~p2_old~0) (= v_~p2_new~0_48 ~nomsg~0))) (<= (mod v_~p2_new~0_48 256) 127))) (<= (mod v_~send2~0_75 256) 127))) (= |v_ULTIMATE.start_node2_~m2~0#1_84| |v_ULTIMATE.start_node2_~m2~0#1_45|) (= ~send2~0 v_~send2~0_75)) (and (= ~mode2~0 0) (or (and (= ~st2~0 v_~st2~0_108) (= ~nomsg~0 v_~p1_old~0_76) (= ~send2~0 v_~send2~0_75)) (and (not (= ~nomsg~0 v_~p1_old~0_76)) (or (and (= ~st2~0 v_~st2~0_108) (<= (+ ~id2~0 1) v_~p1_old~0_76) (= ~send2~0 v_~p1_old~0_76)) (and (or (and (= ~st2~0 v_~st2~0_108) (not (= ~id2~0 v_~p1_old~0_76))) (and (= ~st2~0 1) (= ~id2~0 v_~p1_old~0_76))) (<= v_~p1_old~0_76 ~id2~0) (= ~send2~0 v_~send2~0_75))))) (= ~nomsg~0 v_~p1_old~0_31) (not (= (mod v_~mode2~0_73 256) 0)) (= v_~p2_new~0_48 ~p2_old~0))) (or (and (= v_~p2_old~0_68 v_~p2_old~0_23) (= ~mode3~0 1) (= ~send3~0 v_~send3~0_74) (= ~st3~0 v_~st3~0_95) (= |v_ULTIMATE.start_node3_~m3~0#1_70| |v_ULTIMATE.start_node3_~m3~0#1_34|) (or (and (or (and (<= (mod v_~send3~0_74 256) 127) (= ~p3_old~0 (mod v_~send3~0_74 256))) (and (<= 128 (mod v_~send3~0_74 256)) (= (+ ~p3_old~0 256) (mod v_~send3~0_74 256)))) (= v_~p3_new~0_40 ~nomsg~0)) (and (or (and (<= 128 (mod v_~p3_new~0_40 256)) (= (+ ~p3_old~0 256) (mod v_~p3_new~0_40 256))) (and (= ~p3_old~0 (mod v_~p3_new~0_40 256)) (<= (mod v_~p3_new~0_40 256) 127))) (not (= v_~p3_new~0_40 ~nomsg~0)))) (= (mod v_~mode3~0_72 256) 0)) (and (not (= (mod v_~mode3~0_72 256) 0)) (= ~mode3~0 0) (or (and (= ~send3~0 v_~send3~0_74) (= ~nomsg~0 v_~p2_old~0_68) (= ~st3~0 v_~st3~0_95)) (and (not (= ~nomsg~0 v_~p2_old~0_68)) (or (and (= ~send3~0 v_~send3~0_74) (<= v_~p2_old~0_68 ~id3~0) (= ~st3~0 v_~st3~0_95) (not (= ~id3~0 v_~p2_old~0_68))) (and (= ~st3~0 v_~st3~0_95) (<= (+ ~id3~0 1) v_~p2_old~0_68) (= ~send3~0 v_~p2_old~0_68))))) (= v_~p3_new~0_40 ~p3_old~0) (= ~nomsg~0 v_~p2_old~0_23))))) (= ~nomsg~0 ~p1_new~0) (<= 0 (+ ~st2~0 ~st1~0 2147483648)) (= ~p3_new~0 ~nomsg~0) (<= (+ 2147483649 ~st3~0 ~st2~0 ~st1~0) 0) (= ~nomsg~0 ~p2_new~0))' at error location [2024-11-14 02:44:21,887 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 02:44:21,888 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 02:44:21,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 6, 6] total 13 [2024-11-14 02:44:21,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972865655] [2024-11-14 02:44:21,888 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 02:44:21,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-14 02:44:21,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:44:21,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-14 02:44:21,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=750, Unknown=8, NotChecked=0, Total=930 [2024-11-14 02:44:21,889 INFO L87 Difference]: Start difference. First operand 72 states and 84 transitions. Second operand has 15 states, 14 states have (on average 5.142857142857143) internal successors, (72), 14 states have internal predecessors, (72), 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 02:44:22,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:44:22,361 INFO L93 Difference]: Finished difference Result 105 states and 123 transitions. [2024-11-14 02:44:22,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-14 02:44:22,361 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 5.142857142857143) internal successors, (72), 14 states have internal predecessors, (72), 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 25 [2024-11-14 02:44:22,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:44:22,362 INFO L225 Difference]: With dead ends: 105 [2024-11-14 02:44:22,362 INFO L226 Difference]: Without dead ends: 102 [2024-11-14 02:44:22,363 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 45 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 33.7s TimeCoverageRelationStatistics Valid=221, Invalid=961, Unknown=8, NotChecked=0, Total=1190 [2024-11-14 02:44:22,363 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 228 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 02:44:22,364 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 46 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 02:44:22,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-11-14 02:44:22,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 61. [2024-11-14 02:44:22,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 58 states have (on average 1.1724137931034482) internal successors, (68), 60 states have internal predecessors, (68), 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 02:44:22,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 68 transitions. [2024-11-14 02:44:22,369 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 68 transitions. Word has length 25 [2024-11-14 02:44:22,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:44:22,369 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 68 transitions. [2024-11-14 02:44:22,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 5.142857142857143) internal successors, (72), 14 states have internal predecessors, (72), 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 02:44:22,369 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 68 transitions. [2024-11-14 02:44:22,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-14 02:44:22,370 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:44:22,370 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:44:22,390 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2081e19c-16ec-4344-b41f-323252d364ae/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-14 02:44:22,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2081e19c-16ec-4344-b41f-323252d364ae/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-14 02:44:22,571 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 02:44:22,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:44:22,571 INFO L85 PathProgramCache]: Analyzing trace with hash 158842504, now seen corresponding path program 1 times [2024-11-14 02:44:22,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:44:22,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369442954] [2024-11-14 02:44:22,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:44:22,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:44:22,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:44:23,380 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 02:44:23,380 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:44:23,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369442954] [2024-11-14 02:44:23,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369442954] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:44:23,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [769492474] [2024-11-14 02:44:23,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:44:23,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:44:23,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2081e19c-16ec-4344-b41f-323252d364ae/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:44:23,384 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2081e19c-16ec-4344-b41f-323252d364ae/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:44:23,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2081e19c-16ec-4344-b41f-323252d364ae/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 02:44:23,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:44:23,476 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-14 02:44:23,479 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:44:26,637 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 02:44:26,637 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:44:42,147 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 02:44:42,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [769492474] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 02:44:42,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [760187044] [2024-11-14 02:44:42,150 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2024-11-14 02:44:42,150 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 02:44:42,151 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 02:44:42,151 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 02:44:42,151 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 02:44:46,632 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 02:44:55,709 WARN L286 SmtUtils]: Spent 5.56s on a formula simplification. DAG size of input: 343 DAG size of output: 335 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 02:45:03,951 WARN L286 SmtUtils]: Spent 5.95s on a formula simplification. DAG size of input: 345 DAG size of output: 337 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 02:45:14,498 WARN L286 SmtUtils]: Spent 6.20s on a formula simplification. DAG size of input: 347 DAG size of output: 339 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 02:45:16,449 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2653#(and (<= 0 ~mode1~0) (<= ~mode1~0 1) (<= 2147483648 (+ ~st3~0 ~st2~0 ~st1~0)))' at error location [2024-11-14 02:45:16,450 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 02:45:16,450 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 02:45:16,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 14 [2024-11-14 02:45:16,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729626145] [2024-11-14 02:45:16,450 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 02:45:16,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-14 02:45:16,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:45:16,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-14 02:45:16,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=805, Unknown=3, NotChecked=0, Total=992 [2024-11-14 02:45:16,452 INFO L87 Difference]: Start difference. First operand 61 states and 68 transitions. Second operand has 16 states, 15 states have (on average 5.066666666666666) internal successors, (76), 15 states have internal predecessors, (76), 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 02:45:16,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:45:16,827 INFO L93 Difference]: Finished difference Result 87 states and 98 transitions. [2024-11-14 02:45:16,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-14 02:45:16,827 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.066666666666666) internal successors, (76), 15 states have internal predecessors, (76), 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 26 [2024-11-14 02:45:16,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:45:16,828 INFO L225 Difference]: With dead ends: 87 [2024-11-14 02:45:16,828 INFO L226 Difference]: Without dead ends: 0 [2024-11-14 02:45:16,829 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 50 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 421 ImplicationChecksByTransitivity, 31.5s TimeCoverageRelationStatistics Valid=213, Invalid=906, Unknown=3, NotChecked=0, Total=1122 [2024-11-14 02:45:16,829 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 57 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 02:45:16,829 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 30 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 02:45:16,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-14 02:45:16,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-14 02:45:16,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 02:45:16,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-14 02:45:16,834 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2024-11-14 02:45:16,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:45:16,834 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-14 02:45:16,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.066666666666666) internal successors, (76), 15 states have internal predecessors, (76), 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 02:45:16,834 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-14 02:45:16,835 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-14 02:45:16,839 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 14 remaining) [2024-11-14 02:45:16,840 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 14 remaining) [2024-11-14 02:45:16,840 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 14 remaining) [2024-11-14 02:45:16,840 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 14 remaining) [2024-11-14 02:45:16,840 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 14 remaining) [2024-11-14 02:45:16,840 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 14 remaining) [2024-11-14 02:45:16,840 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 14 remaining) [2024-11-14 02:45:16,841 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 14 remaining) [2024-11-14 02:45:16,841 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 14 remaining) [2024-11-14 02:45:16,841 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 14 remaining) [2024-11-14 02:45:16,841 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 14 remaining) [2024-11-14 02:45:16,841 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 14 remaining) [2024-11-14 02:45:16,841 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 14 remaining) [2024-11-14 02:45:16,842 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 14 remaining) [2024-11-14 02:45:16,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2081e19c-16ec-4344-b41f-323252d364ae/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-14 02:45:17,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2081e19c-16ec-4344-b41f-323252d364ae/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:45:17,049 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:45:17,051 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-14 02:45:17,300 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 02:45:17,322 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 02:45:17 BoogieIcfgContainer [2024-11-14 02:45:17,322 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 02:45:17,323 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 02:45:17,323 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 02:45:17,323 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 02:45:17,325 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 02:42:57" (3/4) ... [2024-11-14 02:45:17,328 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-14 02:45:17,343 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 50 nodes and edges [2024-11-14 02:45:17,344 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-14 02:45:17,345 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-14 02:45:17,345 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-14 02:45:17,468 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2081e19c-16ec-4344-b41f-323252d364ae/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 02:45:17,468 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2081e19c-16ec-4344-b41f-323252d364ae/bin/utaipan-verify-sOmjnqqW8E/witness.yml [2024-11-14 02:45:17,468 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 02:45:17,470 INFO L158 Benchmark]: Toolchain (without parser) took 141285.44ms. Allocated memory was 117.4MB in the beginning and 1.1GB in the end (delta: 939.5MB). Free memory was 90.4MB in the beginning and 1.0GB in the end (delta: -913.6MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. [2024-11-14 02:45:17,470 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 83.9MB. Free memory is still 39.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 02:45:17,470 INFO L158 Benchmark]: CACSL2BoogieTranslator took 309.80ms. Allocated memory is still 117.4MB. Free memory was 90.4MB in the beginning and 77.1MB in the end (delta: 13.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 02:45:17,471 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.09ms. Allocated memory is still 117.4MB. Free memory was 77.1MB in the beginning and 75.3MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 02:45:17,471 INFO L158 Benchmark]: Boogie Preprocessor took 30.76ms. Allocated memory is still 117.4MB. Free memory was 75.3MB in the beginning and 74.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 02:45:17,472 INFO L158 Benchmark]: RCFGBuilder took 1074.08ms. Allocated memory is still 117.4MB. Free memory was 74.0MB in the beginning and 68.9MB in the end (delta: 5.1MB). Peak memory consumption was 46.6MB. Max. memory is 16.1GB. [2024-11-14 02:45:17,472 INFO L158 Benchmark]: TraceAbstraction took 139663.86ms. Allocated memory was 117.4MB in the beginning and 1.1GB in the end (delta: 939.5MB). Free memory was 68.9MB in the beginning and 1.0GB in the end (delta: -943.4MB). Peak memory consumption was 614.5MB. Max. memory is 16.1GB. [2024-11-14 02:45:17,472 INFO L158 Benchmark]: Witness Printer took 145.51ms. Allocated memory is still 1.1GB. Free memory was 1.0GB in the beginning and 1.0GB in the end (delta: 8.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 02:45:17,474 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 83.9MB. Free memory is still 39.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 309.80ms. Allocated memory is still 117.4MB. Free memory was 90.4MB in the beginning and 77.1MB in the end (delta: 13.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.09ms. Allocated memory is still 117.4MB. Free memory was 77.1MB in the beginning and 75.3MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.76ms. Allocated memory is still 117.4MB. Free memory was 75.3MB in the beginning and 74.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1074.08ms. Allocated memory is still 117.4MB. Free memory was 74.0MB in the beginning and 68.9MB in the end (delta: 5.1MB). Peak memory consumption was 46.6MB. Max. memory is 16.1GB. * TraceAbstraction took 139663.86ms. Allocated memory was 117.4MB in the beginning and 1.1GB in the end (delta: 939.5MB). Free memory was 68.9MB in the beginning and 1.0GB in the end (delta: -943.4MB). Peak memory consumption was 614.5MB. Max. memory is 16.1GB. * Witness Printer took 145.51ms. Allocated memory is still 1.1GB. Free memory was 1.0GB in the beginning and 1.0GB in the end (delta: 8.3MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 61]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 61]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 208]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 208]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 208]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 208]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 212]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 212]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 212]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 212]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 217]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 217]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 217]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 217]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 14 error locations. Started 1 CEGAR loops. OverallTime: 139.3s, OverallIterations: 11, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 529 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 529 mSDsluCounter, 523 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 258 mSDsCounter, 48 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 721 IncrementalHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 48 mSolverCounterUnsat, 265 mSDtfsCounter, 721 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 253 GetRequests, 142 SyntacticMatches, 4 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1315 ImplicationChecksByTransitivity, 93.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=92occurred in iteration=6, InterpolantAutomatonStates: 54, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 134 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 30.2s InterpolantComputationTime, 235 NumberOfCodeBlocks, 235 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 292 ConstructedInterpolants, 0 QuantifiedInterpolants, 11962 SizeOfPredicates, 69 NumberOfNonLiveVariables, 398 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 17 InterpolantComputations, 8 PerfectInterpolantSequences, 14/63 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 14 specifications checked. All of them hold - InvariantResult [Line: 260]: Loop Invariant Derived loop invariant: ((((((st2 == 1) || (st2 == 0)) && (mode1 == 1)) && ((st3 == 0) || (st3 == 1))) && ((st1 == 1) || (st1 == 0))) || (((((st2 == 1) || (st2 == 0)) && (mode1 == 0)) && ((st3 == 0) || (st3 == 1))) && ((st1 == 1) || (st1 == 0)))) RESULT: Ultimate proved your program to be correct! [2024-11-14 02:45:17,581 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2081e19c-16ec-4344-b41f-323252d364ae/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE