./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound50.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_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/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_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/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_e466af36-ed86-4f10-b474-914d9e1927a4/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 3134c54bcf8aadaf562f6870f2277db1ec6f958b1ed6dba99e7410745dba79ba --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:53:01,091 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:53:01,219 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-14 03:53:01,228 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:53:01,228 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:53:01,273 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:53:01,275 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:53:01,276 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:53:01,276 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:53:01,277 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:53:01,278 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:53:01,279 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:53:01,279 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:53:01,279 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:53:01,279 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:53:01,279 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:53:01,279 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:53:01,279 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:53:01,279 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:53:01,280 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:53:01,280 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:53:01,280 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:53:01,280 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:53:01,280 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:53:01,281 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:53:01,281 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:53:01,281 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:53:01,281 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:53:01,281 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:53:01,281 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:53:01,281 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:53:01,281 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:53:01,281 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 03:53:01,281 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 03:53:01,282 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:53:01,282 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:53:01,282 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:53:01,283 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:53:01,283 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:53:01,284 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:53:01,284 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:53:01,284 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:53:01,284 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:53:01,284 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:53:01,285 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:53:01,285 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:53:01,285 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:53:01,285 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:53:01,286 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:53:01,286 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_e466af36-ed86-4f10-b474-914d9e1927a4/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 -> 3134c54bcf8aadaf562f6870f2277db1ec6f958b1ed6dba99e7410745dba79ba [2024-11-14 03:53:01,706 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:53:01,725 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:53:01,730 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:53:01,731 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:53:01,732 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:53:01,733 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound50.c Unable to find full path for "g++" [2024-11-14 03:53:04,061 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:53:04,397 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:53:04,398 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound50.c [2024-11-14 03:53:04,421 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/data/5415703bf/0c224f543afc48a7a3b5844038e5cc9a/FLAGc7867cb7c [2024-11-14 03:53:04,449 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/data/5415703bf/0c224f543afc48a7a3b5844038e5cc9a [2024-11-14 03:53:04,453 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:53:04,456 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:53:04,461 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:53:04,461 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:53:04,468 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:53:04,469 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:53:04" (1/1) ... [2024-11-14 03:53:04,471 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@533e41e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:04, skipping insertion in model container [2024-11-14 03:53:04,474 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:53:04" (1/1) ... [2024-11-14 03:53:04,501 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:53:04,753 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:53:04,774 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:53:04,814 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:53:04,838 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:53:04,839 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:04 WrapperNode [2024-11-14 03:53:04,839 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:53:04,840 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:53:04,841 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:53:04,842 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:53:04,850 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:04" (1/1) ... [2024-11-14 03:53:04,859 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:04" (1/1) ... [2024-11-14 03:53:04,896 INFO L138 Inliner]: procedures = 14, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 118 [2024-11-14 03:53:04,900 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:53:04,900 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:53:04,901 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:53:04,901 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:53:04,911 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:04" (1/1) ... [2024-11-14 03:53:04,912 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:04" (1/1) ... [2024-11-14 03:53:04,914 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:04" (1/1) ... [2024-11-14 03:53:04,918 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:04" (1/1) ... [2024-11-14 03:53:04,922 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:04" (1/1) ... [2024-11-14 03:53:04,929 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:04" (1/1) ... [2024-11-14 03:53:04,934 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:04" (1/1) ... [2024-11-14 03:53:04,935 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:04" (1/1) ... [2024-11-14 03:53:04,937 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:53:04,939 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:53:04,939 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:53:04,939 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:53:04,940 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:04" (1/1) ... [2024-11-14 03:53:04,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:53:04,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:53:04,988 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:53:04,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:53:05,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:53:05,028 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 03:53:05,028 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 03:53:05,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 03:53:05,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:53:05,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:53:05,029 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-14 03:53:05,029 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-14 03:53:05,129 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:53:05,132 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:53:06,333 INFO L? ?]: Removed 157 outVars from TransFormulas that were not future-live. [2024-11-14 03:53:06,334 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:53:06,411 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:53:06,414 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 03:53:06,414 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:53:06 BoogieIcfgContainer [2024-11-14 03:53:06,418 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:53:06,421 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:53:06,425 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:53:06,430 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:53:06,431 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:53:04" (1/3) ... [2024-11-14 03:53:06,432 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dab29d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:53:06, skipping insertion in model container [2024-11-14 03:53:06,432 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:04" (2/3) ... [2024-11-14 03:53:06,434 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dab29d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:53:06, skipping insertion in model container [2024-11-14 03:53:06,434 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:53:06" (3/3) ... [2024-11-14 03:53:06,436 INFO L112 eAbstractionObserver]: Analyzing ICFG egcd-ll_valuebound50.c [2024-11-14 03:53:06,454 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:53:06,456 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG egcd-ll_valuebound50.c that has 3 procedures, 135 locations, 1 initial locations, 1 loop locations, and 56 error locations. [2024-11-14 03:53:06,543 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:53:06,568 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;@2dbcd671, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:53:06,569 INFO L334 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2024-11-14 03:53:06,574 INFO L276 IsEmpty]: Start isEmpty. Operand has 135 states, 65 states have (on average 1.9076923076923078) internal successors, (124), 121 states have internal predecessors, (124), 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 03:53:06,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-14 03:53:06,587 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:53:06,588 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:53:06,589 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 03:53:06,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:53:06,597 INFO L85 PathProgramCache]: Analyzing trace with hash -740955412, now seen corresponding path program 1 times [2024-11-14 03:53:06,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:53:06,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238715547] [2024-11-14 03:53:06,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:06,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:53:06,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:53:06,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [190832024] [2024-11-14 03:53:06,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:06,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:53:06,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:53:06,745 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:53:06,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 03:53:06,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:53:06,851 INFO L255 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 03:53:06,858 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:53:06,948 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 03:53:06,949 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:53:06,950 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:53:06,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238715547] [2024-11-14 03:53:06,951 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:53:06,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [190832024] [2024-11-14 03:53:06,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [190832024] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:53:06,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:53:06,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:53:06,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084317692] [2024-11-14 03:53:06,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:53:06,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:53:06,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:53:06,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:53:06,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:53:06,991 INFO L87 Difference]: Start difference. First operand has 135 states, 65 states have (on average 1.9076923076923078) internal successors, (124), 121 states have internal predecessors, (124), 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) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-14 03:53:07,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:53:07,673 INFO L93 Difference]: Finished difference Result 280 states and 337 transitions. [2024-11-14 03:53:07,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:53:07,676 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 17 [2024-11-14 03:53:07,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:53:07,686 INFO L225 Difference]: With dead ends: 280 [2024-11-14 03:53:07,687 INFO L226 Difference]: Without dead ends: 213 [2024-11-14 03:53:07,691 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:53:07,694 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 74 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 03:53:07,696 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 137 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 03:53:07,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2024-11-14 03:53:07,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 171. [2024-11-14 03:53:07,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 98 states have (on average 1.8775510204081634) internal successors, (184), 153 states have internal predecessors, (184), 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 03:53:07,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 214 transitions. [2024-11-14 03:53:07,760 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 214 transitions. Word has length 17 [2024-11-14 03:53:07,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:53:07,761 INFO L471 AbstractCegarLoop]: Abstraction has 171 states and 214 transitions. [2024-11-14 03:53:07,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-14 03:53:07,761 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 214 transitions. [2024-11-14 03:53:07,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-14 03:53:07,765 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:53:07,765 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:53:07,790 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 03:53:07,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:53:07,969 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 03:53:07,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:53:07,970 INFO L85 PathProgramCache]: Analyzing trace with hash 906421806, now seen corresponding path program 1 times [2024-11-14 03:53:07,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:53:07,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227868885] [2024-11-14 03:53:07,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:07,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:53:08,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:53:08,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [669608987] [2024-11-14 03:53:08,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:08,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:53:08,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:53:08,009 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:53:08,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 03:53:08,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:53:08,079 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:53:08,081 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:53:08,101 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 03:53:08,101 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:53:08,101 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:53:08,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227868885] [2024-11-14 03:53:08,101 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:53:08,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [669608987] [2024-11-14 03:53:08,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [669608987] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:53:08,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:53:08,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:53:08,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404676891] [2024-11-14 03:53:08,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:53:08,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:53:08,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:53:08,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:53:08,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:53:08,104 INFO L87 Difference]: Start difference. First operand 171 states and 214 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-14 03:53:08,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:53:08,752 INFO L93 Difference]: Finished difference Result 272 states and 338 transitions. [2024-11-14 03:53:08,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:53:08,753 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 19 [2024-11-14 03:53:08,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:53:08,755 INFO L225 Difference]: With dead ends: 272 [2024-11-14 03:53:08,756 INFO L226 Difference]: Without dead ends: 264 [2024-11-14 03:53:08,756 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:53:08,758 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 84 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 03:53:08,758 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 191 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 03:53:08,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2024-11-14 03:53:08,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 224. [2024-11-14 03:53:08,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 145 states have (on average 1.813793103448276) internal successors, (263), 200 states have internal predecessors, (263), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-14 03:53:08,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 305 transitions. [2024-11-14 03:53:08,788 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 305 transitions. Word has length 19 [2024-11-14 03:53:08,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:53:08,789 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 305 transitions. [2024-11-14 03:53:08,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-14 03:53:08,789 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 305 transitions. [2024-11-14 03:53:08,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-14 03:53:08,790 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:53:08,790 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:53:08,813 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-14 03:53:08,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:53:08,995 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 03:53:08,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:53:08,995 INFO L85 PathProgramCache]: Analyzing trace with hash -807003792, now seen corresponding path program 1 times [2024-11-14 03:53:08,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:53:08,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644992610] [2024-11-14 03:53:08,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:08,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:53:09,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:53:09,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [468533303] [2024-11-14 03:53:09,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:09,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:53:09,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:53:09,033 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:53:09,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 03:53:09,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:53:09,096 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 03:53:09,099 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:53:09,192 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 03:53:09,192 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:53:09,193 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:53:09,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644992610] [2024-11-14 03:53:09,193 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:53:09,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468533303] [2024-11-14 03:53:09,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [468533303] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:53:09,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:53:09,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:53:09,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665007194] [2024-11-14 03:53:09,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:53:09,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:53:09,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:53:09,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:53:09,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:53:09,197 INFO L87 Difference]: Start difference. First operand 224 states and 305 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-14 03:53:09,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:53:09,957 INFO L93 Difference]: Finished difference Result 258 states and 324 transitions. [2024-11-14 03:53:09,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:53:09,958 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 21 [2024-11-14 03:53:09,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:53:09,960 INFO L225 Difference]: With dead ends: 258 [2024-11-14 03:53:09,960 INFO L226 Difference]: Without dead ends: 244 [2024-11-14 03:53:09,961 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:53:09,965 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 61 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:53:09,965 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 119 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 03:53:09,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2024-11-14 03:53:09,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 189. [2024-11-14 03:53:09,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 115 states have (on average 1.7391304347826086) internal successors, (200), 170 states have internal predecessors, (200), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-14 03:53:09,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 232 transitions. [2024-11-14 03:53:09,989 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 232 transitions. Word has length 21 [2024-11-14 03:53:09,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:53:09,990 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 232 transitions. [2024-11-14 03:53:09,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-14 03:53:09,990 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 232 transitions. [2024-11-14 03:53:09,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-14 03:53:09,991 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:53:09,991 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:53:10,014 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-14 03:53:10,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:53:10,192 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 03:53:10,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:53:10,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1682603225, now seen corresponding path program 1 times [2024-11-14 03:53:10,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:53:10,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968711715] [2024-11-14 03:53:10,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:10,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:53:10,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:53:10,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1483092963] [2024-11-14 03:53:10,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:10,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:53:10,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:53:10,228 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:53:10,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 03:53:10,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:53:10,306 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:53:10,308 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:53:10,355 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 03:53:10,355 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:53:10,355 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:53:10,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968711715] [2024-11-14 03:53:10,355 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:53:10,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1483092963] [2024-11-14 03:53:10,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1483092963] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:53:10,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:53:10,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:53:10,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273240773] [2024-11-14 03:53:10,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:53:10,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:53:10,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:53:10,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:53:10,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:53:10,357 INFO L87 Difference]: Start difference. First operand 189 states and 232 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 03:53:10,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:53:10,744 INFO L93 Difference]: Finished difference Result 351 states and 451 transitions. [2024-11-14 03:53:10,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:53:10,748 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 26 [2024-11-14 03:53:10,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:53:10,751 INFO L225 Difference]: With dead ends: 351 [2024-11-14 03:53:10,751 INFO L226 Difference]: Without dead ends: 343 [2024-11-14 03:53:10,751 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:53:10,752 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 84 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:53:10,753 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 187 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 03:53:10,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2024-11-14 03:53:10,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 268. [2024-11-14 03:53:10,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 185 states have (on average 1.7081081081081082) internal successors, (316), 240 states have internal predecessors, (316), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-14 03:53:10,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 366 transitions. [2024-11-14 03:53:10,781 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 366 transitions. Word has length 26 [2024-11-14 03:53:10,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:53:10,781 INFO L471 AbstractCegarLoop]: Abstraction has 268 states and 366 transitions. [2024-11-14 03:53:10,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 03:53:10,782 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 366 transitions. [2024-11-14 03:53:10,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-14 03:53:10,782 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:53:10,783 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-14 03:53:10,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-14 03:53:10,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:53:10,983 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 03:53:10,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:53:10,984 INFO L85 PathProgramCache]: Analyzing trace with hash -2073993911, now seen corresponding path program 1 times [2024-11-14 03:53:10,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:53:10,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344101831] [2024-11-14 03:53:10,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:10,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:53:11,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:53:11,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1909182437] [2024-11-14 03:53:11,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:11,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:53:11,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:53:11,020 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:53:11,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 03:53:11,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:53:11,109 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:53:11,111 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:53:11,303 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 03:53:11,303 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:53:11,304 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:53:11,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344101831] [2024-11-14 03:53:11,304 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:53:11,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1909182437] [2024-11-14 03:53:11,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1909182437] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:53:11,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:53:11,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:53:11,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300509525] [2024-11-14 03:53:11,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:53:11,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:53:11,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:53:11,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:53:11,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:53:11,308 INFO L87 Difference]: Start difference. First operand 268 states and 366 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 03:53:11,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:53:11,859 INFO L93 Difference]: Finished difference Result 321 states and 431 transitions. [2024-11-14 03:53:11,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:53:11,859 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 28 [2024-11-14 03:53:11,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:53:11,862 INFO L225 Difference]: With dead ends: 321 [2024-11-14 03:53:11,862 INFO L226 Difference]: Without dead ends: 319 [2024-11-14 03:53:11,862 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 25 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 03:53:11,863 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 231 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:53:11,864 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 130 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 03:53:11,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2024-11-14 03:53:11,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 268. [2024-11-14 03:53:11,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 185 states have (on average 1.6864864864864866) internal successors, (312), 240 states have internal predecessors, (312), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-14 03:53:11,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 362 transitions. [2024-11-14 03:53:11,892 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 362 transitions. Word has length 28 [2024-11-14 03:53:11,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:53:11,892 INFO L471 AbstractCegarLoop]: Abstraction has 268 states and 362 transitions. [2024-11-14 03:53:11,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 03:53:11,893 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 362 transitions. [2024-11-14 03:53:11,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-14 03:53:11,894 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:53:11,894 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-14 03:53:11,918 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-14 03:53:12,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:53:12,095 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 03:53:12,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:53:12,096 INFO L85 PathProgramCache]: Analyzing trace with hash 130698266, now seen corresponding path program 1 times [2024-11-14 03:53:12,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:53:12,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745145087] [2024-11-14 03:53:12,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:12,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:53:12,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:53:12,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1008293139] [2024-11-14 03:53:12,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:12,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:53:12,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:53:12,131 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:53:12,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-14 03:53:12,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:53:12,208 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:53:12,209 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:53:12,343 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 03:53:12,344 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:53:12,344 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:53:12,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745145087] [2024-11-14 03:53:12,344 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:53:12,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1008293139] [2024-11-14 03:53:12,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1008293139] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:53:12,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:53:12,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:53:12,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500773905] [2024-11-14 03:53:12,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:53:12,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:53:12,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:53:12,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:53:12,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:53:12,346 INFO L87 Difference]: Start difference. First operand 268 states and 362 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 03:53:12,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:53:12,664 INFO L93 Difference]: Finished difference Result 321 states and 427 transitions. [2024-11-14 03:53:12,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:53:12,665 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 29 [2024-11-14 03:53:12,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:53:12,669 INFO L225 Difference]: With dead ends: 321 [2024-11-14 03:53:12,669 INFO L226 Difference]: Without dead ends: 319 [2024-11-14 03:53:12,669 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 26 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 03:53:12,672 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 229 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:53:12,674 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 130 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 03:53:12,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2024-11-14 03:53:12,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 268. [2024-11-14 03:53:12,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 185 states have (on average 1.664864864864865) internal successors, (308), 240 states have internal predecessors, (308), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-14 03:53:12,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 358 transitions. [2024-11-14 03:53:12,710 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 358 transitions. Word has length 29 [2024-11-14 03:53:12,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:53:12,710 INFO L471 AbstractCegarLoop]: Abstraction has 268 states and 358 transitions. [2024-11-14 03:53:12,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 03:53:12,711 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 358 transitions. [2024-11-14 03:53:12,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-14 03:53:12,712 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:53:12,712 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-14 03:53:12,736 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-14 03:53:12,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:53:12,913 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 03:53:12,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:53:12,913 INFO L85 PathProgramCache]: Analyzing trace with hash -243320981, now seen corresponding path program 1 times [2024-11-14 03:53:12,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:53:12,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689922759] [2024-11-14 03:53:12,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:12,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:53:12,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:53:12,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [679265900] [2024-11-14 03:53:12,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:12,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:53:12,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:53:12,946 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:53:12,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-14 03:53:13,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:53:13,010 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:53:13,012 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:53:13,075 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 03:53:13,076 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:53:13,076 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:53:13,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689922759] [2024-11-14 03:53:13,077 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:53:13,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [679265900] [2024-11-14 03:53:13,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [679265900] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:53:13,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:53:13,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:53:13,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733755476] [2024-11-14 03:53:13,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:53:13,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:53:13,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:53:13,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:53:13,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:53:13,083 INFO L87 Difference]: Start difference. First operand 268 states and 358 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 03:53:14,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:53:14,780 INFO L93 Difference]: Finished difference Result 341 states and 431 transitions. [2024-11-14 03:53:14,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:53:14,783 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 30 [2024-11-14 03:53:14,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:53:14,786 INFO L225 Difference]: With dead ends: 341 [2024-11-14 03:53:14,786 INFO L226 Difference]: Without dead ends: 339 [2024-11-14 03:53:14,786 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 27 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 03:53:14,791 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 85 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:53:14,791 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 203 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-14 03:53:14,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2024-11-14 03:53:14,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 269. [2024-11-14 03:53:14,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 186 states have (on average 1.6451612903225807) internal successors, (306), 241 states have internal predecessors, (306), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-14 03:53:14,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 356 transitions. [2024-11-14 03:53:14,820 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 356 transitions. Word has length 30 [2024-11-14 03:53:14,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:53:14,820 INFO L471 AbstractCegarLoop]: Abstraction has 269 states and 356 transitions. [2024-11-14 03:53:14,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 03:53:14,820 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 356 transitions. [2024-11-14 03:53:14,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-14 03:53:14,821 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:53:14,821 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-14 03:53:14,848 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-14 03:53:15,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-14 03:53:15,025 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 03:53:15,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:53:15,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1046984252, now seen corresponding path program 1 times [2024-11-14 03:53:15,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:53:15,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504149309] [2024-11-14 03:53:15,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:15,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:53:15,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:53:15,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1423405731] [2024-11-14 03:53:15,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:15,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:53:15,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:53:15,055 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:53:15,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-14 03:53:15,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:53:15,116 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:53:15,118 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:53:15,409 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 03:53:15,409 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:53:15,409 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:53:15,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504149309] [2024-11-14 03:53:15,409 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:53:15,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1423405731] [2024-11-14 03:53:15,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1423405731] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:53:15,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:53:15,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:53:15,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328534741] [2024-11-14 03:53:15,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:53:15,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:53:15,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:53:15,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:53:15,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:53:15,411 INFO L87 Difference]: Start difference. First operand 269 states and 356 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 03:53:17,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:53:17,647 INFO L93 Difference]: Finished difference Result 341 states and 427 transitions. [2024-11-14 03:53:17,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:53:17,647 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 31 [2024-11-14 03:53:17,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:53:17,649 INFO L225 Difference]: With dead ends: 341 [2024-11-14 03:53:17,650 INFO L226 Difference]: Without dead ends: 339 [2024-11-14 03:53:17,650 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:53:17,651 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 85 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:53:17,651 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 206 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-14 03:53:17,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2024-11-14 03:53:17,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 270. [2024-11-14 03:53:17,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 187 states have (on average 1.625668449197861) internal successors, (304), 242 states have internal predecessors, (304), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-14 03:53:17,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 354 transitions. [2024-11-14 03:53:17,672 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 354 transitions. Word has length 31 [2024-11-14 03:53:17,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:53:17,672 INFO L471 AbstractCegarLoop]: Abstraction has 270 states and 354 transitions. [2024-11-14 03:53:17,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 03:53:17,673 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 354 transitions. [2024-11-14 03:53:17,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-14 03:53:17,674 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:53:17,674 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-14 03:53:17,697 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-14 03:53:17,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:53:17,875 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 03:53:17,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:53:17,875 INFO L85 PathProgramCache]: Analyzing trace with hash 597716388, now seen corresponding path program 1 times [2024-11-14 03:53:17,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:53:17,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673771974] [2024-11-14 03:53:17,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:17,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:53:17,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:53:17,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2104112986] [2024-11-14 03:53:17,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:17,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:53:17,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:53:17,906 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:53:17,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-14 03:53:17,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:53:17,980 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:53:17,982 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:53:18,127 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 03:53:18,127 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:53:18,127 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:53:18,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673771974] [2024-11-14 03:53:18,127 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:53:18,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104112986] [2024-11-14 03:53:18,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104112986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:53:18,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:53:18,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:53:18,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510546058] [2024-11-14 03:53:18,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:53:18,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:53:18,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:53:18,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:53:18,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:53:18,133 INFO L87 Difference]: Start difference. First operand 270 states and 354 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-14 03:53:18,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:53:18,767 INFO L93 Difference]: Finished difference Result 292 states and 373 transitions. [2024-11-14 03:53:18,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:53:18,767 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 37 [2024-11-14 03:53:18,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:53:18,770 INFO L225 Difference]: With dead ends: 292 [2024-11-14 03:53:18,770 INFO L226 Difference]: Without dead ends: 290 [2024-11-14 03:53:18,770 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 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 03:53:18,771 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 155 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 03:53:18,772 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 151 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 03:53:18,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2024-11-14 03:53:18,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 271. [2024-11-14 03:53:18,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 188 states have (on average 1.6117021276595744) internal successors, (303), 243 states have internal predecessors, (303), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-14 03:53:18,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 353 transitions. [2024-11-14 03:53:18,793 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 353 transitions. Word has length 37 [2024-11-14 03:53:18,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:53:18,793 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 353 transitions. [2024-11-14 03:53:18,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-14 03:53:18,794 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 353 transitions. [2024-11-14 03:53:18,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-14 03:53:18,799 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:53:18,799 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-14 03:53:18,825 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-14 03:53:18,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:53:19,000 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 03:53:19,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:53:19,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1349338924, now seen corresponding path program 1 times [2024-11-14 03:53:19,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:53:19,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158452711] [2024-11-14 03:53:19,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:19,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:53:19,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:53:19,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2072965134] [2024-11-14 03:53:19,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:19,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:53:19,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:53:19,050 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:53:19,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-14 03:53:19,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:53:19,114 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:53:19,116 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:53:19,236 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 03:53:19,236 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:53:19,236 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:53:19,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158452711] [2024-11-14 03:53:19,236 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:53:19,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2072965134] [2024-11-14 03:53:19,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2072965134] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:53:19,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:53:19,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:53:19,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639744875] [2024-11-14 03:53:19,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:53:19,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:53:19,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:53:19,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:53:19,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:53:19,239 INFO L87 Difference]: Start difference. First operand 271 states and 353 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-14 03:53:19,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:53:19,711 INFO L93 Difference]: Finished difference Result 292 states and 370 transitions. [2024-11-14 03:53:19,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:53:19,712 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 38 [2024-11-14 03:53:19,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:53:19,714 INFO L225 Difference]: With dead ends: 292 [2024-11-14 03:53:19,714 INFO L226 Difference]: Without dead ends: 290 [2024-11-14 03:53:19,714 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 35 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 03:53:19,715 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 207 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:53:19,716 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 140 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 03:53:19,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2024-11-14 03:53:19,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 272. [2024-11-14 03:53:19,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 189 states have (on average 1.597883597883598) internal successors, (302), 244 states have internal predecessors, (302), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-14 03:53:19,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 352 transitions. [2024-11-14 03:53:19,737 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 352 transitions. Word has length 38 [2024-11-14 03:53:19,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:53:19,738 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 352 transitions. [2024-11-14 03:53:19,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-14 03:53:19,738 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 352 transitions. [2024-11-14 03:53:19,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-14 03:53:19,739 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:53:19,740 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-14 03:53:19,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-14 03:53:19,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-14 03:53:19,941 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 03:53:19,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:53:19,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1120166234, now seen corresponding path program 1 times [2024-11-14 03:53:19,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:53:19,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266776713] [2024-11-14 03:53:19,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:19,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:53:19,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:53:19,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [615888495] [2024-11-14 03:53:19,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:19,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:53:19,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:53:19,979 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:53:19,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-14 03:53:20,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:53:20,041 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:53:20,043 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:53:20,112 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 03:53:20,112 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:53:20,112 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:53:20,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266776713] [2024-11-14 03:53:20,113 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:53:20,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [615888495] [2024-11-14 03:53:20,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [615888495] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:53:20,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:53:20,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:53:20,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169149875] [2024-11-14 03:53:20,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:53:20,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:53:20,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:53:20,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:53:20,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:53:20,115 INFO L87 Difference]: Start difference. First operand 272 states and 352 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 03:53:21,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:53:21,118 INFO L93 Difference]: Finished difference Result 300 states and 359 transitions. [2024-11-14 03:53:21,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:53:21,119 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 39 [2024-11-14 03:53:21,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:53:21,122 INFO L225 Difference]: With dead ends: 300 [2024-11-14 03:53:21,122 INFO L226 Difference]: Without dead ends: 298 [2024-11-14 03:53:21,122 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 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 03:53:21,123 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 127 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:53:21,124 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 188 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-14 03:53:21,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2024-11-14 03:53:21,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 273. [2024-11-14 03:53:21,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 190 states have (on average 1.5842105263157895) internal successors, (301), 245 states have internal predecessors, (301), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-14 03:53:21,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 351 transitions. [2024-11-14 03:53:21,148 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 351 transitions. Word has length 39 [2024-11-14 03:53:21,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:53:21,149 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 351 transitions. [2024-11-14 03:53:21,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 03:53:21,149 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 351 transitions. [2024-11-14 03:53:21,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-14 03:53:21,150 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:53:21,150 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-14 03:53:21,176 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-14 03:53:21,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:53:21,351 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 03:53:21,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:53:21,352 INFO L85 PathProgramCache]: Analyzing trace with hash -365414802, now seen corresponding path program 1 times [2024-11-14 03:53:21,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:53:21,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406131673] [2024-11-14 03:53:21,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:21,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:53:21,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:53:21,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1337210368] [2024-11-14 03:53:21,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:21,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:53:21,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:53:21,394 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:53:21,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-14 03:53:21,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:53:21,455 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:53:21,456 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:53:21,669 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 03:53:21,669 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:53:21,670 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:53:21,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406131673] [2024-11-14 03:53:21,670 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:53:21,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1337210368] [2024-11-14 03:53:21,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1337210368] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:53:21,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:53:21,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:53:21,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475287227] [2024-11-14 03:53:21,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:53:21,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:53:21,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:53:21,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:53:21,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:53:21,672 INFO L87 Difference]: Start difference. First operand 273 states and 351 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 03:53:23,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:53:23,363 INFO L93 Difference]: Finished difference Result 300 states and 356 transitions. [2024-11-14 03:53:23,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:53:23,364 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 40 [2024-11-14 03:53:23,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:53:23,366 INFO L225 Difference]: With dead ends: 300 [2024-11-14 03:53:23,366 INFO L226 Difference]: Without dead ends: 298 [2024-11-14 03:53:23,366 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 37 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 03:53:23,367 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 77 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:53:23,367 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 233 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-14 03:53:23,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2024-11-14 03:53:23,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 274. [2024-11-14 03:53:23,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 191 states have (on average 1.5706806282722514) internal successors, (300), 246 states have internal predecessors, (300), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-14 03:53:23,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 350 transitions. [2024-11-14 03:53:23,388 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 350 transitions. Word has length 40 [2024-11-14 03:53:23,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:53:23,389 INFO L471 AbstractCegarLoop]: Abstraction has 274 states and 350 transitions. [2024-11-14 03:53:23,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 03:53:23,389 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 350 transitions. [2024-11-14 03:53:23,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-14 03:53:23,390 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:53:23,390 INFO L215 NwaCegarLoop]: trace histogram [4, 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] [2024-11-14 03:53:23,415 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-14 03:53:23,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:53:23,591 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 03:53:23,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:53:23,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1501587617, now seen corresponding path program 1 times [2024-11-14 03:53:23,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:53:23,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891664770] [2024-11-14 03:53:23,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:23,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:53:23,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:53:23,756 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-14 03:53:23,756 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:53:23,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891664770] [2024-11-14 03:53:23,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891664770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:53:23,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:53:23,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:53:23,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717218338] [2024-11-14 03:53:23,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:53:23,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:53:23,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:53:23,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:53:23,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:53:23,759 INFO L87 Difference]: Start difference. First operand 274 states and 350 transitions. Second operand has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-14 03:53:23,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:53:23,837 INFO L93 Difference]: Finished difference Result 274 states and 350 transitions. [2024-11-14 03:53:23,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:53:23,838 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 45 [2024-11-14 03:53:23,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:53:23,840 INFO L225 Difference]: With dead ends: 274 [2024-11-14 03:53:23,840 INFO L226 Difference]: Without dead ends: 272 [2024-11-14 03:53:23,840 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:53:23,841 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 46 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:53:23,842 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 194 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:53:23,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2024-11-14 03:53:23,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 272. [2024-11-14 03:53:23,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 191 states have (on average 1.5392670157068062) internal successors, (294), 244 states have internal predecessors, (294), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-14 03:53:23,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 344 transitions. [2024-11-14 03:53:23,865 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 344 transitions. Word has length 45 [2024-11-14 03:53:23,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:53:23,866 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 344 transitions. [2024-11-14 03:53:23,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-14 03:53:23,866 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 344 transitions. [2024-11-14 03:53:23,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-14 03:53:23,869 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:53:23,869 INFO L215 NwaCegarLoop]: trace histogram [4, 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] [2024-11-14 03:53:23,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-14 03:53:23,870 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 03:53:23,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:53:23,870 INFO L85 PathProgramCache]: Analyzing trace with hash 695424256, now seen corresponding path program 1 times [2024-11-14 03:53:23,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:53:23,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611169557] [2024-11-14 03:53:23,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:23,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:53:23,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:53:23,937 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-14 03:53:23,938 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:53:23,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611169557] [2024-11-14 03:53:23,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611169557] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:53:23,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:53:23,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:53:23,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675272664] [2024-11-14 03:53:23,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:53:23,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:53:23,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:53:23,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:53:23,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:53:23,940 INFO L87 Difference]: Start difference. First operand 272 states and 344 transitions. Second operand has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-14 03:53:24,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:53:24,005 INFO L93 Difference]: Finished difference Result 272 states and 344 transitions. [2024-11-14 03:53:24,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:53:24,006 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 46 [2024-11-14 03:53:24,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:53:24,007 INFO L225 Difference]: With dead ends: 272 [2024-11-14 03:53:24,008 INFO L226 Difference]: Without dead ends: 270 [2024-11-14 03:53:24,008 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:53:24,009 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 45 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:53:24,009 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 193 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:53:24,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2024-11-14 03:53:24,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 270. [2024-11-14 03:53:24,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 191 states have (on average 1.4973821989528795) internal successors, (286), 242 states have internal predecessors, (286), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-14 03:53:24,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 336 transitions. [2024-11-14 03:53:24,029 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 336 transitions. Word has length 46 [2024-11-14 03:53:24,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:53:24,029 INFO L471 AbstractCegarLoop]: Abstraction has 270 states and 336 transitions. [2024-11-14 03:53:24,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-14 03:53:24,030 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 336 transitions. [2024-11-14 03:53:24,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-14 03:53:24,030 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:53:24,031 INFO L215 NwaCegarLoop]: trace histogram [4, 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] [2024-11-14 03:53:24,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-14 03:53:24,031 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 03:53:24,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:53:24,032 INFO L85 PathProgramCache]: Analyzing trace with hash 83357293, now seen corresponding path program 1 times [2024-11-14 03:53:24,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:53:24,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658800560] [2024-11-14 03:53:24,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:24,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:53:24,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:53:24,258 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-14 03:53:24,259 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:53:24,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658800560] [2024-11-14 03:53:24,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658800560] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:53:24,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:53:24,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:53:24,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772343287] [2024-11-14 03:53:24,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:53:24,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:53:24,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:53:24,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:53:24,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:53:24,260 INFO L87 Difference]: Start difference. First operand 270 states and 336 transitions. Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-14 03:53:25,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:53:25,148 INFO L93 Difference]: Finished difference Result 271 states and 336 transitions. [2024-11-14 03:53:25,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 03:53:25,149 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 47 [2024-11-14 03:53:25,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:53:25,150 INFO L225 Difference]: With dead ends: 271 [2024-11-14 03:53:25,150 INFO L226 Difference]: Without dead ends: 270 [2024-11-14 03:53:25,151 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 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 03:53:25,151 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 277 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 03:53:25,152 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 134 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 03:53:25,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2024-11-14 03:53:25,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 270. [2024-11-14 03:53:25,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 191 states have (on average 1.4921465968586387) internal successors, (285), 242 states have internal predecessors, (285), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-14 03:53:25,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 335 transitions. [2024-11-14 03:53:25,172 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 335 transitions. Word has length 47 [2024-11-14 03:53:25,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:53:25,172 INFO L471 AbstractCegarLoop]: Abstraction has 270 states and 335 transitions. [2024-11-14 03:53:25,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-14 03:53:25,173 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 335 transitions. [2024-11-14 03:53:25,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-14 03:53:25,173 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:53:25,173 INFO L215 NwaCegarLoop]: trace histogram [4, 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] [2024-11-14 03:53:25,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-14 03:53:25,174 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 03:53:25,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:53:25,174 INFO L85 PathProgramCache]: Analyzing trace with hash 83343391, now seen corresponding path program 1 times [2024-11-14 03:53:25,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:53:25,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279426809] [2024-11-14 03:53:25,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:25,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:53:25,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:53:25,276 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-14 03:53:25,276 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:53:25,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279426809] [2024-11-14 03:53:25,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279426809] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:53:25,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:53:25,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:53:25,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47570888] [2024-11-14 03:53:25,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:53:25,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:53:25,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:53:25,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:53:25,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:53:25,277 INFO L87 Difference]: Start difference. First operand 270 states and 335 transitions. Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-14 03:53:26,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:53:26,255 INFO L93 Difference]: Finished difference Result 273 states and 338 transitions. [2024-11-14 03:53:26,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 03:53:26,256 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 47 [2024-11-14 03:53:26,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:53:26,258 INFO L225 Difference]: With dead ends: 273 [2024-11-14 03:53:26,258 INFO L226 Difference]: Without dead ends: 272 [2024-11-14 03:53:26,259 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 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 03:53:26,259 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 277 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-14 03:53:26,260 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 134 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-14 03:53:26,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2024-11-14 03:53:26,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 272. [2024-11-14 03:53:26,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 193 states have (on average 1.4870466321243523) internal successors, (287), 244 states have internal predecessors, (287), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-14 03:53:26,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 337 transitions. [2024-11-14 03:53:26,289 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 337 transitions. Word has length 47 [2024-11-14 03:53:26,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:53:26,290 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 337 transitions. [2024-11-14 03:53:26,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-14 03:53:26,290 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 337 transitions. [2024-11-14 03:53:26,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-14 03:53:26,291 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:53:26,291 INFO L215 NwaCegarLoop]: trace histogram [4, 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] [2024-11-14 03:53:26,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-14 03:53:26,292 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 03:53:26,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:53:26,292 INFO L85 PathProgramCache]: Analyzing trace with hash 806130950, now seen corresponding path program 1 times [2024-11-14 03:53:26,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:53:26,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253623382] [2024-11-14 03:53:26,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:26,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:53:26,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:53:26,488 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-14 03:53:26,489 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:53:26,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253623382] [2024-11-14 03:53:26,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253623382] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:53:26,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:53:26,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:53:26,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366994500] [2024-11-14 03:53:26,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:53:26,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:53:26,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:53:26,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:53:26,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:53:26,492 INFO L87 Difference]: Start difference. First operand 272 states and 337 transitions. Second operand has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-14 03:53:26,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:53:26,843 INFO L93 Difference]: Finished difference Result 329 states and 405 transitions. [2024-11-14 03:53:26,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:53:26,844 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 50 [2024-11-14 03:53:26,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:53:26,845 INFO L225 Difference]: With dead ends: 329 [2024-11-14 03:53:26,845 INFO L226 Difference]: Without dead ends: 325 [2024-11-14 03:53:26,846 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:53:26,846 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 43 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:53:26,846 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 133 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 03:53:26,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2024-11-14 03:53:26,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 282. [2024-11-14 03:53:26,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 203 states have (on average 1.4679802955665024) internal successors, (298), 254 states have internal predecessors, (298), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-14 03:53:26,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 348 transitions. [2024-11-14 03:53:26,871 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 348 transitions. Word has length 50 [2024-11-14 03:53:26,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:53:26,872 INFO L471 AbstractCegarLoop]: Abstraction has 282 states and 348 transitions. [2024-11-14 03:53:26,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-14 03:53:26,872 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 348 transitions. [2024-11-14 03:53:26,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-14 03:53:26,873 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:53:26,873 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 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] [2024-11-14 03:53:26,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-14 03:53:26,873 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 03:53:26,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:53:26,874 INFO L85 PathProgramCache]: Analyzing trace with hash -2009871949, now seen corresponding path program 1 times [2024-11-14 03:53:26,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:53:26,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768603361] [2024-11-14 03:53:26,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:26,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:53:26,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:53:26,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [989336723] [2024-11-14 03:53:26,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:26,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:53:26,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:53:26,896 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:53:26,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-14 03:53:26,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:53:26,968 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 03:53:26,970 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:53:27,282 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-14 03:53:27,282 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:53:27,534 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:53:27,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768603361] [2024-11-14 03:53:27,534 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:53:27,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [989336723] [2024-11-14 03:53:27,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [989336723] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:53:27,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1055083417] [2024-11-14 03:53:27,568 INFO L159 IcfgInterpreter]: Started Sifa with 42 locations of interest [2024-11-14 03:53:27,568 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:53:27,574 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:53:27,580 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:53:27,581 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:53:32,815 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 03:53:32,817 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 03:53:32,818 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:53:36,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1055083417] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:53:36,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:53:36,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [3] total 22 [2024-11-14 03:53:36,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202070219] [2024-11-14 03:53:36,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:53:36,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-14 03:53:36,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:53:36,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-14 03:53:36,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2024-11-14 03:53:36,202 INFO L87 Difference]: Start difference. First operand 282 states and 348 transitions. Second operand has 21 states, 14 states have (on average 2.357142857142857) internal successors, (33), 13 states have internal predecessors, (33), 6 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-14 03:53:40,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:53:40,612 INFO L93 Difference]: Finished difference Result 348 states and 403 transitions. [2024-11-14 03:53:40,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-14 03:53:40,612 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 14 states have (on average 2.357142857142857) internal successors, (33), 13 states have internal predecessors, (33), 6 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) Word has length 53 [2024-11-14 03:53:40,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:53:40,615 INFO L225 Difference]: With dead ends: 348 [2024-11-14 03:53:40,615 INFO L226 Difference]: Without dead ends: 260 [2024-11-14 03:53:40,617 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 82 SyntacticMatches, 12 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 371 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=304, Invalid=752, Unknown=0, NotChecked=0, Total=1056 [2024-11-14 03:53:40,618 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 518 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 1579 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 1672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 1579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:53:40,618 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [524 Valid, 123 Invalid, 1672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 1579 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-14 03:53:40,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2024-11-14 03:53:40,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 255. [2024-11-14 03:53:40,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 179 states have (on average 1.4301675977653632) internal successors, (256), 230 states have internal predecessors, (256), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-14 03:53:40,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 300 transitions. [2024-11-14 03:53:40,647 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 300 transitions. Word has length 53 [2024-11-14 03:53:40,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:53:40,652 INFO L471 AbstractCegarLoop]: Abstraction has 255 states and 300 transitions. [2024-11-14 03:53:40,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 14 states have (on average 2.357142857142857) internal successors, (33), 13 states have internal predecessors, (33), 6 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-14 03:53:40,652 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 300 transitions. [2024-11-14 03:53:40,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-14 03:53:40,653 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:53:40,653 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 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] [2024-11-14 03:53:40,681 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-14 03:53:40,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-14 03:53:40,854 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 03:53:40,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:53:40,855 INFO L85 PathProgramCache]: Analyzing trace with hash -622365746, now seen corresponding path program 1 times [2024-11-14 03:53:40,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:53:40,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576417270] [2024-11-14 03:53:40,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:40,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:53:40,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:53:40,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [99692597] [2024-11-14 03:53:40,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:40,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:53:40,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:53:40,882 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:53:40,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-14 03:53:40,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:53:40,956 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 03:53:40,958 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:53:41,374 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-14 03:53:41,374 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:53:43,560 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:53:43,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576417270] [2024-11-14 03:53:43,560 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:53:43,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [99692597] [2024-11-14 03:53:43,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [99692597] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:53:43,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [164509367] [2024-11-14 03:53:43,563 INFO L159 IcfgInterpreter]: Started Sifa with 42 locations of interest [2024-11-14 03:53:43,564 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:53:43,564 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:53:43,564 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:53:43,564 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:53:47,339 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 03:53:47,341 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 03:53:47,342 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:53:50,476 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '12966#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~p~0#1| 1) (<= |ULTIMATE.start_main_~x~0#1| 50) (<= 1 |ULTIMATE.start_main_~b~0#1|) (<= |ULTIMATE.start_main_~a~0#1| 50) (<= 0 (+ 95 |ULTIMATE.start_main_~a~0#1|)) (= |ULTIMATE.start_main_~q~0#1| 0) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~b~0#1| 50) (exists ((|v_ULTIMATE.start_main_~y~0#1_64| Int) (|v_ULTIMATE.start_main_~r~0#1_74| Int)) (and (<= 0 (+ 9223372036854775808 |v_ULTIMATE.start_main_~r~0#1_74|)) (<= (+ 9223372036854775809 (* |v_ULTIMATE.start_main_~y~0#1_64| |v_ULTIMATE.start_main_~r~0#1_74|)) 0) (<= |v_ULTIMATE.start_main_~y~0#1_64| 50) (<= 1 |v_ULTIMATE.start_main_~y~0#1_64|))) (= |ULTIMATE.start_main_~s~0#1| 1))' at error location [2024-11-14 03:53:50,477 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:53:50,477 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:53:50,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-14 03:53:50,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429314536] [2024-11-14 03:53:50,477 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 03:53:50,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 03:53:50,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:53:50,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 03:53:50,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=532, Unknown=1, NotChecked=0, Total=650 [2024-11-14 03:53:50,479 INFO L87 Difference]: Start difference. First operand 255 states and 300 transitions. Second operand has 6 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-14 03:53:51,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:53:51,303 INFO L93 Difference]: Finished difference Result 403 states and 511 transitions. [2024-11-14 03:53:51,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 03:53:51,304 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 62 [2024-11-14 03:53:51,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:53:51,305 INFO L225 Difference]: With dead ends: 403 [2024-11-14 03:53:51,306 INFO L226 Difference]: Without dead ends: 401 [2024-11-14 03:53:51,306 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 102 SyntacticMatches, 17 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=117, Invalid=532, Unknown=1, NotChecked=0, Total=650 [2024-11-14 03:53:51,307 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 264 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 03:53:51,307 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 208 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 03:53:51,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2024-11-14 03:53:51,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 325. [2024-11-14 03:53:51,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 241 states have (on average 1.4688796680497926) internal successors, (354), 292 states have internal predecessors, (354), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-14 03:53:51,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 414 transitions. [2024-11-14 03:53:51,337 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 414 transitions. Word has length 62 [2024-11-14 03:53:51,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:53:51,337 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 414 transitions. [2024-11-14 03:53:51,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-14 03:53:51,338 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 414 transitions. [2024-11-14 03:53:51,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-14 03:53:51,338 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:53:51,339 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 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] [2024-11-14 03:53:51,360 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-14 03:53:51,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:53:51,539 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 03:53:51,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:53:51,540 INFO L85 PathProgramCache]: Analyzing trace with hash -2113468879, now seen corresponding path program 1 times [2024-11-14 03:53:51,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:53:51,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934762488] [2024-11-14 03:53:51,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:51,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:53:51,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:53:51,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [638645658] [2024-11-14 03:53:51,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:51,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:53:51,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:53:51,566 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:53:51,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-14 03:53:51,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:53:51,622 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 03:53:51,624 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:53:51,957 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-14 03:53:51,958 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:53:54,674 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:53:54,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934762488] [2024-11-14 03:53:54,675 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:53:54,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [638645658] [2024-11-14 03:53:54,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [638645658] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:53:54,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1109514514] [2024-11-14 03:53:54,677 INFO L159 IcfgInterpreter]: Started Sifa with 42 locations of interest [2024-11-14 03:53:54,677 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:53:54,678 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:53:54,678 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:53:54,678 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:53:57,785 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 03:53:57,786 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 03:53:57,787 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:54:00,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1109514514] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:54:00,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:54:00,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [5] total 22 [2024-11-14 03:54:00,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141318419] [2024-11-14 03:54:00,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:54:00,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-14 03:54:00,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:54:00,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-14 03:54:00,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=471, Unknown=1, NotChecked=0, Total=600 [2024-11-14 03:54:00,585 INFO L87 Difference]: Start difference. First operand 325 states and 414 transitions. Second operand has 19 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 6 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-14 03:54:04,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:54:04,599 INFO L93 Difference]: Finished difference Result 348 states and 420 transitions. [2024-11-14 03:54:04,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-14 03:54:04,599 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 6 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 63 [2024-11-14 03:54:04,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:54:04,600 INFO L225 Difference]: With dead ends: 348 [2024-11-14 03:54:04,601 INFO L226 Difference]: Without dead ends: 311 [2024-11-14 03:54:04,601 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 106 SyntacticMatches, 18 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=344, Invalid=915, Unknown=1, NotChecked=0, Total=1260 [2024-11-14 03:54:04,602 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 557 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 1329 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 563 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 1422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 1329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:54:04,602 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [563 Valid, 120 Invalid, 1422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 1329 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-14 03:54:04,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2024-11-14 03:54:04,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 302. [2024-11-14 03:54:04,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 221 states have (on average 1.3981900452488687) internal successors, (309), 272 states have internal predecessors, (309), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-14 03:54:04,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 363 transitions. [2024-11-14 03:54:04,643 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 363 transitions. Word has length 63 [2024-11-14 03:54:04,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:54:04,644 INFO L471 AbstractCegarLoop]: Abstraction has 302 states and 363 transitions. [2024-11-14 03:54:04,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 6 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-14 03:54:04,644 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 363 transitions. [2024-11-14 03:54:04,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-14 03:54:04,648 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:54:04,648 INFO L215 NwaCegarLoop]: trace histogram [6, 4, 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] [2024-11-14 03:54:04,674 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-14 03:54:04,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:54:04,849 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 03:54:04,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:54:04,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1323783293, now seen corresponding path program 1 times [2024-11-14 03:54:04,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:54:04,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972305229] [2024-11-14 03:54:04,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:54:04,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:54:04,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:54:05,054 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-14 03:54:05,054 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:54:05,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972305229] [2024-11-14 03:54:05,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972305229] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:54:05,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [615568531] [2024-11-14 03:54:05,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:54:05,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:54:05,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:54:05,057 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:54:05,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-14 03:54:05,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:54:05,128 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:54:05,130 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:54:05,371 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-14 03:54:05,371 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:54:05,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [615568531] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:54:05,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:54:05,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-14 03:54:05,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658668207] [2024-11-14 03:54:05,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:54:05,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:54:05,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:54:05,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:54:05,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-14 03:54:05,373 INFO L87 Difference]: Start difference. First operand 302 states and 363 transitions. Second operand has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 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 03:54:06,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:54:06,227 INFO L93 Difference]: Finished difference Result 411 states and 545 transitions. [2024-11-14 03:54:06,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:54:06,228 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 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 84 [2024-11-14 03:54:06,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:54:06,230 INFO L225 Difference]: With dead ends: 411 [2024-11-14 03:54:06,230 INFO L226 Difference]: Without dead ends: 409 [2024-11-14 03:54:06,230 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-14 03:54:06,231 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 95 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 03:54:06,231 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 148 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 03:54:06,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2024-11-14 03:54:06,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 298. [2024-11-14 03:54:06,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 219 states have (on average 1.3835616438356164) internal successors, (303), 268 states have internal predecessors, (303), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-14 03:54:06,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 357 transitions. [2024-11-14 03:54:06,270 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 357 transitions. Word has length 84 [2024-11-14 03:54:06,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:54:06,271 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 357 transitions. [2024-11-14 03:54:06,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 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 03:54:06,271 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 357 transitions. [2024-11-14 03:54:06,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-14 03:54:06,272 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:54:06,272 INFO L215 NwaCegarLoop]: trace histogram [6, 4, 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] [2024-11-14 03:54:06,296 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-14 03:54:06,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:54:06,473 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 03:54:06,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:54:06,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1912390776, now seen corresponding path program 1 times [2024-11-14 03:54:06,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:54:06,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937449208] [2024-11-14 03:54:06,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:54:06,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:54:06,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:54:06,652 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-14 03:54:06,652 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:54:06,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937449208] [2024-11-14 03:54:06,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937449208] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:54:06,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1772340786] [2024-11-14 03:54:06,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:54:06,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:54:06,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:54:06,656 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:54:06,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-14 03:54:06,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:54:06,727 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:54:06,729 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:54:07,003 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-14 03:54:07,003 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:54:07,173 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-14 03:54:07,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1772340786] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:54:07,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1601787097] [2024-11-14 03:54:07,176 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-14 03:54:07,176 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:54:07,176 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:54:07,176 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:54:07,177 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:54:09,529 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 03:54:09,545 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 03:54:09,546 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:54:12,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1601787097] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:54:12,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:54:12,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [3, 3, 3] total 28 [2024-11-14 03:54:12,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936399135] [2024-11-14 03:54:12,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:54:12,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-14 03:54:12,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:54:12,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-14 03:54:12,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=662, Unknown=0, NotChecked=0, Total=812 [2024-11-14 03:54:12,853 INFO L87 Difference]: Start difference. First operand 298 states and 357 transitions. Second operand has 23 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 6 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-14 03:54:16,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:54:16,602 INFO L93 Difference]: Finished difference Result 302 states and 360 transitions. [2024-11-14 03:54:16,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-14 03:54:16,603 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 6 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) Word has length 85 [2024-11-14 03:54:16,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:54:16,604 INFO L225 Difference]: With dead ends: 302 [2024-11-14 03:54:16,604 INFO L226 Difference]: Without dead ends: 301 [2024-11-14 03:54:16,605 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 208 SyntacticMatches, 22 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 642 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=363, Invalid=1197, Unknown=0, NotChecked=0, Total=1560 [2024-11-14 03:54:16,607 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 605 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 1424 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 611 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 1489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:54:16,608 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [611 Valid, 146 Invalid, 1489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1424 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-14 03:54:16,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2024-11-14 03:54:16,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 298. [2024-11-14 03:54:16,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 219 states have (on average 1.3789954337899544) internal successors, (302), 268 states have internal predecessors, (302), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-14 03:54:16,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 356 transitions. [2024-11-14 03:54:16,645 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 356 transitions. Word has length 85 [2024-11-14 03:54:16,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:54:16,645 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 356 transitions. [2024-11-14 03:54:16,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 6 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-14 03:54:16,646 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 356 transitions. [2024-11-14 03:54:16,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-14 03:54:16,647 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:54:16,647 INFO L215 NwaCegarLoop]: trace histogram [6, 4, 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] [2024-11-14 03:54:16,674 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-14 03:54:16,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:54:16,848 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 03:54:16,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:54:16,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1343176531, now seen corresponding path program 1 times [2024-11-14 03:54:16,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:54:16,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152735312] [2024-11-14 03:54:16,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:54:16,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:54:16,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:54:17,014 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-14 03:54:17,014 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:54:17,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152735312] [2024-11-14 03:54:17,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152735312] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:54:17,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [477571936] [2024-11-14 03:54:17,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:54:17,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:54:17,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:54:17,017 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:54:17,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-14 03:54:17,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:54:17,103 INFO L255 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:54:17,105 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:54:17,388 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-14 03:54:17,388 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:54:17,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [477571936] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:54:17,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:54:17,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-14 03:54:17,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865175010] [2024-11-14 03:54:17,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:54:17,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:54:17,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:54:17,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:54:17,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-14 03:54:17,392 INFO L87 Difference]: Start difference. First operand 298 states and 356 transitions. Second operand has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 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 03:54:18,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:54:18,015 INFO L93 Difference]: Finished difference Result 411 states and 543 transitions. [2024-11-14 03:54:18,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:54:18,015 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 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 03:54:18,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:54:18,017 INFO L225 Difference]: With dead ends: 411 [2024-11-14 03:54:18,017 INFO L226 Difference]: Without dead ends: 409 [2024-11-14 03:54:18,018 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-14 03:54:18,018 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 89 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 03:54:18,018 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 165 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 03:54:18,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2024-11-14 03:54:18,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 296. [2024-11-14 03:54:18,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 219 states have (on average 1.365296803652968) internal successors, (299), 266 states have internal predecessors, (299), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-14 03:54:18,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 353 transitions. [2024-11-14 03:54:18,057 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 353 transitions. Word has length 86 [2024-11-14 03:54:18,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:54:18,057 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 353 transitions. [2024-11-14 03:54:18,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 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 03:54:18,058 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 353 transitions. [2024-11-14 03:54:18,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-14 03:54:18,059 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:54:18,059 INFO L215 NwaCegarLoop]: trace histogram [6, 4, 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] [2024-11-14 03:54:18,085 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-14 03:54:18,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-14 03:54:18,260 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 03:54:18,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:54:18,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1311200618, now seen corresponding path program 1 times [2024-11-14 03:54:18,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:54:18,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866461552] [2024-11-14 03:54:18,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:54:18,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:54:18,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:54:18,403 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-14 03:54:18,403 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:54:18,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866461552] [2024-11-14 03:54:18,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866461552] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:54:18,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1354760820] [2024-11-14 03:54:18,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:54:18,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:54:18,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:54:18,407 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:54:18,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-14 03:54:18,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:54:18,482 INFO L255 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:54:18,485 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:54:18,769 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-14 03:54:18,769 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:54:18,988 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-14 03:54:18,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1354760820] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:54:18,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1774763757] [2024-11-14 03:54:18,991 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-14 03:54:18,992 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:54:18,992 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:54:18,992 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:54:18,992 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:54:21,712 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 03:54:21,713 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 03:54:21,714 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:54:25,577 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '18680#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~p~0#1| 1) (= |ULTIMATE.start_main_~y~0#1| (+ |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|)) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= 0 (+ 47 |ULTIMATE.start_main_~a~0#1|)) (not (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|)) (<= |ULTIMATE.start_main_~x~0#1| 50) (= (+ |ULTIMATE.start_main_~q~0#1| 1) 0) (<= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 50))' at error location [2024-11-14 03:54:25,577 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:54:25,577 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:54:25,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2024-11-14 03:54:25,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892750550] [2024-11-14 03:54:25,578 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:54:25,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 03:54:25,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:54:25,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 03:54:25,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=697, Unknown=0, NotChecked=0, Total=812 [2024-11-14 03:54:25,580 INFO L87 Difference]: Start difference. First operand 296 states and 353 transitions. Second operand has 8 states, 7 states have (on average 24.142857142857142) internal successors, (169), 8 states have internal predecessors, (169), 7 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) [2024-11-14 03:54:26,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:54:26,552 INFO L93 Difference]: Finished difference Result 667 states and 892 transitions. [2024-11-14 03:54:26,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 03:54:26,552 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 24.142857142857142) internal successors, (169), 8 states have internal predecessors, (169), 7 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) Word has length 87 [2024-11-14 03:54:26,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:54:26,555 INFO L225 Difference]: With dead ends: 667 [2024-11-14 03:54:26,555 INFO L226 Difference]: Without dead ends: 665 [2024-11-14 03:54:26,556 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 207 SyntacticMatches, 28 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 595 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=123, Invalid=747, Unknown=0, NotChecked=0, Total=870 [2024-11-14 03:54:26,556 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 220 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-14 03:54:26,557 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 345 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-14 03:54:26,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2024-11-14 03:54:26,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 490. [2024-11-14 03:54:26,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 395 states have (on average 1.4455696202531645) internal successors, (571), 442 states have internal predecessors, (571), 45 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-14 03:54:26,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 661 transitions. [2024-11-14 03:54:26,622 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 661 transitions. Word has length 87 [2024-11-14 03:54:26,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:54:26,623 INFO L471 AbstractCegarLoop]: Abstraction has 490 states and 661 transitions. [2024-11-14 03:54:26,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 24.142857142857142) internal successors, (169), 8 states have internal predecessors, (169), 7 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) [2024-11-14 03:54:26,623 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 661 transitions. [2024-11-14 03:54:26,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-14 03:54:26,624 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:54:26,625 INFO L215 NwaCegarLoop]: trace histogram [6, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:54:26,652 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-14 03:54:26,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:54:26,826 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 03:54:26,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:54:26,826 INFO L85 PathProgramCache]: Analyzing trace with hash 463116716, now seen corresponding path program 1 times [2024-11-14 03:54:26,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:54:26,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908218261] [2024-11-14 03:54:26,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:54:26,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:54:26,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:54:26,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [592747831] [2024-11-14 03:54:26,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:54:26,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:54:26,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:54:26,866 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:54:26,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-14 03:54:26,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:54:26,947 INFO L255 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 03:54:26,949 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:54:27,449 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-14 03:54:27,449 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:54:27,549 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:54:27,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908218261] [2024-11-14 03:54:27,549 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:54:27,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [592747831] [2024-11-14 03:54:27,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [592747831] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:54:27,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [609786198] [2024-11-14 03:54:27,552 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-14 03:54:27,552 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:54:27,552 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:54:27,552 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:54:27,552 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:54:40,320 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 03:54:40,321 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 03:54:40,322 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:54:59,603 WARN L286 SmtUtils]: Spent 11.37s on a formula simplification. DAG size of input: 54 DAG size of output: 47 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:55:11,178 WARN L286 SmtUtils]: Spent 10.96s on a formula simplification. DAG size of input: 56 DAG size of output: 49 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:55:19,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [609786198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:55:19,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:55:19,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [5] total 38 [2024-11-14 03:55:19,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39385866] [2024-11-14 03:55:19,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:55:19,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-14 03:55:19,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:55:19,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-14 03:55:19,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=260, Invalid=1380, Unknown=0, NotChecked=0, Total=1640 [2024-11-14 03:55:19,739 INFO L87 Difference]: Start difference. First operand 490 states and 661 transitions. Second operand has 35 states, 26 states have (on average 1.5384615384615385) internal successors, (40), 26 states have internal predecessors, (40), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 03:56:14,351 WARN L286 SmtUtils]: Spent 5.99s on a formula simplification. DAG size of input: 120 DAG size of output: 71 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:57:30,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-14 03:57:33,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.84s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-14 03:57:43,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-14 03:57:49,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:57:49,949 INFO L93 Difference]: Finished difference Result 629 states and 905 transitions. [2024-11-14 03:57:49,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2024-11-14 03:57:49,949 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 26 states have (on average 1.5384615384615385) internal successors, (40), 26 states have internal predecessors, (40), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Word has length 89 [2024-11-14 03:57:49,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:57:49,953 INFO L225 Difference]: With dead ends: 629 [2024-11-14 03:57:49,953 INFO L226 Difference]: Without dead ends: 508 [2024-11-14 03:57:49,955 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 133 SyntacticMatches, 19 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3317 ImplicationChecksByTransitivity, 127.0s TimeCoverageRelationStatistics Valid=2792, Invalid=9418, Unknown=0, NotChecked=0, Total=12210 [2024-11-14 03:57:49,956 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 1530 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 2676 mSolverCounterSat, 362 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 62.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1530 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 3039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 362 IncrementalHoareTripleChecker+Valid, 2676 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 62.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:57:49,956 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1530 Valid, 114 Invalid, 3039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [362 Valid, 2676 Invalid, 1 Unknown, 0 Unchecked, 62.4s Time] [2024-11-14 03:57:49,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2024-11-14 03:57:50,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 412. [2024-11-14 03:57:50,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 360 states have (on average 1.1388888888888888) internal successors, (410), 367 states have internal predecessors, (410), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-14 03:57:50,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 494 transitions. [2024-11-14 03:57:50,011 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 494 transitions. Word has length 89 [2024-11-14 03:57:50,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:57:50,012 INFO L471 AbstractCegarLoop]: Abstraction has 412 states and 494 transitions. [2024-11-14 03:57:50,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 26 states have (on average 1.5384615384615385) internal successors, (40), 26 states have internal predecessors, (40), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 03:57:50,012 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 494 transitions. [2024-11-14 03:57:50,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-14 03:57:50,013 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:57:50,013 INFO L215 NwaCegarLoop]: trace histogram [6, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:57:50,035 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-14 03:57:50,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:57:50,217 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 03:57:50,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:57:50,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1471716358, now seen corresponding path program 1 times [2024-11-14 03:57:50,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:57:50,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957923779] [2024-11-14 03:57:50,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:57:50,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:57:50,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:57:50,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1061217021] [2024-11-14 03:57:50,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:57:50,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:57:50,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:57:50,238 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:57:50,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-14 03:57:50,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:57:50,306 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-14 03:57:50,308 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:57:50,754 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-14 03:57:50,754 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:57:51,112 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:57:51,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957923779] [2024-11-14 03:57:51,113 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:57:51,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1061217021] [2024-11-14 03:57:51,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1061217021] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:57:51,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1312852064] [2024-11-14 03:57:51,115 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-14 03:57:51,115 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:57:51,115 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:57:51,115 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:57:51,115 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:58:00,871 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 03:58:00,872 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 03:58:00,873 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:58:12,400 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '21967#(and (<= |ULTIMATE.start_main_~q~0#1| 0) (<= 1 |#StackHeapBarrier|) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~q~0#1|)) (<= 1 |ULTIMATE.start_main_~y~0#1|) (exists ((|v_ULTIMATE.start_main_~s~0#1_112| Int) (|v_ULTIMATE.start_main_~p~0#1_100| Int)) (and (<= |v_ULTIMATE.start_main_~s~0#1_112| 9223372036854775808) (<= 1 |v_ULTIMATE.start_main_~p~0#1_100|) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~s~0#1_112| |v_ULTIMATE.start_main_~p~0#1_100|)) (<= |v_ULTIMATE.start_main_~p~0#1_100| 9223372036854775807))) (<= |ULTIMATE.start_main_~x~0#1| 50) (<= 1 |ULTIMATE.start_main_~a~0#1|) (<= |ULTIMATE.start_main_~r~0#1| 0) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~b~0#1| 50) (<= |ULTIMATE.start_main_~y~0#1| 50) (<= 0 (+ 49 |ULTIMATE.start_main_~b~0#1|)))' at error location [2024-11-14 03:58:12,400 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:58:12,400 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:58:12,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-14 03:58:12,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664093139] [2024-11-14 03:58:12,401 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 03:58:12,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 03:58:12,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:58:12,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 03:58:12,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=222, Invalid=1418, Unknown=0, NotChecked=0, Total=1640 [2024-11-14 03:58:12,403 INFO L87 Difference]: Start difference. First operand 412 states and 494 transitions. Second operand has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 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 03:58:12,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:58:12,631 INFO L93 Difference]: Finished difference Result 490 states and 582 transitions. [2024-11-14 03:58:12,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:58:12,632 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 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 90 [2024-11-14 03:58:12,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:58:12,633 INFO L225 Difference]: With dead ends: 490 [2024-11-14 03:58:12,633 INFO L226 Difference]: Without dead ends: 489 [2024-11-14 03:58:12,634 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 135 SyntacticMatches, 17 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 896 ImplicationChecksByTransitivity, 11.6s TimeCoverageRelationStatistics Valid=222, Invalid=1418, Unknown=0, NotChecked=0, Total=1640 [2024-11-14 03:58:12,634 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 69 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:58:12,634 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 96 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:58:12,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2024-11-14 03:58:12,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 451. [2024-11-14 03:58:12,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 396 states have (on average 1.128787878787879) internal successors, (447), 403 states have internal predecessors, (447), 45 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-14 03:58:12,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 537 transitions. [2024-11-14 03:58:12,709 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 537 transitions. Word has length 90 [2024-11-14 03:58:12,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:58:12,709 INFO L471 AbstractCegarLoop]: Abstraction has 451 states and 537 transitions. [2024-11-14 03:58:12,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 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 03:58:12,709 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 537 transitions. [2024-11-14 03:58:12,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-14 03:58:12,710 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:58:12,710 INFO L215 NwaCegarLoop]: trace histogram [6, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:58:12,730 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-14 03:58:12,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:58:12,915 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 03:58:12,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:58:12,915 INFO L85 PathProgramCache]: Analyzing trace with hash -749900538, now seen corresponding path program 2 times [2024-11-14 03:58:12,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:58:12,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852231579] [2024-11-14 03:58:12,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:58:12,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:58:12,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:58:12,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1501866414] [2024-11-14 03:58:12,939 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:58:12,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:58:12,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:58:12,944 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:58:12,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-14 03:58:13,002 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-14 03:58:13,002 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:58:13,003 INFO L255 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 03:58:13,005 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:58:13,190 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 3 proven. 27 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-14 03:58:13,190 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:58:13,749 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:58:13,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852231579] [2024-11-14 03:58:13,749 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:58:13,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1501866414] [2024-11-14 03:58:13,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1501866414] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:58:13,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1151570631] [2024-11-14 03:58:13,751 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-14 03:58:13,751 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:58:13,751 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:58:13,752 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:58:13,752 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:58:25,002 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 03:58:25,003 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 03:58:25,004 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:58:37,874 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '23382#(and (<= |ULTIMATE.start_main_~q~0#1| 0) (<= 1 |#StackHeapBarrier|) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~q~0#1|)) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 50) (<= 1 |ULTIMATE.start_main_~a~0#1|) (<= |ULTIMATE.start_main_~r~0#1| 0) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~b~0#1| 50) (exists ((|v_ULTIMATE.start_main_~s~0#1_128| Int) (|v_ULTIMATE.start_main_~p~0#1_106| Int)) (and (<= |v_ULTIMATE.start_main_~p~0#1_106| 9223372036854775807) (<= |v_ULTIMATE.start_main_~s~0#1_128| 9223372036854775808) (<= 1 |v_ULTIMATE.start_main_~s~0#1_128|) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~s~0#1_128| |v_ULTIMATE.start_main_~p~0#1_106|)))) (<= |ULTIMATE.start_main_~y~0#1| 50))' at error location [2024-11-14 03:58:37,874 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:58:37,874 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:58:37,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-14 03:58:37,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788499009] [2024-11-14 03:58:37,874 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 03:58:37,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:58:37,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:58:37,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:58:37,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=1347, Unknown=0, NotChecked=0, Total=1560 [2024-11-14 03:58:37,875 INFO L87 Difference]: Start difference. First operand 451 states and 537 transitions. Second operand has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 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 03:58:38,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:58:38,194 INFO L93 Difference]: Finished difference Result 571 states and 680 transitions. [2024-11-14 03:58:38,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:58:38,194 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 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 90 [2024-11-14 03:58:38,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:58:38,196 INFO L225 Difference]: With dead ends: 571 [2024-11-14 03:58:38,196 INFO L226 Difference]: Without dead ends: 570 [2024-11-14 03:58:38,196 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 136 SyntacticMatches, 17 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 852 ImplicationChecksByTransitivity, 13.0s TimeCoverageRelationStatistics Valid=220, Invalid=1420, Unknown=0, NotChecked=0, Total=1640 [2024-11-14 03:58:38,197 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 69 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:58:38,197 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 117 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:58:38,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2024-11-14 03:58:38,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 553. [2024-11-14 03:58:38,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 489 states have (on average 1.1349693251533743) internal successors, (555), 496 states have internal predecessors, (555), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-14 03:58:38,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 663 transitions. [2024-11-14 03:58:38,282 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 663 transitions. Word has length 90 [2024-11-14 03:58:38,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:58:38,282 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 663 transitions. [2024-11-14 03:58:38,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 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 03:58:38,283 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 663 transitions. [2024-11-14 03:58:38,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-14 03:58:38,283 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:58:38,284 INFO L215 NwaCegarLoop]: trace histogram [6, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:58:38,304 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-14 03:58:38,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-14 03:58:38,488 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 03:58:38,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:58:38,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1275181320, now seen corresponding path program 1 times [2024-11-14 03:58:38,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:58:38,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963363235] [2024-11-14 03:58:38,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:58:38,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:58:38,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:58:38,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [919308256] [2024-11-14 03:58:38,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:58:38,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:58:38,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:58:38,520 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:58:38,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-14 03:58:38,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:58:38,588 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-14 03:58:38,590 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:58:39,063 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-14 03:58:39,064 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:58:41,373 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:58:41,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963363235] [2024-11-14 03:58:41,373 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:58:41,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [919308256] [2024-11-14 03:58:41,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [919308256] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:58:41,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1000577112] [2024-11-14 03:58:41,375 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-14 03:58:41,375 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:58:41,376 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:58:41,376 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:58:41,376 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:58:50,365 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 03:58:50,366 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 03:58:50,367 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:59:03,808 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '25015#(and (<= 1 |ULTIMATE.start_main_~s~0#1|) (<= 1 |ULTIMATE.start_main_~p~0#1|) (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 50) (<= 1 |ULTIMATE.start_main_~a~0#1|) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~b~0#1| 50) (<= (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~s~0#1|) 9223372036854775807) (<= |ULTIMATE.start_main_~y~0#1| 50) (exists ((|v_ULTIMATE.start_main_~r~0#1_112| Int) (|v_ULTIMATE.start_main_~q~0#1_141| Int)) (and (<= 0 (+ 9223372036854775808 |v_ULTIMATE.start_main_~r~0#1_112|)) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_141| 9223372036854775808)) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_141| |v_ULTIMATE.start_main_~r~0#1_112|)) (<= |v_ULTIMATE.start_main_~r~0#1_112| 0))) (<= 0 (+ 49 |ULTIMATE.start_main_~b~0#1|)))' at error location [2024-11-14 03:59:03,808 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:59:03,808 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:59:03,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-14 03:59:03,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415342581] [2024-11-14 03:59:03,808 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 03:59:03,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:59:03,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:59:03,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:59:03,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=1361, Unknown=1, NotChecked=0, Total=1560 [2024-11-14 03:59:03,809 INFO L87 Difference]: Start difference. First operand 553 states and 663 transitions. Second operand has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 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 03:59:04,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:59:04,042 INFO L93 Difference]: Finished difference Result 590 states and 705 transitions. [2024-11-14 03:59:04,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:59:04,043 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 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 92 [2024-11-14 03:59:04,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:59:04,045 INFO L225 Difference]: With dead ends: 590 [2024-11-14 03:59:04,045 INFO L226 Difference]: Without dead ends: 589 [2024-11-14 03:59:04,046 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 141 SyntacticMatches, 18 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 769 ImplicationChecksByTransitivity, 15.6s TimeCoverageRelationStatistics Valid=198, Invalid=1361, Unknown=1, NotChecked=0, Total=1560 [2024-11-14 03:59:04,046 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 36 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:59:04,046 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 138 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:59:04,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2024-11-14 03:59:04,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 555. [2024-11-14 03:59:04,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 491 states have (on average 1.1344195519348268) internal successors, (557), 498 states have internal predecessors, (557), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-14 03:59:04,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 665 transitions. [2024-11-14 03:59:04,117 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 665 transitions. Word has length 92 [2024-11-14 03:59:04,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:59:04,117 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 665 transitions. [2024-11-14 03:59:04,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 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 03:59:04,118 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 665 transitions. [2024-11-14 03:59:04,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-14 03:59:04,118 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:59:04,119 INFO L215 NwaCegarLoop]: trace histogram [6, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:59:04,139 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-14 03:59:04,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-14 03:59:04,323 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 03:59:04,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:59:04,324 INFO L85 PathProgramCache]: Analyzing trace with hash 900090376, now seen corresponding path program 2 times [2024-11-14 03:59:04,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:59:04,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326107600] [2024-11-14 03:59:04,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:59:04,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:59:04,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:59:04,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [472348328] [2024-11-14 03:59:04,344 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:59:04,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:59:04,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:59:04,348 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:59:04,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-14 03:59:04,425 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-14 03:59:04,425 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:59:04,426 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-14 03:59:04,428 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:59:04,812 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-14 03:59:04,812 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:59:07,312 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:59:07,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326107600] [2024-11-14 03:59:07,312 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:59:07,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [472348328] [2024-11-14 03:59:07,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [472348328] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:59:07,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [839267810] [2024-11-14 03:59:07,314 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-14 03:59:07,314 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:59:07,314 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:59:07,314 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:59:07,314 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:59:16,869 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 03:59:16,870 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 03:59:16,871 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:59:28,157 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '26670#(and (<= 1 |ULTIMATE.start_main_~s~0#1|) (<= 1 |ULTIMATE.start_main_~p~0#1|) (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~q~0#1_157| Int) (|v_ULTIMATE.start_main_~r~0#1_118| Int)) (and (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_157| 9223372036854775808)) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_157| |v_ULTIMATE.start_main_~r~0#1_118|)) (<= 0 (+ 9223372036854775808 |v_ULTIMATE.start_main_~r~0#1_118|)) (<= |v_ULTIMATE.start_main_~q~0#1_157| 0))) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 50) (<= 1 |ULTIMATE.start_main_~a~0#1|) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~b~0#1| 50) (<= (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~s~0#1|) 9223372036854775807) (<= |ULTIMATE.start_main_~y~0#1| 50) (<= 0 (+ 49 |ULTIMATE.start_main_~b~0#1|)))' at error location [2024-11-14 03:59:28,157 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:59:28,158 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:59:28,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-14 03:59:28,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354351101] [2024-11-14 03:59:28,158 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 03:59:28,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:59:28,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:59:28,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:59:28,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=1361, Unknown=1, NotChecked=0, Total=1560 [2024-11-14 03:59:28,159 INFO L87 Difference]: Start difference. First operand 555 states and 665 transitions. Second operand has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 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 03:59:28,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:59:28,452 INFO L93 Difference]: Finished difference Result 563 states and 672 transitions. [2024-11-14 03:59:28,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:59:28,453 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 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 92 [2024-11-14 03:59:28,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:59:28,455 INFO L225 Difference]: With dead ends: 563 [2024-11-14 03:59:28,455 INFO L226 Difference]: Without dead ends: 562 [2024-11-14 03:59:28,456 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 141 SyntacticMatches, 18 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 742 ImplicationChecksByTransitivity, 13.4s TimeCoverageRelationStatistics Valid=198, Invalid=1361, Unknown=1, NotChecked=0, Total=1560 [2024-11-14 03:59:28,456 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 36 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:59:28,456 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 133 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:59:28,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2024-11-14 03:59:28,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 555. [2024-11-14 03:59:28,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 491 states have (on average 1.1323828920570265) internal successors, (556), 498 states have internal predecessors, (556), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-14 03:59:28,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 664 transitions. [2024-11-14 03:59:28,540 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 664 transitions. Word has length 92 [2024-11-14 03:59:28,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:59:28,540 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 664 transitions. [2024-11-14 03:59:28,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 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 03:59:28,540 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 664 transitions. [2024-11-14 03:59:28,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-14 03:59:28,541 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:59:28,541 INFO L215 NwaCegarLoop]: trace histogram [7, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:59:28,562 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-14 03:59:28,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-14 03:59:28,742 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 03:59:28,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:59:28,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1046240501, now seen corresponding path program 2 times [2024-11-14 03:59:28,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:59:28,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095232853] [2024-11-14 03:59:28,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:59:28,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:59:28,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:59:28,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1138688267] [2024-11-14 03:59:28,759 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:59:28,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:59:28,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:59:28,763 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:59:28,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-14 03:59:28,829 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-14 03:59:28,829 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:59:28,832 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-14 03:59:28,834 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:59:29,588 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 2 proven. 50 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-14 03:59:29,588 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:59:29,758 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:59:29,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095232853] [2024-11-14 03:59:29,758 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:59:29,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1138688267] [2024-11-14 03:59:29,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1138688267] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:59:29,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1533058577] [2024-11-14 03:59:29,760 INFO L159 IcfgInterpreter]: Started Sifa with 42 locations of interest [2024-11-14 03:59:29,760 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:59:29,760 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:59:29,760 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:59:29,760 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:59:31,589 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 03:59:31,590 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 03:59:31,591 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:59:35,677 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '28337#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~p~0#1| 1) (<= 0 (+ |ULTIMATE.start_main_~a~0#1| 93)) (<= |ULTIMATE.start_main_~x~0#1| 50) (<= 1 |ULTIMATE.start_main_~b~0#1|) (<= |ULTIMATE.start_main_~a~0#1| 50) (= |ULTIMATE.start_main_~q~0#1| 0) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~b~0#1| 50) (exists ((|v_ULTIMATE.start_main_~r~0#1_126| Int) (|v_ULTIMATE.start_main_~y~0#1_66| Int)) (and (<= 0 (+ 9223372036854775808 |v_ULTIMATE.start_main_~r~0#1_126|)) (<= (+ (* |v_ULTIMATE.start_main_~y~0#1_66| |v_ULTIMATE.start_main_~r~0#1_126|) 9223372036854775809) 0) (<= |v_ULTIMATE.start_main_~y~0#1_66| 50) (<= 1 |v_ULTIMATE.start_main_~y~0#1_66|))) (= |ULTIMATE.start_main_~s~0#1| 1))' at error location [2024-11-14 03:59:35,677 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:59:35,677 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:59:35,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-14 03:59:35,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102824900] [2024-11-14 03:59:35,678 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 03:59:35,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-14 03:59:35,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:59:35,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-14 03:59:35,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=784, Unknown=0, NotChecked=0, Total=930 [2024-11-14 03:59:35,679 INFO L87 Difference]: Start difference. First operand 555 states and 664 transitions. Second operand has 10 states, 8 states have (on average 8.5) internal successors, (68), 9 states have internal predecessors, (68), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-14 03:59:36,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:59:36,271 INFO L93 Difference]: Finished difference Result 601 states and 717 transitions. [2024-11-14 03:59:36,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-14 03:59:36,271 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 8.5) internal successors, (68), 9 states have internal predecessors, (68), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 98 [2024-11-14 03:59:36,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:59:36,273 INFO L225 Difference]: With dead ends: 601 [2024-11-14 03:59:36,273 INFO L226 Difference]: Without dead ends: 600 [2024-11-14 03:59:36,273 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 155 SyntacticMatches, 31 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 776 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=186, Invalid=1074, Unknown=0, NotChecked=0, Total=1260 [2024-11-14 03:59:36,274 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 123 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:59:36,274 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 202 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 03:59:36,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2024-11-14 03:59:36,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 555. [2024-11-14 03:59:36,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 491 states have (on average 1.1303462321792261) internal successors, (555), 498 states have internal predecessors, (555), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-14 03:59:36,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 663 transitions. [2024-11-14 03:59:36,365 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 663 transitions. Word has length 98 [2024-11-14 03:59:36,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:59:36,366 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 663 transitions. [2024-11-14 03:59:36,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 8.5) internal successors, (68), 9 states have internal predecessors, (68), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-14 03:59:36,366 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 663 transitions. [2024-11-14 03:59:36,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-14 03:59:36,367 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:59:36,367 INFO L215 NwaCegarLoop]: trace histogram [7, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:59:36,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-14 03:59:36,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:59:36,571 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 03:59:36,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:59:36,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1170285862, now seen corresponding path program 1 times [2024-11-14 03:59:36,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:59:36,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510966455] [2024-11-14 03:59:36,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:59:36,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:59:36,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:59:36,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1069519868] [2024-11-14 03:59:36,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:59:36,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:59:36,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:59:36,591 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:59:36,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-14 03:59:36,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:59:36,658 INFO L255 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-14 03:59:36,661 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:59:37,326 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 1 proven. 50 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-11-14 03:59:37,326 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:59:38,172 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:59:38,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510966455] [2024-11-14 03:59:38,173 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:59:38,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1069519868] [2024-11-14 03:59:38,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1069519868] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:59:38,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [440613107] [2024-11-14 03:59:38,174 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-14 03:59:38,174 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:59:38,174 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:59:38,174 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:59:38,174 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:59:47,439 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 03:59:47,440 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 03:59:47,441 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:00:02,459 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '30060#(and (<= 1 |ULTIMATE.start_main_~s~0#1|) (<= |ULTIMATE.start_main_~q~0#1| 0) (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~x~0#1_64| Int) (|v_ULTIMATE.start_main_~p~0#1_128| Int)) (and (<= 1 |v_ULTIMATE.start_main_~p~0#1_128|) (<= |v_ULTIMATE.start_main_~x~0#1_64| 50) (<= |v_ULTIMATE.start_main_~p~0#1_128| 9223372036854775807) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~x~0#1_64| |v_ULTIMATE.start_main_~p~0#1_128|)))) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~q~0#1|)) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~s~0#1| 9223372036854775808) (<= 1 |ULTIMATE.start_main_~a~0#1|) (<= |ULTIMATE.start_main_~r~0#1| 0) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~b~0#1| 50) (<= |ULTIMATE.start_main_~y~0#1| 50))' at error location [2024-11-14 04:00:02,459 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:00:02,459 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:00:02,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-14 04:00:02,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308005913] [2024-11-14 04:00:02,459 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 04:00:02,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 04:00:02,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:00:02,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 04:00:02,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=261, Invalid=1901, Unknown=0, NotChecked=0, Total=2162 [2024-11-14 04:00:02,461 INFO L87 Difference]: Start difference. First operand 555 states and 663 transitions. Second operand has 11 states, 9 states have (on average 7.888888888888889) internal successors, (71), 10 states have internal predecessors, (71), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-14 04:00:03,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:00:03,228 INFO L93 Difference]: Finished difference Result 657 states and 787 transitions. [2024-11-14 04:00:03,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 04:00:03,229 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 7.888888888888889) internal successors, (71), 10 states have internal predecessors, (71), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 101 [2024-11-14 04:00:03,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:00:03,231 INFO L225 Difference]: With dead ends: 657 [2024-11-14 04:00:03,231 INFO L226 Difference]: Without dead ends: 656 [2024-11-14 04:00:03,232 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 159 SyntacticMatches, 20 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1311 ImplicationChecksByTransitivity, 15.6s TimeCoverageRelationStatistics Valid=316, Invalid=2654, Unknown=0, NotChecked=0, Total=2970 [2024-11-14 04:00:03,232 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 129 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 04:00:03,233 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 232 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 04:00:03,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 656 states. [2024-11-14 04:00:03,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 656 to 640. [2024-11-14 04:00:03,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 567 states have (on average 1.1305114638447973) internal successors, (641), 574 states have internal predecessors, (641), 63 states have call successors, (63), 2 states have call predecessors, (63), 2 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-14 04:00:03,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 767 transitions. [2024-11-14 04:00:03,347 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 767 transitions. Word has length 101 [2024-11-14 04:00:03,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:00:03,347 INFO L471 AbstractCegarLoop]: Abstraction has 640 states and 767 transitions. [2024-11-14 04:00:03,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 7.888888888888889) internal successors, (71), 10 states have internal predecessors, (71), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-14 04:00:03,347 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 767 transitions. [2024-11-14 04:00:03,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-14 04:00:03,347 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:00:03,348 INFO L215 NwaCegarLoop]: trace histogram [7, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 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 04:00:03,360 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-14 04:00:03,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:00:03,548 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 04:00:03,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:00:03,548 INFO L85 PathProgramCache]: Analyzing trace with hash 36530650, now seen corresponding path program 2 times [2024-11-14 04:00:03,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:00:03,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981188328] [2024-11-14 04:00:03,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:00:03,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:00:03,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:00:03,601 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-14 04:00:03,601 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:00:03,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981188328] [2024-11-14 04:00:03,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981188328] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:00:03,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:00:03,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:00:03,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651322007] [2024-11-14 04:00:03,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:00:03,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:00:03,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:00:03,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:00:03,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:00:03,602 INFO L87 Difference]: Start difference. First operand 640 states and 767 transitions. Second operand has 3 states, 2 states have (on average 30.0) internal successors, (60), 3 states have internal predecessors, (60), 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 04:00:03,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:00:03,938 INFO L93 Difference]: Finished difference Result 643 states and 767 transitions. [2024-11-14 04:00:03,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:00:03,938 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 30.0) internal successors, (60), 3 states have internal predecessors, (60), 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 101 [2024-11-14 04:00:03,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:00:03,940 INFO L225 Difference]: With dead ends: 643 [2024-11-14 04:00:03,940 INFO L226 Difference]: Without dead ends: 642 [2024-11-14 04:00:03,941 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:00:03,941 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 7 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 04:00:03,941 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 78 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 04:00:03,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2024-11-14 04:00:04,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 562. [2024-11-14 04:00:04,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 497 states have (on average 1.1167002012072436) internal successors, (555), 504 states have internal predecessors, (555), 55 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2024-11-14 04:00:04,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 665 transitions. [2024-11-14 04:00:04,035 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 665 transitions. Word has length 101 [2024-11-14 04:00:04,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:00:04,035 INFO L471 AbstractCegarLoop]: Abstraction has 562 states and 665 transitions. [2024-11-14 04:00:04,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 30.0) internal successors, (60), 3 states have internal predecessors, (60), 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 04:00:04,035 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 665 transitions. [2024-11-14 04:00:04,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-14 04:00:04,036 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:00:04,036 INFO L215 NwaCegarLoop]: trace histogram [8, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 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 04:00:04,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-14 04:00:04,037 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 04:00:04,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:00:04,037 INFO L85 PathProgramCache]: Analyzing trace with hash -522923422, now seen corresponding path program 1 times [2024-11-14 04:00:04,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:00:04,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625258637] [2024-11-14 04:00:04,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:00:04,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:00:04,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:00:04,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [75154227] [2024-11-14 04:00:04,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:00:04,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:00:04,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:00:04,057 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:00:04,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-14 04:00:04,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:00:04,124 INFO L255 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-14 04:00:04,126 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:00:04,912 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-11-14 04:00:04,912 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:00:05,055 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:00:05,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625258637] [2024-11-14 04:00:05,055 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:00:05,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [75154227] [2024-11-14 04:00:05,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [75154227] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:00:05,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1843688090] [2024-11-14 04:00:05,056 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-14 04:00:05,057 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:00:05,057 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:00:05,057 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:00:05,057 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:00:15,661 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 04:00:15,662 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:00:15,663 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:00:37,458 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '33370#(and (<= 1 |ULTIMATE.start_main_~s~0#1|) (<= 1 |ULTIMATE.start_main_~p~0#1|) (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~s~0#1| 9223372036854775808) (exists ((|v_ULTIMATE.start_main_~q~0#1_187| Int) (|v_ULTIMATE.start_main_~x~0#1_65| Int)) (and (<= (+ 9223372036854775809 (* |v_ULTIMATE.start_main_~x~0#1_65| |v_ULTIMATE.start_main_~q~0#1_187|)) 0) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_187| 9223372036854775808)) (= (+ (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~y~0#1|) (* |v_ULTIMATE.start_main_~x~0#1_65| |ULTIMATE.start_main_~p~0#1|)) |ULTIMATE.start_main_~a~0#1|) (<= |v_ULTIMATE.start_main_~x~0#1_65| 50) (<= (+ (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~y~0#1|) (* |v_ULTIMATE.start_main_~x~0#1_65| |ULTIMATE.start_main_~p~0#1|)) 9223372036854775807))) (<= 1 |ULTIMATE.start_main_~a~0#1|) (<= |ULTIMATE.start_main_~r~0#1| 0) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~b~0#1| 50) (<= |ULTIMATE.start_main_~y~0#1| 50) (<= |ULTIMATE.start_main_~p~0#1| 9223372036854775807))' at error location [2024-11-14 04:00:37,458 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:00:37,458 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:00:37,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-14 04:00:37,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739997191] [2024-11-14 04:00:37,458 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 04:00:37,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-14 04:00:37,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:00:37,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-14 04:00:37,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=262, Invalid=1807, Unknown=1, NotChecked=0, Total=2070 [2024-11-14 04:00:37,460 INFO L87 Difference]: Start difference. First operand 562 states and 665 transitions. Second operand has 10 states, 8 states have (on average 9.25) internal successors, (74), 10 states have internal predecessors, (74), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-14 04:00:37,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:00:37,908 INFO L93 Difference]: Finished difference Result 643 states and 762 transitions. [2024-11-14 04:00:37,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-14 04:00:37,908 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 9.25) internal successors, (74), 10 states have internal predecessors, (74), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) Word has length 107 [2024-11-14 04:00:37,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:00:37,910 INFO L225 Difference]: With dead ends: 643 [2024-11-14 04:00:37,911 INFO L226 Difference]: Without dead ends: 642 [2024-11-14 04:00:37,912 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 178 SyntacticMatches, 20 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1049 ImplicationChecksByTransitivity, 21.9s TimeCoverageRelationStatistics Valid=273, Invalid=1888, Unknown=1, NotChecked=0, Total=2162 [2024-11-14 04:00:37,912 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 78 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 04:00:37,912 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 255 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 04:00:37,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2024-11-14 04:00:37,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 562. [2024-11-14 04:00:37,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 497 states have (on average 1.1146881287726358) internal successors, (554), 504 states have internal predecessors, (554), 55 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2024-11-14 04:00:37,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 664 transitions. [2024-11-14 04:00:37,986 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 664 transitions. Word has length 107 [2024-11-14 04:00:37,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:00:37,986 INFO L471 AbstractCegarLoop]: Abstraction has 562 states and 664 transitions. [2024-11-14 04:00:37,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 9.25) internal successors, (74), 10 states have internal predecessors, (74), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-14 04:00:37,986 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 664 transitions. [2024-11-14 04:00:37,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-14 04:00:37,987 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:00:37,987 INFO L215 NwaCegarLoop]: trace histogram [9, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:00:38,000 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-14 04:00:38,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:00:38,188 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 04:00:38,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:00:38,188 INFO L85 PathProgramCache]: Analyzing trace with hash -515643519, now seen corresponding path program 1 times [2024-11-14 04:00:38,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:00:38,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809262188] [2024-11-14 04:00:38,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:00:38,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:00:38,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:00:38,340 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-14 04:00:38,340 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:00:38,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809262188] [2024-11-14 04:00:38,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809262188] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:00:38,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1606916388] [2024-11-14 04:00:38,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:00:38,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:00:38,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:00:38,343 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:00:38,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-14 04:00:38,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:00:38,413 INFO L255 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 04:00:38,415 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:00:38,877 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-14 04:00:38,877 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:00:39,262 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-14 04:00:39,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1606916388] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:00:39,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1396507444] [2024-11-14 04:00:39,264 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-14 04:00:39,264 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:00:39,265 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:00:39,265 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:00:39,265 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:00:48,453 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 04:00:48,454 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:00:48,455 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:01:04,080 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '35503#(exists ((|v_ULTIMATE.start_main_~p~0#1_141| Int) (|v_ULTIMATE.start_main_~q~0#1_204| Int)) (and (<= 1 |ULTIMATE.start_main_~s~0#1|) (<= 0 |ULTIMATE.start_main_~b~0#1|) (<= 1 |#StackHeapBarrier|) (<= (+ |v_ULTIMATE.start_main_~q~0#1_204| 9223372036854775808) |v_ULTIMATE.start_main_~p~0#1_141|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~b~0#1| 49) (<= |ULTIMATE.start_main_~x~0#1| 50) (<= |ULTIMATE.start_main_~a~0#1| 50) (<= 1 |ULTIMATE.start_main_~a~0#1|) (<= |ULTIMATE.start_main_~r~0#1| 0) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= 1 |v_ULTIMATE.start_main_~p~0#1_141|) (<= |v_ULTIMATE.start_main_~q~0#1_204| 0) (<= |ULTIMATE.start_main_~y~0#1| 50)))' at error location [2024-11-14 04:01:04,080 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:01:04,080 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:01:04,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-14 04:01:04,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859266047] [2024-11-14 04:01:04,081 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 04:01:04,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 04:01:04,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:01:04,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 04:01:04,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=235, Invalid=1657, Unknown=0, NotChecked=0, Total=1892 [2024-11-14 04:01:04,083 INFO L87 Difference]: Start difference. First operand 562 states and 664 transitions. Second operand has 11 states, 10 states have (on average 24.4) internal successors, (244), 11 states have internal predecessors, (244), 10 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 10 states have call predecessors, (31), 10 states have call successors, (31) [2024-11-14 04:01:04,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:01:04,604 INFO L93 Difference]: Finished difference Result 1224 states and 1466 transitions. [2024-11-14 04:01:04,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-14 04:01:04,605 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 24.4) internal successors, (244), 11 states have internal predecessors, (244), 10 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 10 states have call predecessors, (31), 10 states have call successors, (31) Word has length 121 [2024-11-14 04:01:04,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:01:04,608 INFO L225 Difference]: With dead ends: 1224 [2024-11-14 04:01:04,608 INFO L226 Difference]: Without dead ends: 1223 [2024-11-14 04:01:04,609 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 299 SyntacticMatches, 24 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1527 ImplicationChecksByTransitivity, 15.7s TimeCoverageRelationStatistics Valid=269, Invalid=1893, Unknown=0, NotChecked=0, Total=2162 [2024-11-14 04:01:04,609 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 100 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 04:01:04,609 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 272 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 04:01:04,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1223 states. [2024-11-14 04:01:04,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1223 to 1169. [2024-11-14 04:01:04,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1169 states, 1046 states have (on average 1.1367112810707456) internal successors, (1189), 1053 states have internal predecessors, (1189), 113 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2024-11-14 04:01:04,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1169 states to 1169 states and 1415 transitions. [2024-11-14 04:01:04,737 INFO L78 Accepts]: Start accepts. Automaton has 1169 states and 1415 transitions. Word has length 121 [2024-11-14 04:01:04,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:01:04,738 INFO L471 AbstractCegarLoop]: Abstraction has 1169 states and 1415 transitions. [2024-11-14 04:01:04,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 24.4) internal successors, (244), 11 states have internal predecessors, (244), 10 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 10 states have call predecessors, (31), 10 states have call successors, (31) [2024-11-14 04:01:04,738 INFO L276 IsEmpty]: Start isEmpty. Operand 1169 states and 1415 transitions. [2024-11-14 04:01:04,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-14 04:01:04,739 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:01:04,739 INFO L215 NwaCegarLoop]: trace histogram [9, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:01:04,752 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-11-14 04:01:04,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:01:04,940 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 04:01:04,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:01:04,940 INFO L85 PathProgramCache]: Analyzing trace with hash 701900063, now seen corresponding path program 3 times [2024-11-14 04:01:04,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:01:04,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318884212] [2024-11-14 04:01:04,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:01:04,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:01:04,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:01:04,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [769611018] [2024-11-14 04:01:04,970 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 04:01:04,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:01:04,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:01:04,977 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:01:04,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-14 04:01:05,059 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 04:01:05,059 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:01:05,060 INFO L255 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-14 04:01:05,063 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:01:05,957 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 8 proven. 90 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-11-14 04:01:05,957 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:01:06,620 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:01:06,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318884212] [2024-11-14 04:01:06,620 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:01:06,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [769611018] [2024-11-14 04:01:06,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [769611018] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:01:06,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1802940963] [2024-11-14 04:01:06,621 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-14 04:01:06,621 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:01:06,622 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:01:06,622 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:01:06,622 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:01:16,574 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 04:01:16,574 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:01:16,576 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:01:32,877 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '38671#(and (<= |ULTIMATE.start_main_~q~0#1| 0) (<= 1 |#StackHeapBarrier|) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~q~0#1|)) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 50) (exists ((|v_ULTIMATE.start_main_~s~0#1_214| Int) (|v_ULTIMATE.start_main_~p~0#1_148| Int)) (and (<= |v_ULTIMATE.start_main_~p~0#1_148| 9223372036854775807) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~s~0#1_214| |v_ULTIMATE.start_main_~p~0#1_148|)) (<= 1 |v_ULTIMATE.start_main_~s~0#1_214|) (<= |v_ULTIMATE.start_main_~s~0#1_214| 9223372036854775808))) (<= 1 |ULTIMATE.start_main_~a~0#1|) (<= |ULTIMATE.start_main_~r~0#1| 0) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~y~0#1| 50))' at error location [2024-11-14 04:01:32,878 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:01:32,878 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:01:32,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-14 04:01:32,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680336655] [2024-11-14 04:01:32,878 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 04:01:32,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-14 04:01:32,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:01:32,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-14 04:01:32,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=318, Invalid=2034, Unknown=0, NotChecked=0, Total=2352 [2024-11-14 04:01:32,880 INFO L87 Difference]: Start difference. First operand 1169 states and 1415 transitions. Second operand has 14 states, 11 states have (on average 8.272727272727273) internal successors, (91), 13 states have internal predecessors, (91), 6 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-14 04:01:33,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:01:33,913 INFO L93 Difference]: Finished difference Result 1212 states and 1463 transitions. [2024-11-14 04:01:33,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-14 04:01:33,914 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 8.272727272727273) internal successors, (91), 13 states have internal predecessors, (91), 6 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) Word has length 126 [2024-11-14 04:01:33,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:01:33,919 INFO L225 Difference]: With dead ends: 1212 [2024-11-14 04:01:33,919 INFO L226 Difference]: Without dead ends: 1211 [2024-11-14 04:01:33,921 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 191 SyntacticMatches, 25 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1909 ImplicationChecksByTransitivity, 17.0s TimeCoverageRelationStatistics Valid=455, Invalid=2967, Unknown=0, NotChecked=0, Total=3422 [2024-11-14 04:01:33,922 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 250 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 04:01:33,923 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 117 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 04:01:33,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1211 states. [2024-11-14 04:01:34,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1211 to 1178. [2024-11-14 04:01:34,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1178 states, 1055 states have (on average 1.1355450236966824) internal successors, (1198), 1062 states have internal predecessors, (1198), 113 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2024-11-14 04:01:34,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1178 states to 1178 states and 1424 transitions. [2024-11-14 04:01:34,176 INFO L78 Accepts]: Start accepts. Automaton has 1178 states and 1424 transitions. Word has length 126 [2024-11-14 04:01:34,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:01:34,177 INFO L471 AbstractCegarLoop]: Abstraction has 1178 states and 1424 transitions. [2024-11-14 04:01:34,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 8.272727272727273) internal successors, (91), 13 states have internal predecessors, (91), 6 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-14 04:01:34,178 INFO L276 IsEmpty]: Start isEmpty. Operand 1178 states and 1424 transitions. [2024-11-14 04:01:34,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-14 04:01:34,179 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:01:34,179 INFO L215 NwaCegarLoop]: trace histogram [9, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:01:34,206 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-14 04:01:34,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-14 04:01:34,383 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 04:01:34,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:01:34,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1519716833, now seen corresponding path program 4 times [2024-11-14 04:01:34,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:01:34,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202321449] [2024-11-14 04:01:34,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:01:34,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:01:34,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:01:34,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1930974065] [2024-11-14 04:01:34,409 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-14 04:01:34,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:01:34,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:01:34,411 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:01:34,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-14 04:01:34,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:01:34,507 INFO L255 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-14 04:01:34,509 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:01:35,188 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-14 04:01:35,189 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:01:35,747 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:01:35,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202321449] [2024-11-14 04:01:35,748 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:01:35,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1930974065] [2024-11-14 04:01:35,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1930974065] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:01:35,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [993385852] [2024-11-14 04:01:35,749 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-14 04:01:35,749 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:01:35,749 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:01:35,750 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:01:35,750 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:01:45,814 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 04:01:45,815 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:01:45,816 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:02:04,759 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '41847#(and (<= |ULTIMATE.start_main_~q~0#1| 0) (<= 1 |#StackHeapBarrier|) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~q~0#1|)) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 50) (<= 1 |ULTIMATE.start_main_~a~0#1|) (<= |ULTIMATE.start_main_~r~0#1| 0) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~r~0#1|)) (exists ((|v_ULTIMATE.start_main_~s~0#1_231| Int) (|v_ULTIMATE.start_main_~p~0#1_154| Int)) (and (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~s~0#1_231| |v_ULTIMATE.start_main_~p~0#1_154|)) (<= |v_ULTIMATE.start_main_~s~0#1_231| 9223372036854775808) (<= 1 |v_ULTIMATE.start_main_~p~0#1_154|) (<= |v_ULTIMATE.start_main_~p~0#1_154| 9223372036854775807))) (<= |ULTIMATE.start_main_~b~0#1| 50) (<= |ULTIMATE.start_main_~y~0#1| 50))' at error location [2024-11-14 04:02:04,759 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:02:04,759 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:02:04,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-14 04:02:04,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244375444] [2024-11-14 04:02:04,760 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 04:02:04,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 04:02:04,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:02:04,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 04:02:04,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=223, Invalid=1499, Unknown=0, NotChecked=0, Total=1722 [2024-11-14 04:02:04,761 INFO L87 Difference]: Start difference. First operand 1178 states and 1424 transitions. Second operand has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 7 states have internal predecessors, (89), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-14 04:02:05,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:02:05,313 INFO L93 Difference]: Finished difference Result 1185 states and 1428 transitions. [2024-11-14 04:02:05,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 04:02:05,314 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 7 states have internal predecessors, (89), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 126 [2024-11-14 04:02:05,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:02:05,316 INFO L225 Difference]: With dead ends: 1185 [2024-11-14 04:02:05,316 INFO L226 Difference]: Without dead ends: 1184 [2024-11-14 04:02:05,317 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 198 SyntacticMatches, 25 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1040 ImplicationChecksByTransitivity, 19.1s TimeCoverageRelationStatistics Valid=223, Invalid=1499, Unknown=0, NotChecked=0, Total=1722 [2024-11-14 04:02:05,318 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 43 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 04:02:05,318 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 270 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 04:02:05,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1184 states. [2024-11-14 04:02:05,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1184 to 1178. [2024-11-14 04:02:05,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1178 states, 1055 states have (on average 1.1345971563981043) internal successors, (1197), 1062 states have internal predecessors, (1197), 113 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2024-11-14 04:02:05,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1178 states to 1178 states and 1423 transitions. [2024-11-14 04:02:05,446 INFO L78 Accepts]: Start accepts. Automaton has 1178 states and 1423 transitions. Word has length 126 [2024-11-14 04:02:05,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:02:05,447 INFO L471 AbstractCegarLoop]: Abstraction has 1178 states and 1423 transitions. [2024-11-14 04:02:05,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 7 states have internal predecessors, (89), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-14 04:02:05,447 INFO L276 IsEmpty]: Start isEmpty. Operand 1178 states and 1423 transitions. [2024-11-14 04:02:05,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-14 04:02:05,448 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:02:05,448 INFO L215 NwaCegarLoop]: trace histogram [9, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:02:05,463 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-11-14 04:02:05,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-14 04:02:05,648 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 04:02:05,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:02:05,649 INFO L85 PathProgramCache]: Analyzing trace with hash -2112781395, now seen corresponding path program 5 times [2024-11-14 04:02:05,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:02:05,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816244462] [2024-11-14 04:02:05,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:02:05,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:02:05,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:02:05,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [506297550] [2024-11-14 04:02:05,674 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 04:02:05,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:02:05,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:02:05,678 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:02:05,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-14 04:02:05,754 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-14 04:02:05,754 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:02:05,755 INFO L255 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-14 04:02:05,758 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:02:06,291 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 6 proven. 65 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-14 04:02:06,291 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:02:06,853 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:02:06,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816244462] [2024-11-14 04:02:06,854 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:02:06,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [506297550] [2024-11-14 04:02:06,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [506297550] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:02:06,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1340866541] [2024-11-14 04:02:06,855 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-14 04:02:06,855 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:02:06,855 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:02:06,855 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:02:06,855 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:02:17,014 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 04:02:17,015 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:02:17,017 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:02:32,022 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '44974#(and (<= 0 |ULTIMATE.start_main_~b~0#1|) (<= |ULTIMATE.start_main_~q~0#1| 0) (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~p~0#1_162| Int) (|v_ULTIMATE.start_main_~s~0#1_245| Int)) (and (<= 1 |v_ULTIMATE.start_main_~p~0#1_162|) (<= |v_ULTIMATE.start_main_~p~0#1_162| 9223372036854775807) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~s~0#1_245| |v_ULTIMATE.start_main_~p~0#1_162|)) (<= |v_ULTIMATE.start_main_~s~0#1_245| 9223372036854775808))) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~q~0#1|)) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 50) (<= |ULTIMATE.start_main_~a~0#1| 50) (<= 1 |ULTIMATE.start_main_~a~0#1|) (<= |ULTIMATE.start_main_~r~0#1| 0) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~b~0#1| 50) (<= |ULTIMATE.start_main_~y~0#1| 50))' at error location [2024-11-14 04:02:32,023 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:02:32,023 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:02:32,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-14 04:02:32,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637995598] [2024-11-14 04:02:32,023 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 04:02:32,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 04:02:32,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:02:32,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 04:02:32,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=220, Invalid=1502, Unknown=0, NotChecked=0, Total=1722 [2024-11-14 04:02:32,024 INFO L87 Difference]: Start difference. First operand 1178 states and 1423 transitions. Second operand has 8 states, 6 states have (on average 11.666666666666666) internal successors, (70), 8 states have internal predecessors, (70), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-14 04:02:32,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:02:32,528 INFO L93 Difference]: Finished difference Result 1294 states and 1564 transitions. [2024-11-14 04:02:32,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 04:02:32,529 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 11.666666666666666) internal successors, (70), 8 states have internal predecessors, (70), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) Word has length 126 [2024-11-14 04:02:32,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:02:32,533 INFO L225 Difference]: With dead ends: 1294 [2024-11-14 04:02:32,533 INFO L226 Difference]: Without dead ends: 1292 [2024-11-14 04:02:32,534 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 198 SyntacticMatches, 25 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1052 ImplicationChecksByTransitivity, 15.3s TimeCoverageRelationStatistics Valid=250, Invalid=1820, Unknown=0, NotChecked=0, Total=2070 [2024-11-14 04:02:32,534 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 188 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 04:02:32,534 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 213 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 04:02:32,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1292 states. [2024-11-14 04:02:32,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1292 to 1268. [2024-11-14 04:02:32,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1268 states, 1136 states have (on average 1.1338028169014085) internal successors, (1288), 1143 states have internal predecessors, (1288), 122 states have call successors, (122), 2 states have call predecessors, (122), 2 states have return successors, (122), 122 states have call predecessors, (122), 122 states have call successors, (122) [2024-11-14 04:02:32,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1268 states to 1268 states and 1532 transitions. [2024-11-14 04:02:32,673 INFO L78 Accepts]: Start accepts. Automaton has 1268 states and 1532 transitions. Word has length 126 [2024-11-14 04:02:32,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:02:32,673 INFO L471 AbstractCegarLoop]: Abstraction has 1268 states and 1532 transitions. [2024-11-14 04:02:32,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 11.666666666666666) internal successors, (70), 8 states have internal predecessors, (70), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-14 04:02:32,673 INFO L276 IsEmpty]: Start isEmpty. Operand 1268 states and 1532 transitions. [2024-11-14 04:02:32,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-14 04:02:32,674 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:02:32,675 INFO L215 NwaCegarLoop]: trace histogram [9, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:02:32,694 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-11-14 04:02:32,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-14 04:02:32,875 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 04:02:32,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:02:32,876 INFO L85 PathProgramCache]: Analyzing trace with hash -950938451, now seen corresponding path program 6 times [2024-11-14 04:02:32,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:02:32,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455309863] [2024-11-14 04:02:32,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:02:32,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:02:32,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:02:32,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [553666038] [2024-11-14 04:02:32,914 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 04:02:32,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:02:32,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:02:32,916 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:02:32,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-14 04:02:33,181 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 04:02:33,181 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:02:33,182 INFO L255 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-14 04:02:33,185 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:02:36,005 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 8 proven. 87 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-14 04:02:36,005 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:02:36,742 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:02:36,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455309863] [2024-11-14 04:02:36,742 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:02:36,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [553666038] [2024-11-14 04:02:36,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [553666038] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:02:36,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1311577607] [2024-11-14 04:02:36,743 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-14 04:02:36,744 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:02:36,744 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:02:36,744 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:02:36,744 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:02:45,369 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 04:02:45,369 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:02:45,370 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:03:07,916 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '48339#(and (<= |ULTIMATE.start_main_~q~0#1| 0) (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~s~0#1_262| Int) (|v_ULTIMATE.start_main_~p~0#1_170| Int)) (and (<= 1 |v_ULTIMATE.start_main_~s~0#1_262|) (<= |v_ULTIMATE.start_main_~s~0#1_262| 9223372036854775808) (<= |v_ULTIMATE.start_main_~p~0#1_170| 9223372036854775807) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~s~0#1_262| |v_ULTIMATE.start_main_~p~0#1_170|)))) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~q~0#1|)) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 50) (<= 1 |ULTIMATE.start_main_~a~0#1|) (<= |ULTIMATE.start_main_~r~0#1| 0) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~b~0#1| 50) (<= |ULTIMATE.start_main_~y~0#1| 50))' at error location [2024-11-14 04:03:07,917 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:03:07,917 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:03:07,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-14 04:03:07,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386273050] [2024-11-14 04:03:07,917 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 04:03:07,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-14 04:03:07,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:03:07,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-14 04:03:07,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=250, Invalid=2198, Unknown=2, NotChecked=0, Total=2450 [2024-11-14 04:03:07,918 INFO L87 Difference]: Start difference. First operand 1268 states and 1532 transitions. Second operand has 14 states, 12 states have (on average 7.5) internal successors, (90), 14 states have internal predecessors, (90), 4 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-14 04:03:13,237 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 04:03:16,356 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 04:03:17,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:03:17,082 INFO L93 Difference]: Finished difference Result 1272 states and 1533 transitions. [2024-11-14 04:03:17,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-14 04:03:17,082 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 7.5) internal successors, (90), 14 states have internal predecessors, (90), 4 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) Word has length 126 [2024-11-14 04:03:17,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:03:17,086 INFO L225 Difference]: With dead ends: 1272 [2024-11-14 04:03:17,086 INFO L226 Difference]: Without dead ends: 1271 [2024-11-14 04:03:17,086 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 190 SyntacticMatches, 25 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1246 ImplicationChecksByTransitivity, 24.2s TimeCoverageRelationStatistics Valid=260, Invalid=2288, Unknown=2, NotChecked=0, Total=2550 [2024-11-14 04:03:17,087 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 75 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 1309 mSolverCounterSat, 8 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 1323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1309 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2024-11-14 04:03:17,087 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 287 Invalid, 1323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1309 Invalid, 6 Unknown, 0 Unchecked, 8.8s Time] [2024-11-14 04:03:17,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1271 states. [2024-11-14 04:03:17,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1271 to 1268. [2024-11-14 04:03:17,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1268 states, 1136 states have (on average 1.1329225352112675) internal successors, (1287), 1143 states have internal predecessors, (1287), 122 states have call successors, (122), 2 states have call predecessors, (122), 2 states have return successors, (122), 122 states have call predecessors, (122), 122 states have call successors, (122) [2024-11-14 04:03:17,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1268 states to 1268 states and 1531 transitions. [2024-11-14 04:03:17,218 INFO L78 Accepts]: Start accepts. Automaton has 1268 states and 1531 transitions. Word has length 126 [2024-11-14 04:03:17,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:03:17,218 INFO L471 AbstractCegarLoop]: Abstraction has 1268 states and 1531 transitions. [2024-11-14 04:03:17,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 7.5) internal successors, (90), 14 states have internal predecessors, (90), 4 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-14 04:03:17,219 INFO L276 IsEmpty]: Start isEmpty. Operand 1268 states and 1531 transitions. [2024-11-14 04:03:17,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-14 04:03:17,219 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:03:17,219 INFO L215 NwaCegarLoop]: trace histogram [9, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:03:17,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2024-11-14 04:03:17,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-14 04:03:17,420 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 04:03:17,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:03:17,420 INFO L85 PathProgramCache]: Analyzing trace with hash -158994207, now seen corresponding path program 3 times [2024-11-14 04:03:17,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:03:17,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029205623] [2024-11-14 04:03:17,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:03:17,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:03:17,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:03:17,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1335648046] [2024-11-14 04:03:17,446 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 04:03:17,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:03:17,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:03:17,448 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:03:17,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-14 04:03:17,532 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 04:03:17,532 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:03:17,533 INFO L255 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-14 04:03:17,536 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:03:18,245 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-14 04:03:18,245 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:03:20,872 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-14 04:03:20,872 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:03:20,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029205623] [2024-11-14 04:03:20,872 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:03:20,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1335648046] [2024-11-14 04:03:20,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1335648046] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:03:20,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [62982249] [2024-11-14 04:03:20,874 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-14 04:03:20,874 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:03:20,874 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:03:20,875 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:03:20,875 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:03:31,561 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 04:03:31,562 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:03:31,563 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:03:56,732 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '52021#(and (<= 1 |ULTIMATE.start_main_~s~0#1|) (<= 0 |ULTIMATE.start_main_~b~0#1|) (<= 1 |ULTIMATE.start_main_~p~0#1|) (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 50) (<= |ULTIMATE.start_main_~a~0#1| 50) (<= 1 |ULTIMATE.start_main_~a~0#1|) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~b~0#1| 50) (<= (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~s~0#1|) 9223372036854775807) (exists ((|v_ULTIMATE.start_main_~q~0#1_282| Int) (|v_ULTIMATE.start_main_~r~0#1_171| Int)) (and (<= |v_ULTIMATE.start_main_~r~0#1_171| 0) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_282| 9223372036854775808)) (<= 0 (+ 9223372036854775808 |v_ULTIMATE.start_main_~r~0#1_171|)) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_282| |v_ULTIMATE.start_main_~r~0#1_171|)))) (<= |ULTIMATE.start_main_~y~0#1| 50))' at error location [2024-11-14 04:03:56,732 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:03:56,732 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 04:03:56,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 12 [2024-11-14 04:03:56,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058446155] [2024-11-14 04:03:56,733 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 04:03:56,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-14 04:03:56,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:03:56,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-14 04:03:56,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=1841, Unknown=1, NotChecked=0, Total=2070 [2024-11-14 04:03:56,734 INFO L87 Difference]: Start difference. First operand 1268 states and 1531 transitions. Second operand has 13 states, 12 states have (on average 14.833333333333334) internal successors, (178), 13 states have internal predecessors, (178), 7 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) [2024-11-14 04:03:59,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 04:04:00,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 04:04:02,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 04:04:12,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:04:12,593 INFO L93 Difference]: Finished difference Result 1336 states and 1610 transitions. [2024-11-14 04:04:12,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-14 04:04:12,594 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 14.833333333333334) internal successors, (178), 13 states have internal predecessors, (178), 7 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) Word has length 128 [2024-11-14 04:04:12,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:04:12,598 INFO L225 Difference]: With dead ends: 1336 [2024-11-14 04:04:12,598 INFO L226 Difference]: Without dead ends: 1335 [2024-11-14 04:04:12,599 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 312 SyntacticMatches, 26 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1508 ImplicationChecksByTransitivity, 28.4s TimeCoverageRelationStatistics Valid=351, Invalid=2840, Unknown=1, NotChecked=0, Total=3192 [2024-11-14 04:04:12,600 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 274 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 940 mSolverCounterSat, 47 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 940 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2024-11-14 04:04:12,600 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 434 Invalid, 988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 940 Invalid, 1 Unknown, 0 Unchecked, 13.7s Time] [2024-11-14 04:04:12,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1335 states. [2024-11-14 04:04:12,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1335 to 1330. [2024-11-14 04:04:12,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1330 states, 1195 states have (on average 1.1288702928870293) internal successors, (1349), 1202 states have internal predecessors, (1349), 125 states have call successors, (125), 2 states have call predecessors, (125), 2 states have return successors, (125), 125 states have call predecessors, (125), 125 states have call successors, (125) [2024-11-14 04:04:12,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1330 states to 1330 states and 1599 transitions. [2024-11-14 04:04:12,780 INFO L78 Accepts]: Start accepts. Automaton has 1330 states and 1599 transitions. Word has length 128 [2024-11-14 04:04:12,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:04:12,780 INFO L471 AbstractCegarLoop]: Abstraction has 1330 states and 1599 transitions. [2024-11-14 04:04:12,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 14.833333333333334) internal successors, (178), 13 states have internal predecessors, (178), 7 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) [2024-11-14 04:04:12,780 INFO L276 IsEmpty]: Start isEmpty. Operand 1330 states and 1599 transitions. [2024-11-14 04:04:12,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-14 04:04:12,781 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:04:12,781 INFO L215 NwaCegarLoop]: trace histogram [9, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:04:12,806 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-11-14 04:04:12,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-14 04:04:12,982 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 04:04:12,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:04:12,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1136612079, now seen corresponding path program 4 times [2024-11-14 04:04:12,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:04:12,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140837532] [2024-11-14 04:04:12,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:04:12,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:04:13,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:04:13,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [389413555] [2024-11-14 04:04:13,008 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-14 04:04:13,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:04:13,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:04:13,011 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:04:13,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-14 04:04:13,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:04:13,113 INFO L255 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-14 04:04:13,116 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:04:14,051 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-14 04:04:14,051 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:04:14,786 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:04:14,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140837532] [2024-11-14 04:04:14,786 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:04:14,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [389413555] [2024-11-14 04:04:14,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [389413555] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:04:14,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1572914007] [2024-11-14 04:04:14,788 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-14 04:04:14,788 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:04:14,788 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:04:14,788 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:04:14,788 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:04:25,151 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 04:04:25,152 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:04:25,153 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:04:50,192 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '55522#(and (<= 1 |ULTIMATE.start_main_~s~0#1|) (<= 1 |ULTIMATE.start_main_~p~0#1|) (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 50) (exists ((|v_ULTIMATE.start_main_~r~0#1_179| Int) (|v_ULTIMATE.start_main_~q~0#1_297| Int)) (and (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_297| 9223372036854775808)) (<= 0 (+ 9223372036854775808 |v_ULTIMATE.start_main_~r~0#1_179|)) (<= |v_ULTIMATE.start_main_~q~0#1_297| 0) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_297| |v_ULTIMATE.start_main_~r~0#1_179|)))) (<= 1 |ULTIMATE.start_main_~a~0#1|) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~b~0#1| 50) (<= (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~s~0#1|) 9223372036854775807) (<= |ULTIMATE.start_main_~y~0#1| 50))' at error location [2024-11-14 04:04:50,192 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:04:50,192 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:04:50,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-14 04:04:50,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076919803] [2024-11-14 04:04:50,193 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 04:04:50,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 04:04:50,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:04:50,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 04:04:50,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=1512, Unknown=1, NotChecked=0, Total=1722 [2024-11-14 04:04:50,194 INFO L87 Difference]: Start difference. First operand 1330 states and 1599 transitions. Second operand has 7 states, 6 states have (on average 15.166666666666666) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-14 04:04:50,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:04:50,812 INFO L93 Difference]: Finished difference Result 1332 states and 1599 transitions. [2024-11-14 04:04:50,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 04:04:50,812 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.166666666666666) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 128 [2024-11-14 04:04:50,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:04:50,817 INFO L225 Difference]: With dead ends: 1332 [2024-11-14 04:04:50,817 INFO L226 Difference]: Without dead ends: 1331 [2024-11-14 04:04:50,818 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 203 SyntacticMatches, 26 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1018 ImplicationChecksByTransitivity, 25.2s TimeCoverageRelationStatistics Valid=209, Invalid=1512, Unknown=1, NotChecked=0, Total=1722 [2024-11-14 04:04:50,819 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 44 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 04:04:50,819 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 203 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 04:04:50,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1331 states. [2024-11-14 04:04:51,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1331 to 1330. [2024-11-14 04:04:51,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1330 states, 1195 states have (on average 1.1280334728033472) internal successors, (1348), 1202 states have internal predecessors, (1348), 125 states have call successors, (125), 2 states have call predecessors, (125), 2 states have return successors, (125), 125 states have call predecessors, (125), 125 states have call successors, (125) [2024-11-14 04:04:51,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1330 states to 1330 states and 1598 transitions. [2024-11-14 04:04:51,058 INFO L78 Accepts]: Start accepts. Automaton has 1330 states and 1598 transitions. Word has length 128 [2024-11-14 04:04:51,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:04:51,058 INFO L471 AbstractCegarLoop]: Abstraction has 1330 states and 1598 transitions. [2024-11-14 04:04:51,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.166666666666666) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-14 04:04:51,058 INFO L276 IsEmpty]: Start isEmpty. Operand 1330 states and 1598 transitions. [2024-11-14 04:04:51,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-14 04:04:51,060 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:04:51,060 INFO L215 NwaCegarLoop]: trace histogram [9, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:04:51,076 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2024-11-14 04:04:51,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-14 04:04:51,260 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 04:04:51,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:04:51,261 INFO L85 PathProgramCache]: Analyzing trace with hash -319421983, now seen corresponding path program 5 times [2024-11-14 04:04:51,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:04:51,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738568607] [2024-11-14 04:04:51,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:04:51,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:04:51,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:04:51,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [53205657] [2024-11-14 04:04:51,284 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 04:04:51,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:04:51,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:04:51,286 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:04:51,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-14 04:04:51,364 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-14 04:04:51,364 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:04:51,365 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-14 04:04:51,367 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:04:58,993 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 67 proven. 4 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-14 04:04:58,993 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:05:03,957 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 59 proven. 2 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-14 04:05:03,957 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:05:03,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738568607] [2024-11-14 04:05:03,957 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:05:03,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [53205657] [2024-11-14 04:05:03,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [53205657] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:05:03,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1515193112] [2024-11-14 04:05:03,958 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-14 04:05:03,958 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:05:03,959 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:05:03,959 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:05:03,959 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:05:12,866 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 04:05:12,867 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:05:12,868 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:06:18,581 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '59340#(and (<= 1 |ULTIMATE.start_main_~s~0#1|) (<= 0 |ULTIMATE.start_main_~b~0#1|) (<= 1 |ULTIMATE.start_main_~p~0#1|) (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~q~0#1_315| Int) (|v_ULTIMATE.start_main_~r~0#1_186| Int)) (and (<= |v_ULTIMATE.start_main_~r~0#1_186| 0) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_315| 9223372036854775808)) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_315| |v_ULTIMATE.start_main_~r~0#1_186|)) (<= 0 (+ 9223372036854775808 |v_ULTIMATE.start_main_~r~0#1_186|)))) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 50) (<= |ULTIMATE.start_main_~a~0#1| 50) (<= 1 |ULTIMATE.start_main_~a~0#1|) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~b~0#1| 50) (<= (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~s~0#1|) 9223372036854775807) (<= |ULTIMATE.start_main_~y~0#1| 50))' at error location [2024-11-14 04:06:18,581 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:06:18,581 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 04:06:18,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 12 [2024-11-14 04:06:18,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799678597] [2024-11-14 04:06:18,581 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 04:06:18,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-14 04:06:18,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:06:18,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-14 04:06:18,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=235, Invalid=1740, Unknown=5, NotChecked=0, Total=1980 [2024-11-14 04:06:18,583 INFO L87 Difference]: Start difference. First operand 1330 states and 1598 transitions. Second operand has 13 states, 11 states have (on average 8.636363636363637) internal successors, (95), 13 states have internal predecessors, (95), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-14 04:06:22,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:06:24,430 WARN L539 Checker$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 04:06:26,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:06:28,470 WARN L539 Checker$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 04:06:30,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:06:32,522 WARN L539 Checker$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 04:06:34,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:06:36,569 WARN L539 Checker$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 04:06:38,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:06:40,645 WARN L539 Checker$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 04:06:42,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:06:44,708 WARN L539 Checker$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 04:06:46,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:06:48,720 WARN L539 Checker$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 04:06:50,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:06:52,772 WARN L539 Checker$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 04:06:54,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:06:56,793 WARN L539 Checker$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 04:06:58,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:07:00,799 WARN L539 Checker$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 04:07:02,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:07:04,813 WARN L539 Checker$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 04:07:06,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:07:08,842 WARN L539 Checker$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 04:07:10,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:07:12,855 WARN L539 Checker$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 04:07:15,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:07:17,277 WARN L539 Checker$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 04:07:19,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:07:22,270 WARN L539 Checker$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 04:07:25,898 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 04:07:26,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:07:26,741 INFO L93 Difference]: Finished difference Result 1368 states and 1642 transitions. [2024-11-14 04:07:26,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-14 04:07:26,742 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 8.636363636363637) internal successors, (95), 13 states have internal predecessors, (95), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 128 [2024-11-14 04:07:26,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:07:26,745 INFO L225 Difference]: With dead ends: 1368 [2024-11-14 04:07:26,745 INFO L226 Difference]: Without dead ends: 1367 [2024-11-14 04:07:26,746 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 313 SyntacticMatches, 26 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1394 ImplicationChecksByTransitivity, 77.9s TimeCoverageRelationStatistics Valid=283, Invalid=2064, Unknown=5, NotChecked=0, Total=2352 [2024-11-14 04:07:26,746 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 192 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 34 mSolverCounterUnsat, 31 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 66.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 31 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 66.4s IncrementalHoareTripleChecker+Time [2024-11-14 04:07:26,746 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 145 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 278 Invalid, 31 Unknown, 0 Unchecked, 66.4s Time] [2024-11-14 04:07:26,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1367 states. [2024-11-14 04:07:26,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1367 to 1268. [2024-11-14 04:07:26,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1268 states, 1136 states have (on average 1.118838028169014) internal successors, (1271), 1143 states have internal predecessors, (1271), 122 states have call successors, (122), 2 states have call predecessors, (122), 2 states have return successors, (122), 122 states have call predecessors, (122), 122 states have call successors, (122) [2024-11-14 04:07:26,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1268 states to 1268 states and 1515 transitions. [2024-11-14 04:07:26,901 INFO L78 Accepts]: Start accepts. Automaton has 1268 states and 1515 transitions. Word has length 128 [2024-11-14 04:07:26,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:07:26,902 INFO L471 AbstractCegarLoop]: Abstraction has 1268 states and 1515 transitions. [2024-11-14 04:07:26,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 8.636363636363637) internal successors, (95), 13 states have internal predecessors, (95), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-14 04:07:26,902 INFO L276 IsEmpty]: Start isEmpty. Operand 1268 states and 1515 transitions. [2024-11-14 04:07:26,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-14 04:07:26,903 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:07:26,903 INFO L215 NwaCegarLoop]: trace histogram [9, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:07:26,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2024-11-14 04:07:27,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:07:27,108 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 04:07:27,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:07:27,108 INFO L85 PathProgramCache]: Analyzing trace with hash 976184303, now seen corresponding path program 6 times [2024-11-14 04:07:27,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:07:27,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522044002] [2024-11-14 04:07:27,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:07:27,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:07:27,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:07:27,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1308685168] [2024-11-14 04:07:27,141 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 04:07:27,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:07:27,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:07:27,143 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:07:27,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e466af36-ed86-4f10-b474-914d9e1927a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-14 04:07:27,393 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 04:07:27,393 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:07:27,395 INFO L255 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-14 04:07:27,398 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:07:31,125 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 8 proven. 93 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-14 04:07:31,125 INFO L311 TraceCheckSpWp]: Computing backward predicates...