./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound10.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_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/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_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/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_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/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 1af9610c3f2ac44e456633c84d2e8d0495857443026005d5daf994731366c726 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:41:20,062 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:41:20,190 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-14 04:41:20,201 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:41:20,201 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:41:20,245 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:41:20,246 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:41:20,246 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:41:20,248 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:41:20,248 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:41:20,249 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:41:20,250 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:41:20,250 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:41:20,250 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 04:41:20,251 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:41:20,251 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:41:20,251 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 04:41:20,251 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 04:41:20,251 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:41:20,252 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 04:41:20,252 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 04:41:20,252 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 04:41:20,253 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:41:20,253 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:41:20,253 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 04:41:20,253 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:41:20,253 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 04:41:20,254 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:41:20,254 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:41:20,254 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:41:20,254 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:41:20,254 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:41:20,254 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 04:41:20,255 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 04:41:20,255 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 04:41:20,255 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:41:20,255 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:41:20,255 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:41:20,255 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:41:20,255 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:41:20,255 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:41:20,255 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:41:20,255 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:41:20,256 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:41:20,256 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 04:41:20,256 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 04:41:20,256 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:41:20,256 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:41:20,256 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 04:41:20,256 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_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/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 -> 1af9610c3f2ac44e456633c84d2e8d0495857443026005d5daf994731366c726 [2024-11-14 04:41:20,591 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:41:20,605 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:41:20,608 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:41:20,610 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:41:20,610 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:41:20,612 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound10.c Unable to find full path for "g++" [2024-11-14 04:41:22,971 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:41:23,267 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:41:23,268 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound10.c [2024-11-14 04:41:23,275 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/data/664700a64/db8876239be24c87b85e44ab52a18ce4/FLAGba827cd22 [2024-11-14 04:41:23,293 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/data/664700a64/db8876239be24c87b85e44ab52a18ce4 [2024-11-14 04:41:23,296 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:41:23,298 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:41:23,300 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:41:23,301 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:41:23,306 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:41:23,307 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:41:23" (1/1) ... [2024-11-14 04:41:23,309 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@198e5ac6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:41:23, skipping insertion in model container [2024-11-14 04:41:23,309 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:41:23" (1/1) ... [2024-11-14 04:41:23,329 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:41:23,597 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:41:23,618 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:41:23,663 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:41:23,685 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:41:23,686 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:41:23 WrapperNode [2024-11-14 04:41:23,687 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:41:23,689 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:41:23,689 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:41:23,689 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:41:23,701 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:41:23" (1/1) ... [2024-11-14 04:41:23,709 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:41:23" (1/1) ... [2024-11-14 04:41:23,750 INFO L138 Inliner]: procedures = 14, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 147 [2024-11-14 04:41:23,751 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:41:23,752 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:41:23,752 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:41:23,753 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:41:23,765 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:41:23" (1/1) ... [2024-11-14 04:41:23,766 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:41:23" (1/1) ... [2024-11-14 04:41:23,770 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:41:23" (1/1) ... [2024-11-14 04:41:23,770 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:41:23" (1/1) ... [2024-11-14 04:41:23,779 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:41:23" (1/1) ... [2024-11-14 04:41:23,791 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:41:23" (1/1) ... [2024-11-14 04:41:23,793 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:41:23" (1/1) ... [2024-11-14 04:41:23,794 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:41:23" (1/1) ... [2024-11-14 04:41:23,799 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:41:23,800 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:41:23,800 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:41:23,800 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:41:23,805 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:41:23" (1/1) ... [2024-11-14 04:41:23,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:41:23,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:41:23,854 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:41:23,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:41:23,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:41:23,897 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 04:41:23,897 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 04:41:23,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 04:41:23,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:41:23,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:41:23,897 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-14 04:41:23,898 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-14 04:41:23,992 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:41:23,994 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:41:25,404 INFO L? ?]: Removed 196 outVars from TransFormulas that were not future-live. [2024-11-14 04:41:25,404 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:41:25,460 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:41:25,461 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-14 04:41:25,461 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:41:25 BoogieIcfgContainer [2024-11-14 04:41:25,461 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:41:25,465 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:41:25,465 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:41:25,471 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:41:25,472 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:41:23" (1/3) ... [2024-11-14 04:41:25,472 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1006c05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:41:25, skipping insertion in model container [2024-11-14 04:41:25,473 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:41:23" (2/3) ... [2024-11-14 04:41:25,473 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1006c05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:41:25, skipping insertion in model container [2024-11-14 04:41:25,473 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:41:25" (3/3) ... [2024-11-14 04:41:25,475 INFO L112 eAbstractionObserver]: Analyzing ICFG egcd2-ll_valuebound10.c [2024-11-14 04:41:25,495 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:41:25,498 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG egcd2-ll_valuebound10.c that has 3 procedures, 154 locations, 1 initial locations, 2 loop locations, and 64 error locations. [2024-11-14 04:41:25,591 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:41:25,610 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;@4794012d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:41:25,611 INFO L334 AbstractCegarLoop]: Starting to check reachability of 64 error locations. [2024-11-14 04:41:25,616 INFO L276 IsEmpty]: Start isEmpty. Operand has 154 states, 75 states have (on average 1.9066666666666667) internal successors, (143), 140 states have internal predecessors, (143), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-14 04:41:25,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-14 04:41:25,628 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:41:25,629 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:41:25,629 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-14 04:41:25,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:41:25,636 INFO L85 PathProgramCache]: Analyzing trace with hash -198909868, now seen corresponding path program 1 times [2024-11-14 04:41:25,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:41:25,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347960684] [2024-11-14 04:41:25,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:41:25,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:41:25,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:41:25,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1053292355] [2024-11-14 04:41:25,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:41:25,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:41:25,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:41:25,821 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:41:25,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 04:41:25,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:41:25,935 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-14 04:41:25,943 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:41:26,183 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-14 04:41:26,185 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:41:26,185 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:41:26,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347960684] [2024-11-14 04:41:26,186 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:41:26,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1053292355] [2024-11-14 04:41:26,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1053292355] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:41:26,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:41:26,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 04:41:26,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408006835] [2024-11-14 04:41:26,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:41:26,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 04:41:26,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:41:26,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 04:41:26,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-14 04:41:26,228 INFO L87 Difference]: Start difference. First operand has 154 states, 75 states have (on average 1.9066666666666667) internal successors, (143), 140 states have internal predecessors, (143), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 6 states, 2 states have (on average 3.0) internal successors, (6), 4 states have internal predecessors, (6), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 04:41:27,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:41:27,044 INFO L93 Difference]: Finished difference Result 289 states and 310 transitions. [2024-11-14 04:41:27,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 04:41:27,047 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 2 states have (on average 3.0) internal successors, (6), 4 states have internal predecessors, (6), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 16 [2024-11-14 04:41:27,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:41:27,058 INFO L225 Difference]: With dead ends: 289 [2024-11-14 04:41:27,059 INFO L226 Difference]: Without dead ends: 148 [2024-11-14 04:41:27,063 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-14 04:41:27,067 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 198 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 04:41:27,068 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 146 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 04:41:27,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-11-14 04:41:27,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2024-11-14 04:41:27,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 74 states have (on average 1.837837837837838) internal successors, (136), 135 states have internal predecessors, (136), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-14 04:41:27,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 158 transitions. [2024-11-14 04:41:27,139 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 158 transitions. Word has length 16 [2024-11-14 04:41:27,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:41:27,141 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 158 transitions. [2024-11-14 04:41:27,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 2 states have (on average 3.0) internal successors, (6), 4 states have internal predecessors, (6), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 04:41:27,143 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 158 transitions. [2024-11-14 04:41:27,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-14 04:41:27,145 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:41:27,145 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:41:27,165 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 04:41:27,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-14 04:41:27,346 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-14 04:41:27,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:41:27,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1871238570, now seen corresponding path program 1 times [2024-11-14 04:41:27,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:41:27,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570467970] [2024-11-14 04:41:27,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:41:27,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:41:27,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:41:27,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1303704608] [2024-11-14 04:41:27,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:41:27,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:41:27,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:41:27,390 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:41:27,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 04:41:27,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:41:27,466 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-14 04:41:27,468 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:41:27,664 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-14 04:41:27,664 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:41:28,132 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:41:28,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570467970] [2024-11-14 04:41:28,132 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:41:28,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1303704608] [2024-11-14 04:41:28,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1303704608] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:41:28,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1694473470] [2024-11-14 04:41:28,161 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2024-11-14 04:41:28,162 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:41:28,166 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:41:28,175 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:41:28,176 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:41:29,040 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:41:29,043 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:41:30,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1694473470] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:41:30,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:41:30,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [5] total 14 [2024-11-14 04:41:30,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068544044] [2024-11-14 04:41:30,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:41:30,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 04:41:30,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:41:30,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 04:41:30,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2024-11-14 04:41:30,077 INFO L87 Difference]: Start difference. First operand 148 states and 158 transitions. Second operand has 11 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-14 04:41:31,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:41:31,467 INFO L93 Difference]: Finished difference Result 246 states and 279 transitions. [2024-11-14 04:41:31,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-14 04:41:31,468 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 17 [2024-11-14 04:41:31,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:41:31,470 INFO L225 Difference]: With dead ends: 246 [2024-11-14 04:41:31,471 INFO L226 Difference]: Without dead ends: 198 [2024-11-14 04:41:31,471 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2024-11-14 04:41:31,472 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 258 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-14 04:41:31,473 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 69 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-14 04:41:31,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2024-11-14 04:41:31,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 195. [2024-11-14 04:41:31,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 118 states have (on average 1.694915254237288) internal successors, (200), 177 states have internal predecessors, (200), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-14 04:41:31,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 230 transitions. [2024-11-14 04:41:31,516 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 230 transitions. Word has length 17 [2024-11-14 04:41:31,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:41:31,517 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 230 transitions. [2024-11-14 04:41:31,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-14 04:41:31,517 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 230 transitions. [2024-11-14 04:41:31,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-14 04:41:31,521 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:41:31,524 INFO L215 NwaCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:41:31,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-14 04:41:31,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:41:31,725 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-14 04:41:31,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:41:31,726 INFO L85 PathProgramCache]: Analyzing trace with hash -56274717, now seen corresponding path program 1 times [2024-11-14 04:41:31,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:41:31,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747734357] [2024-11-14 04:41:31,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:41:31,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:41:31,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:41:31,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [908819156] [2024-11-14 04:41:31,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:41:31,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:41:31,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:41:31,800 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:41:31,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 04:41:31,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:41:31,869 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 04:41:31,871 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:41:31,889 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-14 04:41:31,889 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:41:31,890 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:41:31,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747734357] [2024-11-14 04:41:31,890 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:41:31,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [908819156] [2024-11-14 04:41:31,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [908819156] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:41:31,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:41:31,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:41:31,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357793244] [2024-11-14 04:41:31,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:41:31,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:41:31,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:41:31,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:41:31,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:41:31,892 INFO L87 Difference]: Start difference. First operand 195 states and 230 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-14 04:41:32,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:41:32,132 INFO L93 Difference]: Finished difference Result 338 states and 409 transitions. [2024-11-14 04:41:32,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:41:32,133 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 29 [2024-11-14 04:41:32,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:41:32,136 INFO L225 Difference]: With dead ends: 338 [2024-11-14 04:41:32,136 INFO L226 Difference]: Without dead ends: 330 [2024-11-14 04:41:32,140 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 27 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 04:41:32,141 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 83 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:41:32,141 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 259 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 04:41:32,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2024-11-14 04:41:32,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 294. [2024-11-14 04:41:32,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 209 states have (on average 1.6602870813397128) internal successors, (347), 268 states have internal predecessors, (347), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-14 04:41:32,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 393 transitions. [2024-11-14 04:41:32,215 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 393 transitions. Word has length 29 [2024-11-14 04:41:32,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:41:32,216 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 393 transitions. [2024-11-14 04:41:32,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-14 04:41:32,216 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 393 transitions. [2024-11-14 04:41:32,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-14 04:41:32,218 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:41:32,218 INFO L215 NwaCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:41:32,243 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-14 04:41:32,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:41:32,419 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-14 04:41:32,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:41:32,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1754574149, now seen corresponding path program 1 times [2024-11-14 04:41:32,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:41:32,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140121960] [2024-11-14 04:41:32,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:41:32,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:41:32,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:41:33,066 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-14 04:41:33,066 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:41:33,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140121960] [2024-11-14 04:41:33,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140121960] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:41:33,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [977055460] [2024-11-14 04:41:33,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:41:33,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:41:33,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:41:33,069 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:41:33,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 04:41:33,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:41:33,156 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 04:41:33,158 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:41:33,291 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-14 04:41:33,291 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:41:33,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [977055460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:41:33,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:41:33,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2024-11-14 04:41:33,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492607291] [2024-11-14 04:41:33,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:41:33,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:41:33,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:41:33,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:41:33,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-14 04:41:33,294 INFO L87 Difference]: Start difference. First operand 294 states and 393 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 04:41:35,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:41:35,103 INFO L93 Difference]: Finished difference Result 329 states and 395 transitions. [2024-11-14 04:41:35,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 04:41:35,106 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 31 [2024-11-14 04:41:35,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:41:35,108 INFO L225 Difference]: With dead ends: 329 [2024-11-14 04:41:35,109 INFO L226 Difference]: Without dead ends: 328 [2024-11-14 04:41:35,109 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-11-14 04:41:35,113 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 362 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-14 04:41:35,113 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 263 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-14 04:41:35,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2024-11-14 04:41:35,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 294. [2024-11-14 04:41:35,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 209 states have (on average 1.6555023923444976) internal successors, (346), 268 states have internal predecessors, (346), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-14 04:41:35,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 392 transitions. [2024-11-14 04:41:35,179 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 392 transitions. Word has length 31 [2024-11-14 04:41:35,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:41:35,179 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 392 transitions. [2024-11-14 04:41:35,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 04:41:35,180 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 392 transitions. [2024-11-14 04:41:35,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-14 04:41:35,180 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:41:35,180 INFO L215 NwaCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:41:35,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-14 04:41:35,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:41:35,381 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-14 04:41:35,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:41:35,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1442776152, now seen corresponding path program 1 times [2024-11-14 04:41:35,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:41:35,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866765890] [2024-11-14 04:41:35,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:41:35,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:41:35,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:41:35,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [15007745] [2024-11-14 04:41:35,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:41:35,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:41:35,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:41:35,436 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:41:35,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 04:41:35,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:41:35,503 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 04:41:35,505 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:41:35,594 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-14 04:41:35,594 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:41:35,594 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:41:35,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866765890] [2024-11-14 04:41:35,594 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:41:35,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15007745] [2024-11-14 04:41:35,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [15007745] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:41:35,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:41:35,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 04:41:35,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347687814] [2024-11-14 04:41:35,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:41:35,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:41:35,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:41:35,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:41:35,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:41:35,597 INFO L87 Difference]: Start difference. First operand 294 states and 392 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 04:41:36,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:41:36,915 INFO L93 Difference]: Finished difference Result 329 states and 394 transitions. [2024-11-14 04:41:36,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 04:41:36,917 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 32 [2024-11-14 04:41:36,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:41:36,920 INFO L225 Difference]: With dead ends: 329 [2024-11-14 04:41:36,920 INFO L226 Difference]: Without dead ends: 328 [2024-11-14 04:41:36,920 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-14 04:41:36,921 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 378 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:41:36,921 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 257 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-14 04:41:36,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2024-11-14 04:41:36,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 294. [2024-11-14 04:41:36,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 209 states have (on average 1.6507177033492824) internal successors, (345), 268 states have internal predecessors, (345), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-14 04:41:36,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 391 transitions. [2024-11-14 04:41:36,952 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 391 transitions. Word has length 32 [2024-11-14 04:41:36,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:41:36,952 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 391 transitions. [2024-11-14 04:41:36,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 04:41:36,952 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 391 transitions. [2024-11-14 04:41:36,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-14 04:41:36,954 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:41:36,954 INFO L215 NwaCegarLoop]: trace histogram [6, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:41:36,979 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-14 04:41:37,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:41:37,155 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-14 04:41:37,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:41:37,156 INFO L85 PathProgramCache]: Analyzing trace with hash 222266990, now seen corresponding path program 1 times [2024-11-14 04:41:37,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:41:37,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245618246] [2024-11-14 04:41:37,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:41:37,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:41:37,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:41:37,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1955576201] [2024-11-14 04:41:37,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:41:37,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:41:37,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:41:37,211 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:41:37,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-14 04:41:37,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:41:37,309 INFO L255 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 04:41:37,311 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:41:37,581 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-14 04:41:37,582 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:41:37,583 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:41:37,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245618246] [2024-11-14 04:41:37,583 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:41:37,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1955576201] [2024-11-14 04:41:37,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1955576201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:41:37,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:41:37,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:41:37,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97064657] [2024-11-14 04:41:37,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:41:37,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:41:37,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:41:37,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:41:37,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:41:37,587 INFO L87 Difference]: Start difference. First operand 294 states and 391 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-14 04:41:37,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:41:37,976 INFO L93 Difference]: Finished difference Result 323 states and 417 transitions. [2024-11-14 04:41:37,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:41:37,976 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 56 [2024-11-14 04:41:37,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:41:37,979 INFO L225 Difference]: With dead ends: 323 [2024-11-14 04:41:37,979 INFO L226 Difference]: Without dead ends: 322 [2024-11-14 04:41:37,979 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 53 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 04:41:37,984 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 88 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 04:41:37,985 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 213 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 04:41:37,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2024-11-14 04:41:38,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 294. [2024-11-14 04:41:38,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 209 states have (on average 1.6411483253588517) internal successors, (343), 268 states have internal predecessors, (343), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-14 04:41:38,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 389 transitions. [2024-11-14 04:41:38,034 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 389 transitions. Word has length 56 [2024-11-14 04:41:38,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:41:38,036 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 389 transitions. [2024-11-14 04:41:38,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-14 04:41:38,036 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 389 transitions. [2024-11-14 04:41:38,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-14 04:41:38,037 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:41:38,038 INFO L215 NwaCegarLoop]: trace histogram [6, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:41:38,063 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-14 04:41:38,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:41:38,242 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-14 04:41:38,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:41:38,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1699657790, now seen corresponding path program 1 times [2024-11-14 04:41:38,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:41:38,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080695451] [2024-11-14 04:41:38,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:41:38,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:41:38,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:41:38,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1605000229] [2024-11-14 04:41:38,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:41:38,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:41:38,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:41:38,294 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:41:38,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-14 04:41:38,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:41:38,372 INFO L255 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 04:41:38,377 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:41:40,868 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-14 04:41:40,868 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:41:40,869 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:41:40,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080695451] [2024-11-14 04:41:40,869 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:41:40,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1605000229] [2024-11-14 04:41:40,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1605000229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:41:40,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:41:40,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:41:40,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076005723] [2024-11-14 04:41:40,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:41:40,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:41:40,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:41:40,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:41:40,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=5, Unknown=1, NotChecked=0, Total=12 [2024-11-14 04:41:40,872 INFO L87 Difference]: Start difference. First operand 294 states and 389 transitions. Second operand has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-14 04:41:42,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:41:44,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:41:46,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:41:48,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:41:49,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:41:49,634 INFO L93 Difference]: Finished difference Result 323 states and 415 transitions. [2024-11-14 04:41:49,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:41:49,635 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 57 [2024-11-14 04:41:49,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:41:49,639 INFO L225 Difference]: With dead ends: 323 [2024-11-14 04:41:49,640 INFO L226 Difference]: Without dead ends: 322 [2024-11-14 04:41:49,641 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=6, Invalid=5, Unknown=1, NotChecked=0, Total=12 [2024-11-14 04:41:49,641 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 43 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2024-11-14 04:41:49,642 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 305 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 4 Unknown, 0 Unchecked, 8.7s Time] [2024-11-14 04:41:49,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2024-11-14 04:41:49,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 294. [2024-11-14 04:41:49,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 209 states have (on average 1.631578947368421) internal successors, (341), 268 states have internal predecessors, (341), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-14 04:41:49,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 387 transitions. [2024-11-14 04:41:49,688 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 387 transitions. Word has length 57 [2024-11-14 04:41:49,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:41:49,688 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 387 transitions. [2024-11-14 04:41:49,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-14 04:41:49,689 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 387 transitions. [2024-11-14 04:41:49,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-14 04:41:49,692 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:41:49,694 INFO L215 NwaCegarLoop]: trace histogram [6, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:41:49,725 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-14 04:41:49,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:41:49,895 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-14 04:41:49,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:41:49,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1149783824, now seen corresponding path program 1 times [2024-11-14 04:41:49,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:41:49,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025149051] [2024-11-14 04:41:49,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:41:49,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:41:49,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:41:49,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2042081630] [2024-11-14 04:41:49,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:41:49,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:41:49,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:41:49,961 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:41:49,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-14 04:41:50,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:41:50,047 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 04:41:50,052 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:41:50,169 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-14 04:41:50,170 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:41:50,170 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:41:50,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025149051] [2024-11-14 04:41:50,170 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:41:50,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2042081630] [2024-11-14 04:41:50,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2042081630] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:41:50,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:41:50,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:41:50,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942733951] [2024-11-14 04:41:50,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:41:50,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:41:50,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:41:50,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:41:50,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:41:50,173 INFO L87 Difference]: Start difference. First operand 294 states and 387 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-14 04:41:51,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:41:51,624 INFO L93 Difference]: Finished difference Result 316 states and 403 transitions. [2024-11-14 04:41:51,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:41:51,625 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 58 [2024-11-14 04:41:51,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:41:51,627 INFO L225 Difference]: With dead ends: 316 [2024-11-14 04:41:51,627 INFO L226 Difference]: Without dead ends: 312 [2024-11-14 04:41:51,628 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 55 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 04:41:51,630 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 53 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-14 04:41:51,630 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 305 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-14 04:41:51,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2024-11-14 04:41:51,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 297. [2024-11-14 04:41:51,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 212 states have (on average 1.6037735849056605) internal successors, (340), 271 states have internal predecessors, (340), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-14 04:41:51,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 386 transitions. [2024-11-14 04:41:51,679 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 386 transitions. Word has length 58 [2024-11-14 04:41:51,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:41:51,679 INFO L471 AbstractCegarLoop]: Abstraction has 297 states and 386 transitions. [2024-11-14 04:41:51,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-14 04:41:51,680 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 386 transitions. [2024-11-14 04:41:51,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-14 04:41:51,681 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:41:51,681 INFO L215 NwaCegarLoop]: trace histogram [6, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:41:51,708 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-14 04:41:51,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:41:51,881 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-14 04:41:51,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:41:51,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1283560060, now seen corresponding path program 1 times [2024-11-14 04:41:51,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:41:51,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14143518] [2024-11-14 04:41:51,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:41:51,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:41:51,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:41:51,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1179168619] [2024-11-14 04:41:51,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:41:51,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:41:51,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:41:51,912 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:41:51,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-14 04:41:51,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:41:51,989 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 04:41:51,992 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:41:52,164 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-14 04:41:52,164 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:41:52,165 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:41:52,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14143518] [2024-11-14 04:41:52,165 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:41:52,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1179168619] [2024-11-14 04:41:52,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1179168619] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:41:52,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:41:52,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:41:52,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557042539] [2024-11-14 04:41:52,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:41:52,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:41:52,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:41:52,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:41:52,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:41:52,167 INFO L87 Difference]: Start difference. First operand 297 states and 386 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-14 04:41:53,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:41:53,794 INFO L93 Difference]: Finished difference Result 314 states and 397 transitions. [2024-11-14 04:41:53,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:41:53,795 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 59 [2024-11-14 04:41:53,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:41:53,797 INFO L225 Difference]: With dead ends: 314 [2024-11-14 04:41:53,798 INFO L226 Difference]: Without dead ends: 312 [2024-11-14 04:41:53,798 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:41:53,799 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 53 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-14 04:41:53,799 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 308 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-14 04:41:53,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2024-11-14 04:41:53,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 297. [2024-11-14 04:41:53,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 212 states have (on average 1.5849056603773586) internal successors, (336), 271 states have internal predecessors, (336), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-14 04:41:53,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 382 transitions. [2024-11-14 04:41:53,847 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 382 transitions. Word has length 59 [2024-11-14 04:41:53,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:41:53,849 INFO L471 AbstractCegarLoop]: Abstraction has 297 states and 382 transitions. [2024-11-14 04:41:53,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-14 04:41:53,850 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 382 transitions. [2024-11-14 04:41:53,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-14 04:41:53,851 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:41:53,851 INFO L215 NwaCegarLoop]: trace histogram [6, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:41:53,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-14 04:41:54,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-14 04:41:54,052 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-14 04:41:54,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:41:54,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1462867208, now seen corresponding path program 1 times [2024-11-14 04:41:54,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:41:54,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149133408] [2024-11-14 04:41:54,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:41:54,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:41:54,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:41:54,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1972295769] [2024-11-14 04:41:54,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:41:54,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:41:54,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:41:54,098 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:41:54,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-14 04:41:54,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:41:54,188 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-14 04:41:54,191 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:41:54,884 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-14 04:41:54,884 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:41:55,959 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:41:55,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149133408] [2024-11-14 04:41:55,959 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:41:55,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1972295769] [2024-11-14 04:41:55,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1972295769] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:41:55,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1943028570] [2024-11-14 04:41:55,965 INFO L159 IcfgInterpreter]: Started Sifa with 53 locations of interest [2024-11-14 04:41:55,966 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:41:55,966 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:41:55,966 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:41:55,966 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:41:58,162 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 6 for LOIs [2024-11-14 04:41:58,164 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:41:58,166 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:42:02,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1943028570] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:42:02,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:42:02,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [6] total 19 [2024-11-14 04:42:02,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152680320] [2024-11-14 04:42:02,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:42:02,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-14 04:42:02,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:42:02,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-14 04:42:02,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=337, Unknown=0, NotChecked=0, Total=462 [2024-11-14 04:42:02,108 INFO L87 Difference]: Start difference. First operand 297 states and 382 transitions. Second operand has 15 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 6 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) [2024-11-14 04:42:03,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:42:03,705 INFO L93 Difference]: Finished difference Result 311 states and 385 transitions. [2024-11-14 04:42:03,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-14 04:42:03,705 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 6 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) Word has length 66 [2024-11-14 04:42:03,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:42:03,708 INFO L225 Difference]: With dead ends: 311 [2024-11-14 04:42:03,708 INFO L226 Difference]: Without dead ends: 303 [2024-11-14 04:42:03,708 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 91 SyntacticMatches, 34 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=125, Invalid=337, Unknown=0, NotChecked=0, Total=462 [2024-11-14 04:42:03,710 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 546 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 722 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 556 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-14 04:42:03,710 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [556 Valid, 109 Invalid, 770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 722 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-14 04:42:03,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2024-11-14 04:42:03,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 299. [2024-11-14 04:42:03,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 213 states have (on average 1.516431924882629) internal successors, (323), 272 states have internal predecessors, (323), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-14 04:42:03,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 369 transitions. [2024-11-14 04:42:03,742 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 369 transitions. Word has length 66 [2024-11-14 04:42:03,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:42:03,742 INFO L471 AbstractCegarLoop]: Abstraction has 299 states and 369 transitions. [2024-11-14 04:42:03,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 6 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) [2024-11-14 04:42:03,743 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 369 transitions. [2024-11-14 04:42:03,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-14 04:42:03,744 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:42:03,744 INFO L215 NwaCegarLoop]: trace histogram [6, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:42:03,769 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-14 04:42:03,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-14 04:42:03,949 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-14 04:42:03,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:42:03,950 INFO L85 PathProgramCache]: Analyzing trace with hash 179564636, now seen corresponding path program 1 times [2024-11-14 04:42:03,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:42:03,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700810458] [2024-11-14 04:42:03,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:42:03,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:42:03,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:42:04,208 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-14 04:42:04,208 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:42:04,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700810458] [2024-11-14 04:42:04,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700810458] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:42:04,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:42:04,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 04:42:04,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639012146] [2024-11-14 04:42:04,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:42:04,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:42:04,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:42:04,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:42:04,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:42:04,210 INFO L87 Difference]: Start difference. First operand 299 states and 369 transitions. Second operand has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-14 04:42:05,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:42:05,626 INFO L93 Difference]: Finished difference Result 315 states and 380 transitions. [2024-11-14 04:42:05,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:42:05,627 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 81 [2024-11-14 04:42:05,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:42:05,628 INFO L225 Difference]: With dead ends: 315 [2024-11-14 04:42:05,628 INFO L226 Difference]: Without dead ends: 314 [2024-11-14 04:42:05,629 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:42:05,630 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 14 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-14 04:42:05,630 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 490 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-14 04:42:05,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2024-11-14 04:42:05,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 304. [2024-11-14 04:42:05,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 218 states have (on average 1.5045871559633028) internal successors, (328), 277 states have internal predecessors, (328), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-14 04:42:05,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 374 transitions. [2024-11-14 04:42:05,661 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 374 transitions. Word has length 81 [2024-11-14 04:42:05,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:42:05,662 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 374 transitions. [2024-11-14 04:42:05,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-14 04:42:05,663 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 374 transitions. [2024-11-14 04:42:05,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-14 04:42:05,664 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:42:05,665 INFO L215 NwaCegarLoop]: trace histogram [6, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:42:05,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-14 04:42:05,665 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-14 04:42:05,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:42:05,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1271536590, now seen corresponding path program 1 times [2024-11-14 04:42:05,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:42:05,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128599243] [2024-11-14 04:42:05,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:42:05,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:42:05,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:42:05,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [157786662] [2024-11-14 04:42:05,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:42:05,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:42:05,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:42:05,699 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:42:05,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-14 04:42:05,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:42:05,799 INFO L255 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 04:42:05,802 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:42:06,106 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-14 04:42:06,107 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:42:06,107 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:42:06,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128599243] [2024-11-14 04:42:06,107 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:42:06,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [157786662] [2024-11-14 04:42:06,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [157786662] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:42:06,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:42:06,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:42:06,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930399625] [2024-11-14 04:42:06,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:42:06,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:42:06,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:42:06,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:42:06,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:42:06,112 INFO L87 Difference]: Start difference. First operand 304 states and 374 transitions. Second operand has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-14 04:42:06,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:42:06,785 INFO L93 Difference]: Finished difference Result 315 states and 378 transitions. [2024-11-14 04:42:06,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:42:06,786 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 82 [2024-11-14 04:42:06,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:42:06,789 INFO L225 Difference]: With dead ends: 315 [2024-11-14 04:42:06,790 INFO L226 Difference]: Without dead ends: 314 [2024-11-14 04:42:06,791 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:42:06,791 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 16 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 04:42:06,792 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 292 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 04:42:06,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2024-11-14 04:42:06,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 306. [2024-11-14 04:42:06,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 220 states have (on average 1.5) internal successors, (330), 279 states have internal predecessors, (330), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-14 04:42:06,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 376 transitions. [2024-11-14 04:42:06,825 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 376 transitions. Word has length 82 [2024-11-14 04:42:06,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:42:06,825 INFO L471 AbstractCegarLoop]: Abstraction has 306 states and 376 transitions. [2024-11-14 04:42:06,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-14 04:42:06,826 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 376 transitions. [2024-11-14 04:42:06,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-14 04:42:06,827 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:42:06,827 INFO L215 NwaCegarLoop]: trace histogram [6, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:42:06,855 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-14 04:42:07,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-14 04:42:07,028 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-14 04:42:07,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:42:07,029 INFO L85 PathProgramCache]: Analyzing trace with hash -2052868608, now seen corresponding path program 1 times [2024-11-14 04:42:07,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:42:07,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133719603] [2024-11-14 04:42:07,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:42:07,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:42:07,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:42:07,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [30761750] [2024-11-14 04:42:07,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:42:07,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:42:07,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:42:07,065 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:42:07,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-14 04:42:07,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:42:07,166 INFO L255 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 04:42:07,169 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:42:07,467 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-14 04:42:07,467 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:42:07,581 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:42:07,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133719603] [2024-11-14 04:42:07,582 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:42:07,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [30761750] [2024-11-14 04:42:07,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [30761750] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:42:07,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [344866506] [2024-11-14 04:42:07,586 INFO L159 IcfgInterpreter]: Started Sifa with 66 locations of interest [2024-11-14 04:42:07,586 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:42:07,587 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:42:07,587 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:42:07,587 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:42:15,587 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-14 04:42:15,590 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:42:15,592 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:42:20,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [344866506] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:42:20,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:42:20,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [6] total 28 [2024-11-14 04:42:20,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931473819] [2024-11-14 04:42:20,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:42:20,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-14 04:42:20,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:42:20,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-14 04:42:20,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=219, Invalid=711, Unknown=0, NotChecked=0, Total=930 [2024-11-14 04:42:20,108 INFO L87 Difference]: Start difference. First operand 306 states and 376 transitions. Second operand has 24 states, 16 states have (on average 3.375) internal successors, (54), 17 states have internal predecessors, (54), 9 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-14 04:42:23,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:42:23,328 INFO L93 Difference]: Finished difference Result 316 states and 378 transitions. [2024-11-14 04:42:23,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-14 04:42:23,329 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 16 states have (on average 3.375) internal successors, (54), 17 states have internal predecessors, (54), 9 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 83 [2024-11-14 04:42:23,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:42:23,331 INFO L225 Difference]: With dead ends: 316 [2024-11-14 04:42:23,332 INFO L226 Difference]: Without dead ends: 308 [2024-11-14 04:42:23,332 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 127 SyntacticMatches, 17 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=292, Invalid=830, Unknown=0, NotChecked=0, Total=1122 [2024-11-14 04:42:23,333 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 343 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 1430 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 1465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-14 04:42:23,333 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [348 Valid, 135 Invalid, 1465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1430 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-14 04:42:23,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2024-11-14 04:42:23,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 302. [2024-11-14 04:42:23,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 216 states have (on average 1.4722222222222223) internal successors, (318), 275 states have internal predecessors, (318), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-14 04:42:23,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 364 transitions. [2024-11-14 04:42:23,366 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 364 transitions. Word has length 83 [2024-11-14 04:42:23,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:42:23,366 INFO L471 AbstractCegarLoop]: Abstraction has 302 states and 364 transitions. [2024-11-14 04:42:23,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 16 states have (on average 3.375) internal successors, (54), 17 states have internal predecessors, (54), 9 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-14 04:42:23,367 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 364 transitions. [2024-11-14 04:42:23,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-14 04:42:23,368 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:42:23,368 INFO L215 NwaCegarLoop]: trace histogram [6, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:42:23,393 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-14 04:42:23,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-14 04:42:23,572 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-14 04:42:23,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:42:23,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1264827168, now seen corresponding path program 1 times [2024-11-14 04:42:23,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:42:23,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679265170] [2024-11-14 04:42:23,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:42:23,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:42:23,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:42:23,809 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-14 04:42:23,809 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:42:23,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679265170] [2024-11-14 04:42:23,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679265170] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:42:23,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:42:23,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 04:42:23,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534633196] [2024-11-14 04:42:23,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:42:23,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:42:23,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:42:23,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:42:23,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:42:23,811 INFO L87 Difference]: Start difference. First operand 302 states and 364 transitions. Second operand has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-14 04:42:24,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:42:24,191 INFO L93 Difference]: Finished difference Result 311 states and 374 transitions. [2024-11-14 04:42:24,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:42:24,192 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 85 [2024-11-14 04:42:24,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:42:24,193 INFO L225 Difference]: With dead ends: 311 [2024-11-14 04:42:24,193 INFO L226 Difference]: Without dead ends: 310 [2024-11-14 04:42:24,194 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:42:24,194 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 9 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 04:42:24,195 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 415 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 04:42:24,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2024-11-14 04:42:24,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 307. [2024-11-14 04:42:24,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 221 states have (on average 1.4705882352941178) internal successors, (325), 280 states have internal predecessors, (325), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-14 04:42:24,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 371 transitions. [2024-11-14 04:42:24,230 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 371 transitions. Word has length 85 [2024-11-14 04:42:24,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:42:24,230 INFO L471 AbstractCegarLoop]: Abstraction has 307 states and 371 transitions. [2024-11-14 04:42:24,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-14 04:42:24,231 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 371 transitions. [2024-11-14 04:42:24,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-14 04:42:24,232 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:42:24,232 INFO L215 NwaCegarLoop]: trace histogram [6, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:42:24,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-14 04:42:24,234 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-14 04:42:24,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:42:24,234 INFO L85 PathProgramCache]: Analyzing trace with hash -554936366, now seen corresponding path program 1 times [2024-11-14 04:42:24,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:42:24,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010046022] [2024-11-14 04:42:24,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:42:24,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:42:24,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:42:24,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [587139896] [2024-11-14 04:42:24,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:42:24,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:42:24,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:42:24,272 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:42:24,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-14 04:42:24,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:42:24,358 INFO L255 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 04:42:24,361 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:42:24,626 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-14 04:42:24,626 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:42:24,627 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:42:24,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010046022] [2024-11-14 04:42:24,627 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:42:24,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [587139896] [2024-11-14 04:42:24,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [587139896] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:42:24,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:42:24,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 04:42:24,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182798286] [2024-11-14 04:42:24,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:42:24,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:42:24,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:42:24,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:42:24,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:42:24,629 INFO L87 Difference]: Start difference. First operand 307 states and 371 transitions. Second operand has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-14 04:42:25,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:42:25,000 INFO L93 Difference]: Finished difference Result 314 states and 378 transitions. [2024-11-14 04:42:25,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:42:25,001 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 86 [2024-11-14 04:42:25,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:42:25,003 INFO L225 Difference]: With dead ends: 314 [2024-11-14 04:42:25,003 INFO L226 Difference]: Without dead ends: 313 [2024-11-14 04:42:25,004 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:42:25,004 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 52 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 04:42:25,008 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 482 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 04:42:25,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2024-11-14 04:42:25,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 309. [2024-11-14 04:42:25,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 223 states have (on average 1.4663677130044843) internal successors, (327), 282 states have internal predecessors, (327), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-14 04:42:25,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 373 transitions. [2024-11-14 04:42:25,045 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 373 transitions. Word has length 86 [2024-11-14 04:42:25,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:42:25,046 INFO L471 AbstractCegarLoop]: Abstraction has 309 states and 373 transitions. [2024-11-14 04:42:25,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-14 04:42:25,046 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 373 transitions. [2024-11-14 04:42:25,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-14 04:42:25,050 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:42:25,050 INFO L215 NwaCegarLoop]: trace histogram [6, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:42:25,075 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-14 04:42:25,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-14 04:42:25,251 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-14 04:42:25,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:42:25,252 INFO L85 PathProgramCache]: Analyzing trace with hash -780101374, now seen corresponding path program 1 times [2024-11-14 04:42:25,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:42:25,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5712110] [2024-11-14 04:42:25,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:42:25,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:42:25,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:42:25,573 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-14 04:42:25,573 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:42:25,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5712110] [2024-11-14 04:42:25,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5712110] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:42:25,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1461415886] [2024-11-14 04:42:25,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:42:25,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:42:25,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:42:25,576 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:42:25,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-14 04:42:25,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:42:25,664 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 04:42:25,667 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:42:25,826 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-14 04:42:25,826 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:42:26,170 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-14 04:42:26,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1461415886] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:42:26,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2059550307] [2024-11-14 04:42:26,174 INFO L159 IcfgInterpreter]: Started Sifa with 72 locations of interest [2024-11-14 04:42:26,174 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:42:26,175 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:42:26,175 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:42:26,175 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:42:30,698 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-14 04:42:30,700 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:42:30,702 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:42:42,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [2059550307] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:42:42,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:42:42,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [7, 5, 5] total 37 [2024-11-14 04:42:42,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828577355] [2024-11-14 04:42:42,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:42:42,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-14 04:42:42,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:42:42,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-14 04:42:42,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=277, Invalid=1055, Unknown=0, NotChecked=0, Total=1332 [2024-11-14 04:42:42,813 INFO L87 Difference]: Start difference. First operand 309 states and 373 transitions. Second operand has 25 states, 18 states have (on average 3.3333333333333335) internal successors, (60), 18 states have internal predecessors, (60), 9 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-14 04:42:46,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:42:46,878 INFO L93 Difference]: Finished difference Result 486 states and 598 transitions. [2024-11-14 04:42:46,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-14 04:42:46,879 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 18 states have (on average 3.3333333333333335) internal successors, (60), 18 states have internal predecessors, (60), 9 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 9 states have call successors, (10) Word has length 89 [2024-11-14 04:42:46,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:42:46,882 INFO L225 Difference]: With dead ends: 486 [2024-11-14 04:42:46,882 INFO L226 Difference]: Without dead ends: 419 [2024-11-14 04:42:46,883 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 201 SyntacticMatches, 36 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 949 ImplicationChecksByTransitivity, 12.7s TimeCoverageRelationStatistics Valid=335, Invalid=1147, Unknown=0, NotChecked=0, Total=1482 [2024-11-14 04:42:46,883 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 1078 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 1261 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1096 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 1435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 1261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-14 04:42:46,884 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1096 Valid, 108 Invalid, 1435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 1261 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-14 04:42:46,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2024-11-14 04:42:46,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 403. [2024-11-14 04:42:46,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 309 states have (on average 1.3689320388349515) internal successors, (423), 368 states have internal predecessors, (423), 31 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-14 04:42:46,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 485 transitions. [2024-11-14 04:42:46,927 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 485 transitions. Word has length 89 [2024-11-14 04:42:46,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:42:46,928 INFO L471 AbstractCegarLoop]: Abstraction has 403 states and 485 transitions. [2024-11-14 04:42:46,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 18 states have (on average 3.3333333333333335) internal successors, (60), 18 states have internal predecessors, (60), 9 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-14 04:42:46,928 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 485 transitions. [2024-11-14 04:42:46,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-14 04:42:46,930 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:42:46,930 INFO L215 NwaCegarLoop]: trace histogram [8, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:42:46,955 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-14 04:42:47,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-14 04:42:47,134 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-14 04:42:47,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:42:47,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1076341755, now seen corresponding path program 1 times [2024-11-14 04:42:47,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:42:47,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148589326] [2024-11-14 04:42:47,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:42:47,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:42:47,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:42:47,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1462799147] [2024-11-14 04:42:47,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:42:47,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:42:47,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:42:47,187 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:42:47,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-14 04:42:47,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:42:47,294 INFO L255 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 04:42:47,299 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:42:47,643 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-11-14 04:42:47,643 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:42:47,643 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:42:47,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148589326] [2024-11-14 04:42:47,644 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:42:47,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1462799147] [2024-11-14 04:42:47,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1462799147] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:42:47,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:42:47,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 04:42:47,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048808652] [2024-11-14 04:42:47,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:42:47,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:42:47,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:42:47,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:42:47,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:42:47,645 INFO L87 Difference]: Start difference. First operand 403 states and 485 transitions. Second operand has 5 states, 4 states have (on average 24.25) internal successors, (97), 5 states have internal predecessors, (97), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-14 04:42:48,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:42:48,164 INFO L93 Difference]: Finished difference Result 418 states and 500 transitions. [2024-11-14 04:42:48,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:42:48,164 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 24.25) internal successors, (97), 5 states have internal predecessors, (97), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 137 [2024-11-14 04:42:48,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:42:48,167 INFO L225 Difference]: With dead ends: 418 [2024-11-14 04:42:48,167 INFO L226 Difference]: Without dead ends: 417 [2024-11-14 04:42:48,167 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:42:48,168 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 25 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 04:42:48,168 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 271 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 04:42:48,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-11-14 04:42:48,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 403. [2024-11-14 04:42:48,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 309 states have (on average 1.3656957928802589) internal successors, (422), 368 states have internal predecessors, (422), 31 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-14 04:42:48,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 484 transitions. [2024-11-14 04:42:48,214 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 484 transitions. Word has length 137 [2024-11-14 04:42:48,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:42:48,214 INFO L471 AbstractCegarLoop]: Abstraction has 403 states and 484 transitions. [2024-11-14 04:42:48,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 24.25) internal successors, (97), 5 states have internal predecessors, (97), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-14 04:42:48,215 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 484 transitions. [2024-11-14 04:42:48,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-14 04:42:48,216 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:42:48,216 INFO L215 NwaCegarLoop]: trace histogram [8, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:42:48,237 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-14 04:42:48,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-14 04:42:48,417 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-14 04:42:48,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:42:48,417 INFO L85 PathProgramCache]: Analyzing trace with hash -993143789, now seen corresponding path program 1 times [2024-11-14 04:42:48,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:42:48,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338589655] [2024-11-14 04:42:48,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:42:48,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:42:48,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:42:48,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1089798495] [2024-11-14 04:42:48,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:42:48,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:42:48,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:42:48,459 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:42:48,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-14 04:42:48,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:42:48,563 INFO L255 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 04:42:48,566 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:42:48,916 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-11-14 04:42:48,916 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:42:49,851 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:42:49,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338589655] [2024-11-14 04:42:49,852 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:42:49,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1089798495] [2024-11-14 04:42:49,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1089798495] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:42:49,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1675572044] [2024-11-14 04:42:49,855 INFO L159 IcfgInterpreter]: Started Sifa with 73 locations of interest [2024-11-14 04:42:49,855 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:42:49,855 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:42:49,856 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:42:49,856 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:42:55,279 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-14 04:42:55,281 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:42:55,282 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:43:01,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1675572044] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:43:01,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:43:01,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [4] total 29 [2024-11-14 04:43:01,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586633675] [2024-11-14 04:43:01,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:43:01,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-14 04:43:01,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:43:01,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-14 04:43:01,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=780, Unknown=0, NotChecked=0, Total=992 [2024-11-14 04:43:01,016 INFO L87 Difference]: Start difference. First operand 403 states and 484 transitions. Second operand has 27 states, 19 states have (on average 3.210526315789474) internal successors, (61), 20 states have internal predecessors, (61), 9 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-14 04:43:04,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:43:04,216 INFO L93 Difference]: Finished difference Result 417 states and 497 transitions. [2024-11-14 04:43:04,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-14 04:43:04,218 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 19 states have (on average 3.210526315789474) internal successors, (61), 20 states have internal predecessors, (61), 9 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 138 [2024-11-14 04:43:04,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:43:04,221 INFO L225 Difference]: With dead ends: 417 [2024-11-14 04:43:04,221 INFO L226 Difference]: Without dead ends: 415 [2024-11-14 04:43:04,222 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 280 SyntacticMatches, 28 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 689 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=330, Invalid=1076, Unknown=0, NotChecked=0, Total=1406 [2024-11-14 04:43:04,223 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 638 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 1194 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 643 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 1240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:43:04,223 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [643 Valid, 104 Invalid, 1240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1194 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-14 04:43:04,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2024-11-14 04:43:04,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 404. [2024-11-14 04:43:04,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 310 states have (on average 1.3612903225806452) internal successors, (422), 369 states have internal predecessors, (422), 31 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-14 04:43:04,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 484 transitions. [2024-11-14 04:43:04,275 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 484 transitions. Word has length 138 [2024-11-14 04:43:04,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:43:04,277 INFO L471 AbstractCegarLoop]: Abstraction has 404 states and 484 transitions. [2024-11-14 04:43:04,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 19 states have (on average 3.210526315789474) internal successors, (61), 20 states have internal predecessors, (61), 9 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-14 04:43:04,277 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 484 transitions. [2024-11-14 04:43:04,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-14 04:43:04,280 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:43:04,281 INFO L215 NwaCegarLoop]: trace histogram [8, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:43:04,305 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-14 04:43:04,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-14 04:43:04,482 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-14 04:43:04,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:43:04,482 INFO L85 PathProgramCache]: Analyzing trace with hash 556051615, now seen corresponding path program 1 times [2024-11-14 04:43:04,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:43:04,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186989205] [2024-11-14 04:43:04,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:43:04,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:43:04,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:43:04,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [632571980] [2024-11-14 04:43:04,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:43:04,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:43:04,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:43:04,523 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:43:04,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-14 04:43:04,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:43:04,627 INFO L255 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-14 04:43:04,631 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:43:05,969 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 1 proven. 48 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-11-14 04:43:05,969 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:43:08,268 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:43:08,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186989205] [2024-11-14 04:43:08,268 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:43:08,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [632571980] [2024-11-14 04:43:08,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [632571980] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:43:08,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [61070455] [2024-11-14 04:43:08,271 INFO L159 IcfgInterpreter]: Started Sifa with 76 locations of interest [2024-11-14 04:43:08,275 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:43:08,276 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:43:08,276 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:43:08,276 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:43:18,641 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 32 for LOIs [2024-11-14 04:43:18,647 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:43:18,649 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:43:23,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [61070455] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:43:23,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:43:23,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [11] total 34 [2024-11-14 04:43:23,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069452704] [2024-11-14 04:43:23,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:43:23,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-14 04:43:23,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:43:23,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-14 04:43:23,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=223, Invalid=1258, Unknown=1, NotChecked=0, Total=1482 [2024-11-14 04:43:23,856 INFO L87 Difference]: Start difference. First operand 404 states and 484 transitions. Second operand has 24 states, 16 states have (on average 4.0625) internal successors, (65), 17 states have internal predecessors, (65), 7 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 7 states have call predecessors, (10), 7 states have call successors, (10) [2024-11-14 04:43:24,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:43:24,467 INFO L93 Difference]: Finished difference Result 407 states and 486 transitions. [2024-11-14 04:43:24,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-14 04:43:24,467 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 16 states have (on average 4.0625) internal successors, (65), 17 states have internal predecessors, (65), 7 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 7 states have call predecessors, (10), 7 states have call successors, (10) Word has length 143 [2024-11-14 04:43:24,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:43:24,468 INFO L225 Difference]: With dead ends: 407 [2024-11-14 04:43:24,468 INFO L226 Difference]: Without dead ends: 0 [2024-11-14 04:43:24,469 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 257 SyntacticMatches, 5 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 476 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=249, Invalid=1310, Unknown=1, NotChecked=0, Total=1560 [2024-11-14 04:43:24,470 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 18 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 04:43:24,471 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 26 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 04:43:24,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-14 04:43:24,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-14 04:43:24,471 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 04:43:24,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-14 04:43:24,472 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 143 [2024-11-14 04:43:24,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:43:24,472 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-14 04:43:24,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 16 states have (on average 4.0625) internal successors, (65), 17 states have internal predecessors, (65), 7 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 7 states have call predecessors, (10), 7 states have call successors, (10) [2024-11-14 04:43:24,472 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-14 04:43:24,472 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-14 04:43:24,477 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (63 of 64 remaining) [2024-11-14 04:43:24,478 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (62 of 64 remaining) [2024-11-14 04:43:24,478 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (61 of 64 remaining) [2024-11-14 04:43:24,478 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (60 of 64 remaining) [2024-11-14 04:43:24,478 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (59 of 64 remaining) [2024-11-14 04:43:24,478 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (58 of 64 remaining) [2024-11-14 04:43:24,479 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (57 of 64 remaining) [2024-11-14 04:43:24,479 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (56 of 64 remaining) [2024-11-14 04:43:24,479 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (55 of 64 remaining) [2024-11-14 04:43:24,479 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (54 of 64 remaining) [2024-11-14 04:43:24,479 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (53 of 64 remaining) [2024-11-14 04:43:24,479 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 64 remaining) [2024-11-14 04:43:24,480 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 64 remaining) [2024-11-14 04:43:24,480 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 64 remaining) [2024-11-14 04:43:24,480 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 64 remaining) [2024-11-14 04:43:24,480 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 64 remaining) [2024-11-14 04:43:24,480 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 64 remaining) [2024-11-14 04:43:24,480 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 64 remaining) [2024-11-14 04:43:24,480 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 64 remaining) [2024-11-14 04:43:24,481 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 64 remaining) [2024-11-14 04:43:24,481 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 64 remaining) [2024-11-14 04:43:24,481 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 64 remaining) [2024-11-14 04:43:24,481 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 64 remaining) [2024-11-14 04:43:24,481 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 64 remaining) [2024-11-14 04:43:24,482 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 64 remaining) [2024-11-14 04:43:24,482 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 64 remaining) [2024-11-14 04:43:24,482 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 64 remaining) [2024-11-14 04:43:24,482 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 64 remaining) [2024-11-14 04:43:24,482 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 64 remaining) [2024-11-14 04:43:24,482 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 64 remaining) [2024-11-14 04:43:24,482 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 64 remaining) [2024-11-14 04:43:24,483 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 64 remaining) [2024-11-14 04:43:24,483 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 64 remaining) [2024-11-14 04:43:24,483 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 64 remaining) [2024-11-14 04:43:24,483 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 64 remaining) [2024-11-14 04:43:24,483 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 64 remaining) [2024-11-14 04:43:24,483 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 64 remaining) [2024-11-14 04:43:24,483 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 64 remaining) [2024-11-14 04:43:24,483 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 64 remaining) [2024-11-14 04:43:24,483 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 64 remaining) [2024-11-14 04:43:24,483 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 64 remaining) [2024-11-14 04:43:24,483 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 64 remaining) [2024-11-14 04:43:24,484 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 64 remaining) [2024-11-14 04:43:24,484 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 64 remaining) [2024-11-14 04:43:24,484 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 64 remaining) [2024-11-14 04:43:24,484 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 64 remaining) [2024-11-14 04:43:24,484 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 64 remaining) [2024-11-14 04:43:24,484 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 64 remaining) [2024-11-14 04:43:24,484 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 64 remaining) [2024-11-14 04:43:24,484 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 64 remaining) [2024-11-14 04:43:24,484 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr50ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 64 remaining) [2024-11-14 04:43:24,484 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 64 remaining) [2024-11-14 04:43:24,484 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 64 remaining) [2024-11-14 04:43:24,484 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 64 remaining) [2024-11-14 04:43:24,485 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 64 remaining) [2024-11-14 04:43:24,485 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 64 remaining) [2024-11-14 04:43:24,485 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 64 remaining) [2024-11-14 04:43:24,485 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 64 remaining) [2024-11-14 04:43:24,485 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr58ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 64 remaining) [2024-11-14 04:43:24,485 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr59ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 64 remaining) [2024-11-14 04:43:24,485 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr60ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 64 remaining) [2024-11-14 04:43:24,485 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr61ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 64 remaining) [2024-11-14 04:43:24,485 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr62ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 64 remaining) [2024-11-14 04:43:24,485 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr63ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 64 remaining) [2024-11-14 04:43:24,502 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-14 04:43:24,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:43:24,689 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:43:24,691 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-14 04:43:25,902 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 04:43:25,919 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-14 04:43:25,920 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-14 04:43:25,922 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-14 04:43:25,929 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-14 04:43:25,930 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-14 04:43:25,930 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-14 04:43:25,930 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-14 04:43:25,930 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 04:43:25,930 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 04:43:25,932 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 04:43:25,932 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 04:43:25,933 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 04:43:25,933 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 04:43:25,933 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 04:43:25,933 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 04:43:25,933 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-14 04:43:25,933 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-14 04:43:25,933 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-14 04:43:25,933 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-14 04:43:25,933 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-14 04:43:25,933 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-14 04:43:25,938 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-14 04:43:25,939 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-14 04:43:25,939 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-14 04:43:25,940 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-14 04:43:25,940 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-14 04:43:25,940 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-14 04:43:25,940 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-14 04:43:25,941 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 04:43:25,941 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 04:43:25,941 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 04:43:25,943 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 04:43:25,943 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 04:43:25,943 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 04:43:25,943 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 04:43:25,943 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 04:43:25,944 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-14 04:43:25,944 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-14 04:43:25,944 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-14 04:43:25,944 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-14 04:43:25,944 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-14 04:43:25,944 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-14 04:43:25,950 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-14 04:43:25,950 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-14 04:43:25,955 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 04:43:25 BoogieIcfgContainer [2024-11-14 04:43:25,956 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 04:43:25,957 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 04:43:25,957 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 04:43:25,957 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 04:43:25,958 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:41:25" (3/4) ... [2024-11-14 04:43:25,961 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-14 04:43:25,965 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-14 04:43:25,965 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-14 04:43:25,972 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-11-14 04:43:25,972 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-14 04:43:25,973 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-14 04:43:25,973 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-14 04:43:26,090 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 04:43:26,090 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/witness.yml [2024-11-14 04:43:26,091 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 04:43:26,093 INFO L158 Benchmark]: Toolchain (without parser) took 122793.38ms. Allocated memory was 109.1MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 83.4MB in the beginning and 942.3MB in the end (delta: -858.9MB). Peak memory consumption was 331.9MB. Max. memory is 16.1GB. [2024-11-14 04:43:26,095 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 83.9MB. Free memory is still 41.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:43:26,095 INFO L158 Benchmark]: CACSL2BoogieTranslator took 388.18ms. Allocated memory is still 109.1MB. Free memory was 83.4MB in the beginning and 71.7MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 04:43:26,096 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.60ms. Allocated memory is still 109.1MB. Free memory was 71.7MB in the beginning and 70.1MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 04:43:26,096 INFO L158 Benchmark]: Boogie Preprocessor took 46.85ms. Allocated memory is still 109.1MB. Free memory was 70.1MB in the beginning and 69.3MB in the end (delta: 867.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:43:26,098 INFO L158 Benchmark]: RCFGBuilder took 1661.53ms. Allocated memory is still 109.1MB. Free memory was 69.3MB in the beginning and 42.5MB in the end (delta: 26.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-14 04:43:26,098 INFO L158 Benchmark]: TraceAbstraction took 120490.63ms. Allocated memory was 109.1MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 42.1MB in the beginning and 946.6MB in the end (delta: -904.5MB). Peak memory consumption was 281.6MB. Max. memory is 16.1GB. [2024-11-14 04:43:26,099 INFO L158 Benchmark]: Witness Printer took 134.04ms. Allocated memory is still 1.3GB. Free memory was 946.6MB in the beginning and 942.3MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 04:43:26,103 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 83.9MB. Free memory is still 41.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 388.18ms. Allocated memory is still 109.1MB. Free memory was 83.4MB in the beginning and 71.7MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.60ms. Allocated memory is still 109.1MB. Free memory was 71.7MB in the beginning and 70.1MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.85ms. Allocated memory is still 109.1MB. Free memory was 70.1MB in the beginning and 69.3MB in the end (delta: 867.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1661.53ms. Allocated memory is still 109.1MB. Free memory was 69.3MB in the beginning and 42.5MB in the end (delta: 26.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 120490.63ms. Allocated memory was 109.1MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 42.1MB in the beginning and 946.6MB in the end (delta: -904.5MB). Peak memory consumption was 281.6MB. Max. memory is 16.1GB. * Witness Printer took 134.04ms. Allocated memory is still 1.3GB. Free memory was 946.6MB in the beginning and 942.3MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 54]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 54]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 64]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 64]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 64]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 64]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 67]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 67]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 67]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 67]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 71]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 71]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 71]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 71]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 71]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 71]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 72]: 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 3 procedures, 154 locations, 64 error locations. Started 1 CEGAR loops. OverallTime: 119.1s, OverallIterations: 19, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 34.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 mSolverCounterUnknown, 4341 SdHoareTripleChecker+Valid, 30.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4255 mSDsluCounter, 4557 SdHoareTripleChecker+Invalid, 28.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2764 mSDsCounter, 410 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7544 IncrementalHoareTripleChecker+Invalid, 7958 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 410 mSolverCounterUnsat, 1793 mSDtfsCounter, 7544 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1936 GetRequests, 1589 SyntacticMatches, 122 SemanticMatches, 225 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3011 ImplicationChecksByTransitivity, 40.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=404occurred in iteration=18, InterpolantAutomatonStates: 161, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 19 MinimizatonAttempts, 269 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 14.1s InterpolantComputationTime, 2524 NumberOfCodeBlocks, 2524 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 1532 ConstructedInterpolants, 55 QuantifiedInterpolants, 7948 SizeOfPredicates, 12 NumberOfNonLiveVariables, 2498 ConjunctsInSsa, 119 ConjunctsInUnsatCore, 22 InterpolantComputations, 13 PerfectInterpolantSequences, 944/1054 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 31.4s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 17, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 415, DAG_INTERPRETER_EARLY_EXITS: 5, TOOLS_POST_APPLICATIONS: 935, TOOLS_POST_TIME: 15.8s, TOOLS_POST_CALL_APPLICATIONS: 276, TOOLS_POST_CALL_TIME: 6.6s, TOOLS_POST_RETURN_APPLICATIONS: 226, TOOLS_POST_RETURN_TIME: 4.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 1418, TOOLS_QUANTIFIERELIM_TIME: 25.6s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 1594, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 253, DOMAIN_JOIN_TIME: 2.9s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 9, DOMAIN_WIDEN_TIME: 0.3s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 16, DOMAIN_ISSUBSETEQ_TIME: 0.1s, DOMAIN_ISBOTTOM_APPLICATIONS: 415, DOMAIN_ISBOTTOM_TIME: 1.1s, LOOP_SUMMARIZER_APPLICATIONS: 7, LOOP_SUMMARIZER_CACHE_MISSES: 7, LOOP_SUMMARIZER_OVERALL_TIME: 20.2s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 20.2s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 16, CALL_SUMMARIZER_APPLICATIONS: 226, CALL_SUMMARIZER_CACHE_MISSES: 11, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.4s, DAG_COMPRESSION_PROCESSED_NODES: 26958, DAG_COMPRESSION_RETAINED_NODES: 1245, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 64 specifications checked. All of them hold - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: ((((((((((((((yy == ((long long) y * y)) && (p == 1)) && (a == c)) && (b == y)) && (r == 0)) && (q == 0)) && (k == 0)) && (b <= 10)) && (1 <= x)) && (1 <= xy)) && (a <= 10)) && (xy == ((long long) x * y))) && (a == x)) && (s == 1)) - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: ((((((((((((yy == ((long long) y * y)) && (p == 1)) && (1 <= y)) && (y <= 10)) && (b == y)) && (x <= 10)) && (r == 0)) && (q == 0)) && (1 <= x)) && (xy == ((long long) x * y))) && (a == x)) && (s == 1)) - ProcedureContractResult [Line: 7]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: (cond != 0) RESULT: Ultimate proved your program to be correct! [2024-11-14 04:43:26,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5452861a-b29b-4f3f-8a87-ce0eda5b1d10/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE