./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound100.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_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/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_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound100.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/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_2ef94600-278a-42cc-a5cd-9054b1988d66/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 2b1a58ad3e10b615d95cc8c02ce2afb54c727e6977a5f6eabd49347a082a7a12 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:30:59,494 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:30:59,574 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-13 23:30:59,584 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:30:59,585 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 23:30:59,635 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:30:59,636 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 23:30:59,637 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 23:30:59,637 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:30:59,638 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 23:30:59,639 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-13 23:30:59,640 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-13 23:30:59,641 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-13 23:30:59,641 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-13 23:30:59,641 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-13 23:30:59,641 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-13 23:30:59,641 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-13 23:30:59,641 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-13 23:30:59,641 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-13 23:30:59,642 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-13 23:30:59,642 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-13 23:30:59,642 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-13 23:30:59,642 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:30:59,644 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 23:30:59,644 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 23:30:59,644 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 23:30:59,645 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 23:30:59,645 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:30:59,645 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 23:30:59,645 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:30:59,645 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 23:30:59,645 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:30:59,646 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 23:30:59,646 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 23:30:59,646 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 23:30:59,647 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 23:30:59,648 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:30:59,648 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:30:59,648 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 23:30:59,648 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 23:30:59,648 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:30:59,649 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:30:59,649 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:30:59,649 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 23:30:59,649 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-13 23:30:59,649 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 23:30:59,649 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 23:30:59,649 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-13 23:30:59,650 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 23:30:59,650 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_2ef94600-278a-42cc-a5cd-9054b1988d66/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 -> 2b1a58ad3e10b615d95cc8c02ce2afb54c727e6977a5f6eabd49347a082a7a12 [2024-11-13 23:31:00,064 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:31:00,081 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:31:00,085 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:31:00,087 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:31:00,087 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:31:00,089 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound100.c Unable to find full path for "g++" [2024-11-13 23:31:02,592 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:31:02,955 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:31:02,957 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound100.c [2024-11-13 23:31:02,968 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/data/955821668/37ae1d6e009849c882f3d67c9e3ec535/FLAG5f266118c [2024-11-13 23:31:02,995 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/data/955821668/37ae1d6e009849c882f3d67c9e3ec535 [2024-11-13 23:31:02,998 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:31:03,003 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:31:03,005 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:31:03,005 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:31:03,011 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:31:03,012 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:31:02" (1/1) ... [2024-11-13 23:31:03,014 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a6e1601 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:31:03, skipping insertion in model container [2024-11-13 23:31:03,016 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:31:02" (1/1) ... [2024-11-13 23:31:03,035 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:31:03,293 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:31:03,312 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:31:03,355 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:31:03,381 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:31:03,382 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:31:03 WrapperNode [2024-11-13 23:31:03,383 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:31:03,385 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:31:03,385 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:31:03,386 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:31:03,396 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:31:03" (1/1) ... [2024-11-13 23:31:03,405 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:31:03" (1/1) ... [2024-11-13 23:31:03,445 INFO L138 Inliner]: procedures = 14, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 101 [2024-11-13 23:31:03,445 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:31:03,446 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:31:03,447 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:31:03,447 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:31:03,461 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:31:03" (1/1) ... [2024-11-13 23:31:03,461 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:31:03" (1/1) ... [2024-11-13 23:31:03,464 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:31:03" (1/1) ... [2024-11-13 23:31:03,465 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:31:03" (1/1) ... [2024-11-13 23:31:03,474 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:31:03" (1/1) ... [2024-11-13 23:31:03,486 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:31:03" (1/1) ... [2024-11-13 23:31:03,488 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:31:03" (1/1) ... [2024-11-13 23:31:03,492 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:31:03" (1/1) ... [2024-11-13 23:31:03,498 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:31:03,500 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:31:03,500 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:31:03,500 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:31:03,502 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:31:03" (1/1) ... [2024-11-13 23:31:03,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:31:03,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:31:03,555 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-13 23:31:03,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-13 23:31:03,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 23:31:03,602 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 23:31:03,602 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 23:31:03,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 23:31:03,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:31:03,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:31:03,602 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-13 23:31:03,603 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-13 23:31:03,700 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:31:03,704 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:31:04,377 INFO L? ?]: Removed 91 outVars from TransFormulas that were not future-live. [2024-11-13 23:31:04,378 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 23:31:04,424 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 23:31:04,424 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 23:31:04,425 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:31:04 BoogieIcfgContainer [2024-11-13 23:31:04,425 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 23:31:04,429 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 23:31:04,429 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 23:31:04,436 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 23:31:04,436 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 11:31:02" (1/3) ... [2024-11-13 23:31:04,437 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2498945b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:31:04, skipping insertion in model container [2024-11-13 23:31:04,437 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:31:03" (2/3) ... [2024-11-13 23:31:04,437 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2498945b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:31:04, skipping insertion in model container [2024-11-13 23:31:04,437 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:31:04" (3/3) ... [2024-11-13 23:31:04,439 INFO L112 eAbstractionObserver]: Analyzing ICFG prod4br-ll_valuebound100.c [2024-11-13 23:31:04,459 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 23:31:04,461 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG prod4br-ll_valuebound100.c that has 3 procedures, 104 locations, 1 initial locations, 1 loop locations, and 42 error locations. [2024-11-13 23:31:04,539 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 23:31:04,559 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;@40b432e6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 23:31:04,560 INFO L334 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2024-11-13 23:31:04,565 INFO L276 IsEmpty]: Start isEmpty. Operand has 104 states, 53 states have (on average 1.8867924528301887) internal successors, (100), 95 states have internal predecessors, (100), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-13 23:31:04,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-13 23:31:04,574 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:31:04,575 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:31:04,575 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 23:31:04,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:31:04,581 INFO L85 PathProgramCache]: Analyzing trace with hash 764557574, now seen corresponding path program 1 times [2024-11-13 23:31:04,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:31:04,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232507419] [2024-11-13 23:31:04,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:31:04,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:31:04,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:31:04,773 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 23:31:04,774 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:31:04,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232507419] [2024-11-13 23:31:04,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232507419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:31:04,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:31:04,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 23:31:04,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591239007] [2024-11-13 23:31:04,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:31:04,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 23:31:04,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:31:04,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 23:31:04,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 23:31:04,821 INFO L87 Difference]: Start difference. First operand has 104 states, 53 states have (on average 1.8867924528301887) internal successors, (100), 95 states have internal predecessors, (100), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-13 23:31:04,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:31:04,875 INFO L93 Difference]: Finished difference Result 118 states and 126 transitions. [2024-11-13 23:31:04,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 23:31:04,878 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 14 [2024-11-13 23:31:04,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:31:04,888 INFO L225 Difference]: With dead ends: 118 [2024-11-13 23:31:04,889 INFO L226 Difference]: Without dead ends: 101 [2024-11-13 23:31:04,893 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 23:31:04,902 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 23:31:04,902 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 107 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 23:31:04,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-13 23:31:04,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2024-11-13 23:31:04,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 52 states have (on average 1.8653846153846154) internal successors, (97), 93 states have internal predecessors, (97), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-13 23:31:04,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 107 transitions. [2024-11-13 23:31:04,977 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 107 transitions. Word has length 14 [2024-11-13 23:31:04,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:31:04,979 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 107 transitions. [2024-11-13 23:31:04,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-13 23:31:04,979 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 107 transitions. [2024-11-13 23:31:04,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-13 23:31:04,984 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:31:04,984 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:31:04,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 23:31:04,985 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 23:31:04,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:31:04,986 INFO L85 PathProgramCache]: Analyzing trace with hash 764552637, now seen corresponding path program 1 times [2024-11-13 23:31:04,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:31:04,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128824656] [2024-11-13 23:31:04,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:31:04,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:31:05,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 23:31:05,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1980735143] [2024-11-13 23:31:05,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:31:05,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:31:05,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:31:05,097 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:31:05,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 23:31:05,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:31:05,189 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-13 23:31:05,197 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:31:05,492 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 23:31:05,493 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:31:05,494 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:31:05,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128824656] [2024-11-13 23:31:05,496 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 23:31:05,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1980735143] [2024-11-13 23:31:05,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1980735143] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:31:05,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:31:05,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 23:31:05,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445860099] [2024-11-13 23:31:05,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:31:05,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 23:31:05,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:31:05,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 23:31:05,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-13 23:31:05,499 INFO L87 Difference]: Start difference. First operand 101 states and 107 transitions. Second operand has 7 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 23:31:06,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:31:06,047 INFO L93 Difference]: Finished difference Result 137 states and 163 transitions. [2024-11-13 23:31:06,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 23:31:06,048 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 14 [2024-11-13 23:31:06,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:31:06,049 INFO L225 Difference]: With dead ends: 137 [2024-11-13 23:31:06,049 INFO L226 Difference]: Without dead ends: 126 [2024-11-13 23:31:06,052 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-13 23:31:06,053 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 414 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 416 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 23:31:06,053 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [416 Valid, 127 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 23:31:06,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2024-11-13 23:31:06,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 121. [2024-11-13 23:31:06,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 74 states have (on average 1.6891891891891893) internal successors, (125), 111 states have internal predecessors, (125), 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) [2024-11-13 23:31:06,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 139 transitions. [2024-11-13 23:31:06,081 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 139 transitions. Word has length 14 [2024-11-13 23:31:06,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:31:06,081 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 139 transitions. [2024-11-13 23:31:06,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 23:31:06,082 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 139 transitions. [2024-11-13 23:31:06,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-13 23:31:06,083 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:31:06,083 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:31:06,109 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 23:31:06,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:31:06,284 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 23:31:06,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:31:06,285 INFO L85 PathProgramCache]: Analyzing trace with hash -2068671980, now seen corresponding path program 1 times [2024-11-13 23:31:06,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:31:06,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166442346] [2024-11-13 23:31:06,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:31:06,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:31:06,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 23:31:06,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1899326599] [2024-11-13 23:31:06,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:31:06,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:31:06,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:31:06,313 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:31:06,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 23:31:06,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:31:06,378 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-13 23:31:06,380 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:31:06,549 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 23:31:06,549 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:31:06,550 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:31:06,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166442346] [2024-11-13 23:31:06,550 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 23:31:06,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1899326599] [2024-11-13 23:31:06,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1899326599] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:31:06,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:31:06,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 23:31:06,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070239019] [2024-11-13 23:31:06,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:31:06,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 23:31:06,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:31:06,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 23:31:06,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-13 23:31:06,553 INFO L87 Difference]: Start difference. First operand 121 states and 139 transitions. Second operand has 7 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 23:31:07,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:31:07,186 INFO L93 Difference]: Finished difference Result 167 states and 203 transitions. [2024-11-13 23:31:07,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 23:31:07,188 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 15 [2024-11-13 23:31:07,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:31:07,190 INFO L225 Difference]: With dead ends: 167 [2024-11-13 23:31:07,190 INFO L226 Difference]: Without dead ends: 151 [2024-11-13 23:31:07,191 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-13 23:31:07,195 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 294 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 23:31:07,195 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 126 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 23:31:07,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-11-13 23:31:07,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 148. [2024-11-13 23:31:07,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 100 states have (on average 1.64) internal successors, (164), 137 states have internal predecessors, (164), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-13 23:31:07,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 180 transitions. [2024-11-13 23:31:07,258 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 180 transitions. Word has length 15 [2024-11-13 23:31:07,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:31:07,258 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 180 transitions. [2024-11-13 23:31:07,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 23:31:07,259 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 180 transitions. [2024-11-13 23:31:07,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-13 23:31:07,260 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:31:07,260 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:31:07,285 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 23:31:07,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-13 23:31:07,461 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 23:31:07,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:31:07,461 INFO L85 PathProgramCache]: Analyzing trace with hash 295678111, now seen corresponding path program 1 times [2024-11-13 23:31:07,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:31:07,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99561564] [2024-11-13 23:31:07,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:31:07,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:31:07,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 23:31:07,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1009318250] [2024-11-13 23:31:07,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:31:07,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:31:07,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:31:07,505 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:31:07,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 23:31:07,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:31:07,559 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-13 23:31:07,562 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:31:07,732 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 23:31:07,732 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:31:07,733 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:31:07,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99561564] [2024-11-13 23:31:07,733 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 23:31:07,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1009318250] [2024-11-13 23:31:07,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1009318250] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:31:07,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:31:07,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 23:31:07,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300509525] [2024-11-13 23:31:07,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:31:07,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 23:31:07,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:31:07,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 23:31:07,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-13 23:31:07,735 INFO L87 Difference]: Start difference. First operand 148 states and 180 transitions. Second operand has 7 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 23:31:08,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:31:08,121 INFO L93 Difference]: Finished difference Result 156 states and 187 transitions. [2024-11-13 23:31:08,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 23:31:08,123 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 16 [2024-11-13 23:31:08,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:31:08,125 INFO L225 Difference]: With dead ends: 156 [2024-11-13 23:31:08,125 INFO L226 Difference]: Without dead ends: 155 [2024-11-13 23:31:08,125 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-13 23:31:08,126 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 254 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 23:31:08,130 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 148 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 23:31:08,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2024-11-13 23:31:08,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 148. [2024-11-13 23:31:08,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 100 states have (on average 1.63) internal successors, (163), 137 states have internal predecessors, (163), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-13 23:31:08,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 179 transitions. [2024-11-13 23:31:08,154 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 179 transitions. Word has length 16 [2024-11-13 23:31:08,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:31:08,159 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 179 transitions. [2024-11-13 23:31:08,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 23:31:08,160 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 179 transitions. [2024-11-13 23:31:08,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-13 23:31:08,160 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:31:08,161 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:31:08,186 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 23:31:08,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:31:08,361 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 23:31:08,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:31:08,362 INFO L85 PathProgramCache]: Analyzing trace with hash 576086902, now seen corresponding path program 1 times [2024-11-13 23:31:08,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:31:08,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826620816] [2024-11-13 23:31:08,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:31:08,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:31:08,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 23:31:08,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [525517755] [2024-11-13 23:31:08,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:31:08,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:31:08,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:31:08,398 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:31:08,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 23:31:08,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:31:08,464 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-13 23:31:08,466 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:31:08,714 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 23:31:08,714 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:31:08,714 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:31:08,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826620816] [2024-11-13 23:31:08,714 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 23:31:08,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [525517755] [2024-11-13 23:31:08,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [525517755] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:31:08,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:31:08,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 23:31:08,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5229900] [2024-11-13 23:31:08,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:31:08,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 23:31:08,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:31:08,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 23:31:08,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-13 23:31:08,716 INFO L87 Difference]: Start difference. First operand 148 states and 179 transitions. Second operand has 7 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 23:31:09,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:31:09,254 INFO L93 Difference]: Finished difference Result 156 states and 186 transitions. [2024-11-13 23:31:09,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 23:31:09,255 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 17 [2024-11-13 23:31:09,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:31:09,256 INFO L225 Difference]: With dead ends: 156 [2024-11-13 23:31:09,257 INFO L226 Difference]: Without dead ends: 155 [2024-11-13 23:31:09,257 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-13 23:31:09,258 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 134 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 23:31:09,259 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 150 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 23:31:09,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2024-11-13 23:31:09,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 148. [2024-11-13 23:31:09,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 100 states have (on average 1.62) internal successors, (162), 137 states have internal predecessors, (162), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-13 23:31:09,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 178 transitions. [2024-11-13 23:31:09,273 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 178 transitions. Word has length 17 [2024-11-13 23:31:09,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:31:09,273 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 178 transitions. [2024-11-13 23:31:09,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 23:31:09,274 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 178 transitions. [2024-11-13 23:31:09,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-13 23:31:09,274 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:31:09,275 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:31:09,300 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-13 23:31:09,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:31:09,479 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 23:31:09,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:31:09,480 INFO L85 PathProgramCache]: Analyzing trace with hash 678824833, now seen corresponding path program 1 times [2024-11-13 23:31:09,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:31:09,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691957078] [2024-11-13 23:31:09,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:31:09,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:31:09,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:31:09,716 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 23:31:09,717 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:31:09,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691957078] [2024-11-13 23:31:09,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691957078] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:31:09,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:31:09,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:31:09,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553198913] [2024-11-13 23:31:09,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:31:09,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 23:31:09,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:31:09,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 23:31:09,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:31:09,720 INFO L87 Difference]: Start difference. First operand 148 states and 178 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-13 23:31:12,636 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 [] [2024-11-13 23:31:13,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:31:13,749 INFO L93 Difference]: Finished difference Result 241 states and 287 transitions. [2024-11-13 23:31:13,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 23:31:13,750 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 18 [2024-11-13 23:31:13,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:31:13,752 INFO L225 Difference]: With dead ends: 241 [2024-11-13 23:31:13,752 INFO L226 Difference]: Without dead ends: 240 [2024-11-13 23:31:13,752 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:31:13,753 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 93 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-13 23:31:13,754 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 149 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 125 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2024-11-13 23:31:13,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2024-11-13 23:31:13,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 169. [2024-11-13 23:31:13,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 120 states have (on average 1.6166666666666667) internal successors, (194), 157 states have internal predecessors, (194), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-13 23:31:13,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 212 transitions. [2024-11-13 23:31:13,776 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 212 transitions. Word has length 18 [2024-11-13 23:31:13,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:31:13,776 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 212 transitions. [2024-11-13 23:31:13,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-13 23:31:13,776 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 212 transitions. [2024-11-13 23:31:13,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-13 23:31:13,777 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:31:13,777 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:31:13,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 23:31:13,778 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 23:31:13,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:31:13,778 INFO L85 PathProgramCache]: Analyzing trace with hash -431266600, now seen corresponding path program 1 times [2024-11-13 23:31:13,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:31:13,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117513939] [2024-11-13 23:31:13,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:31:13,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:31:13,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:31:14,209 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 23:31:14,209 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:31:14,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117513939] [2024-11-13 23:31:14,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117513939] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:31:14,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:31:14,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:31:14,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367342067] [2024-11-13 23:31:14,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:31:14,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 23:31:14,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:31:14,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 23:31:14,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:31:14,211 INFO L87 Difference]: Start difference. First operand 169 states and 212 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-13 23:31:16,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:31:16,457 INFO L93 Difference]: Finished difference Result 241 states and 285 transitions. [2024-11-13 23:31:16,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 23:31:16,458 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 19 [2024-11-13 23:31:16,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:31:16,460 INFO L225 Difference]: With dead ends: 241 [2024-11-13 23:31:16,460 INFO L226 Difference]: Without dead ends: 240 [2024-11-13 23:31:16,460 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:31:16,461 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 91 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-13 23:31:16,462 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 152 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-13 23:31:16,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2024-11-13 23:31:16,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 169. [2024-11-13 23:31:16,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 120 states have (on average 1.6) internal successors, (192), 157 states have internal predecessors, (192), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-13 23:31:16,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 210 transitions. [2024-11-13 23:31:16,478 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 210 transitions. Word has length 19 [2024-11-13 23:31:16,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:31:16,479 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 210 transitions. [2024-11-13 23:31:16,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-13 23:31:16,479 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 210 transitions. [2024-11-13 23:31:16,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-13 23:31:16,480 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:31:16,480 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:31:16,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 23:31:16,481 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 23:31:16,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:31:16,481 INFO L85 PathProgramCache]: Analyzing trace with hash -73416598, now seen corresponding path program 1 times [2024-11-13 23:31:16,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:31:16,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739528679] [2024-11-13 23:31:16,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:31:16,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:31:16,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 23:31:16,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [857476722] [2024-11-13 23:31:16,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:31:16,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:31:16,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:31:16,564 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:31:16,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 23:31:16,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:31:16,640 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 23:31:16,641 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:31:16,808 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 23:31:16,808 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:31:16,808 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:31:16,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739528679] [2024-11-13 23:31:16,808 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 23:31:16,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [857476722] [2024-11-13 23:31:16,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [857476722] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:31:16,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:31:16,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:31:16,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940592416] [2024-11-13 23:31:16,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:31:16,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 23:31:16,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:31:16,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 23:31:16,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:31:16,811 INFO L87 Difference]: Start difference. First operand 169 states and 210 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 23:31:17,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:31:17,114 INFO L93 Difference]: Finished difference Result 179 states and 218 transitions. [2024-11-13 23:31:17,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 23:31:17,115 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 30 [2024-11-13 23:31:17,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:31:17,117 INFO L225 Difference]: With dead ends: 179 [2024-11-13 23:31:17,117 INFO L226 Difference]: Without dead ends: 176 [2024-11-13 23:31:17,117 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 23:31:17,118 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 156 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 23:31:17,119 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 95 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 23:31:17,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2024-11-13 23:31:17,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 173. [2024-11-13 23:31:17,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 124 states have (on average 1.5725806451612903) internal successors, (195), 161 states have internal predecessors, (195), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-13 23:31:17,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 213 transitions. [2024-11-13 23:31:17,134 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 213 transitions. Word has length 30 [2024-11-13 23:31:17,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:31:17,135 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 213 transitions. [2024-11-13 23:31:17,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 23:31:17,135 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 213 transitions. [2024-11-13 23:31:17,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-13 23:31:17,136 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:31:17,136 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:31:17,162 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-13 23:31:17,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-13 23:31:17,337 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 23:31:17,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:31:17,337 INFO L85 PathProgramCache]: Analyzing trace with hash 2032443907, now seen corresponding path program 1 times [2024-11-13 23:31:17,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:31:17,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737727560] [2024-11-13 23:31:17,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:31:17,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:31:17,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 23:31:17,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1357034980] [2024-11-13 23:31:17,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:31:17,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:31:17,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:31:17,405 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:31:17,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 23:31:17,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:31:17,487 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 23:31:17,489 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:31:17,654 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 23:31:17,655 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:31:17,655 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:31:17,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737727560] [2024-11-13 23:31:17,655 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 23:31:17,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1357034980] [2024-11-13 23:31:17,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1357034980] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:31:17,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:31:17,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:31:17,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055092105] [2024-11-13 23:31:17,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:31:17,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 23:31:17,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:31:17,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 23:31:17,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:31:17,656 INFO L87 Difference]: Start difference. First operand 173 states and 213 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 23:31:18,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:31:18,241 INFO L93 Difference]: Finished difference Result 222 states and 281 transitions. [2024-11-13 23:31:18,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 23:31:18,242 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), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 31 [2024-11-13 23:31:18,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:31:18,244 INFO L225 Difference]: With dead ends: 222 [2024-11-13 23:31:18,246 INFO L226 Difference]: Without dead ends: 216 [2024-11-13 23:31:18,247 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 23:31:18,247 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 148 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 23:31:18,248 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 100 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 23:31:18,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-11-13 23:31:18,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 201. [2024-11-13 23:31:18,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 151 states have (on average 1.5894039735099337) internal successors, (240), 188 states have internal predecessors, (240), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-13 23:31:18,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 260 transitions. [2024-11-13 23:31:18,271 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 260 transitions. Word has length 31 [2024-11-13 23:31:18,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:31:18,273 INFO L471 AbstractCegarLoop]: Abstraction has 201 states and 260 transitions. [2024-11-13 23:31:18,273 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), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 23:31:18,273 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 260 transitions. [2024-11-13 23:31:18,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-13 23:31:18,274 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:31:18,274 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:31:18,301 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-13 23:31:18,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-13 23:31:18,476 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 23:31:18,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:31:18,477 INFO L85 PathProgramCache]: Analyzing trace with hash 2019052853, now seen corresponding path program 1 times [2024-11-13 23:31:18,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:31:18,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972612481] [2024-11-13 23:31:18,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:31:18,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:31:18,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 23:31:18,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [908542039] [2024-11-13 23:31:18,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:31:18,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:31:18,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:31:18,543 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:31:18,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-13 23:31:18,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:31:18,609 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 23:31:18,611 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:31:18,760 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 23:31:18,760 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:31:18,760 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:31:18,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972612481] [2024-11-13 23:31:18,762 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 23:31:18,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [908542039] [2024-11-13 23:31:18,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [908542039] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:31:18,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:31:18,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:31:18,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123609018] [2024-11-13 23:31:18,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:31:18,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 23:31:18,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:31:18,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 23:31:18,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:31:18,767 INFO L87 Difference]: Start difference. First operand 201 states and 260 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 23:31:19,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:31:19,343 INFO L93 Difference]: Finished difference Result 262 states and 352 transitions. [2024-11-13 23:31:19,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 23:31:19,344 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 31 [2024-11-13 23:31:19,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:31:19,346 INFO L225 Difference]: With dead ends: 262 [2024-11-13 23:31:19,347 INFO L226 Difference]: Without dead ends: 256 [2024-11-13 23:31:19,347 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 23:31:19,349 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 201 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 23:31:19,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 68 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 23:31:19,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2024-11-13 23:31:19,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 236. [2024-11-13 23:31:19,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 185 states have (on average 1.6378378378378378) internal successors, (303), 222 states have internal predecessors, (303), 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) [2024-11-13 23:31:19,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 325 transitions. [2024-11-13 23:31:19,374 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 325 transitions. Word has length 31 [2024-11-13 23:31:19,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:31:19,376 INFO L471 AbstractCegarLoop]: Abstraction has 236 states and 325 transitions. [2024-11-13 23:31:19,376 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 23:31:19,376 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 325 transitions. [2024-11-13 23:31:19,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-13 23:31:19,377 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:31:19,377 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:31:19,406 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-13 23:31:19,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-13 23:31:19,578 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 23:31:19,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:31:19,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1418748211, now seen corresponding path program 1 times [2024-11-13 23:31:19,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:31:19,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528678763] [2024-11-13 23:31:19,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:31:19,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:31:19,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 23:31:19,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [604429510] [2024-11-13 23:31:19,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:31:19,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:31:19,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:31:19,647 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:31:19,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-13 23:31:19,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:31:19,719 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 23:31:19,721 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:31:19,878 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 23:31:19,879 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:31:19,880 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:31:19,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528678763] [2024-11-13 23:31:19,880 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 23:31:19,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [604429510] [2024-11-13 23:31:19,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [604429510] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:31:19,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:31:19,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:31:19,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761157449] [2024-11-13 23:31:19,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:31:19,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 23:31:19,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:31:19,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 23:31:19,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:31:19,882 INFO L87 Difference]: Start difference. First operand 236 states and 325 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 23:31:20,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:31:20,326 INFO L93 Difference]: Finished difference Result 248 states and 332 transitions. [2024-11-13 23:31:20,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 23:31:20,327 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), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 32 [2024-11-13 23:31:20,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:31:20,329 INFO L225 Difference]: With dead ends: 248 [2024-11-13 23:31:20,329 INFO L226 Difference]: Without dead ends: 244 [2024-11-13 23:31:20,330 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 23:31:20,331 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 185 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 23:31:20,331 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 76 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 23:31:20,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2024-11-13 23:31:20,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 236. [2024-11-13 23:31:20,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 185 states have (on average 1.6108108108108108) internal successors, (298), 222 states have internal predecessors, (298), 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) [2024-11-13 23:31:20,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 320 transitions. [2024-11-13 23:31:20,348 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 320 transitions. Word has length 32 [2024-11-13 23:31:20,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:31:20,349 INFO L471 AbstractCegarLoop]: Abstraction has 236 states and 320 transitions. [2024-11-13 23:31:20,349 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), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 23:31:20,349 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 320 transitions. [2024-11-13 23:31:20,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-13 23:31:20,350 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:31:20,350 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:31:20,370 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-13 23:31:20,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-13 23:31:20,551 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 23:31:20,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:31:20,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1833870900, now seen corresponding path program 1 times [2024-11-13 23:31:20,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:31:20,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944280353] [2024-11-13 23:31:20,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:31:20,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:31:20,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:31:20,760 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 23:31:20,760 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:31:20,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944280353] [2024-11-13 23:31:20,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944280353] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:31:20,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:31:20,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:31:20,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025674738] [2024-11-13 23:31:20,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:31:20,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 23:31:20,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:31:20,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 23:31:20,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:31:20,762 INFO L87 Difference]: Start difference. First operand 236 states and 320 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 23:31:21,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:31:21,519 INFO L93 Difference]: Finished difference Result 319 states and 412 transitions. [2024-11-13 23:31:21,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 23:31:21,520 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), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 32 [2024-11-13 23:31:21,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:31:21,521 INFO L225 Difference]: With dead ends: 319 [2024-11-13 23:31:21,522 INFO L226 Difference]: Without dead ends: 318 [2024-11-13 23:31:21,522 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:31:21,523 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 61 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 23:31:21,523 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 213 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 23:31:21,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2024-11-13 23:31:21,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 246. [2024-11-13 23:31:21,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 195 states have (on average 1.6051282051282052) internal successors, (313), 232 states have internal predecessors, (313), 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) [2024-11-13 23:31:21,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 335 transitions. [2024-11-13 23:31:21,541 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 335 transitions. Word has length 32 [2024-11-13 23:31:21,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:31:21,542 INFO L471 AbstractCegarLoop]: Abstraction has 246 states and 335 transitions. [2024-11-13 23:31:21,542 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), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 23:31:21,542 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 335 transitions. [2024-11-13 23:31:21,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-13 23:31:21,543 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:31:21,543 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:31:21,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 23:31:21,544 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 23:31:21,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:31:21,544 INFO L85 PathProgramCache]: Analyzing trace with hash -617353083, now seen corresponding path program 1 times [2024-11-13 23:31:21,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:31:21,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033982749] [2024-11-13 23:31:21,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:31:21,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:31:21,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:31:21,750 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 23:31:21,750 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:31:21,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033982749] [2024-11-13 23:31:21,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033982749] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:31:21,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:31:21,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 23:31:21,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206976603] [2024-11-13 23:31:21,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:31:21,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 23:31:21,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:31:21,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 23:31:21,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-13 23:31:21,753 INFO L87 Difference]: Start difference. First operand 246 states and 335 transitions. Second operand has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 7 states have internal predecessors, (23), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 23:31:22,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:31:22,788 INFO L93 Difference]: Finished difference Result 348 states and 496 transitions. [2024-11-13 23:31:22,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 23:31:22,789 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 7 states have internal predecessors, (23), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 33 [2024-11-13 23:31:22,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:31:22,791 INFO L225 Difference]: With dead ends: 348 [2024-11-13 23:31:22,791 INFO L226 Difference]: Without dead ends: 346 [2024-11-13 23:31:22,793 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-11-13 23:31:22,794 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 469 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 23:31:22,796 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [469 Valid, 68 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 23:31:22,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2024-11-13 23:31:22,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 252. [2024-11-13 23:31:22,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 201 states have (on average 1.592039800995025) internal successors, (320), 238 states have internal predecessors, (320), 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) [2024-11-13 23:31:22,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 342 transitions. [2024-11-13 23:31:22,825 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 342 transitions. Word has length 33 [2024-11-13 23:31:22,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:31:22,826 INFO L471 AbstractCegarLoop]: Abstraction has 252 states and 342 transitions. [2024-11-13 23:31:22,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 7 states have internal predecessors, (23), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 23:31:22,827 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 342 transitions. [2024-11-13 23:31:22,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-13 23:31:22,827 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:31:22,828 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:31:22,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-13 23:31:22,829 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 23:31:22,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:31:22,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1031521467, now seen corresponding path program 1 times [2024-11-13 23:31:22,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:31:22,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272656155] [2024-11-13 23:31:22,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:31:22,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:31:22,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:31:22,950 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 23:31:22,951 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:31:22,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272656155] [2024-11-13 23:31:22,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272656155] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:31:22,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:31:22,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:31:22,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051754108] [2024-11-13 23:31:22,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:31:22,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 23:31:22,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:31:22,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 23:31:22,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:31:22,952 INFO L87 Difference]: Start difference. First operand 252 states and 342 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 23:31:23,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:31:23,727 INFO L93 Difference]: Finished difference Result 319 states and 408 transitions. [2024-11-13 23:31:23,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 23:31:23,727 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 33 [2024-11-13 23:31:23,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:31:23,730 INFO L225 Difference]: With dead ends: 319 [2024-11-13 23:31:23,730 INFO L226 Difference]: Without dead ends: 318 [2024-11-13 23:31:23,730 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:31:23,731 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 60 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 23:31:23,731 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 216 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 23:31:23,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2024-11-13 23:31:23,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 262. [2024-11-13 23:31:23,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 211 states have (on average 1.5876777251184835) internal successors, (335), 248 states have internal predecessors, (335), 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) [2024-11-13 23:31:23,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 357 transitions. [2024-11-13 23:31:23,752 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 357 transitions. Word has length 33 [2024-11-13 23:31:23,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:31:23,752 INFO L471 AbstractCegarLoop]: Abstraction has 262 states and 357 transitions. [2024-11-13 23:31:23,753 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 23:31:23,753 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 357 transitions. [2024-11-13 23:31:23,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-13 23:31:23,754 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:31:23,754 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:31:23,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 23:31:23,754 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 23:31:23,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:31:23,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1015422953, now seen corresponding path program 1 times [2024-11-13 23:31:23,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:31:23,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416604756] [2024-11-13 23:31:23,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:31:23,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:31:23,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:31:24,023 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 23:31:24,024 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:31:24,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416604756] [2024-11-13 23:31:24,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416604756] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:31:24,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:31:24,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:31:24,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529147743] [2024-11-13 23:31:24,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:31:24,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 23:31:24,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:31:24,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 23:31:24,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:31:24,026 INFO L87 Difference]: Start difference. First operand 262 states and 357 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 23:31:25,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:31:25,286 INFO L93 Difference]: Finished difference Result 319 states and 406 transitions. [2024-11-13 23:31:25,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 23:31:25,287 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 33 [2024-11-13 23:31:25,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:31:25,289 INFO L225 Difference]: With dead ends: 319 [2024-11-13 23:31:25,289 INFO L226 Difference]: Without dead ends: 318 [2024-11-13 23:31:25,289 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:31:25,290 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 60 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-13 23:31:25,290 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 224 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-13 23:31:25,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2024-11-13 23:31:25,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 264. [2024-11-13 23:31:25,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 213 states have (on average 1.5821596244131455) internal successors, (337), 250 states have internal predecessors, (337), 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) [2024-11-13 23:31:25,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 359 transitions. [2024-11-13 23:31:25,315 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 359 transitions. Word has length 33 [2024-11-13 23:31:25,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:31:25,316 INFO L471 AbstractCegarLoop]: Abstraction has 264 states and 359 transitions. [2024-11-13 23:31:25,317 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 23:31:25,317 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 359 transitions. [2024-11-13 23:31:25,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-13 23:31:25,322 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:31:25,322 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:31:25,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 23:31:25,323 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 23:31:25,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:31:25,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1958076259, now seen corresponding path program 1 times [2024-11-13 23:31:25,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:31:25,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247116524] [2024-11-13 23:31:25,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:31:25,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:31:25,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:31:25,519 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 23:31:25,519 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:31:25,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247116524] [2024-11-13 23:31:25,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247116524] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:31:25,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:31:25,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 23:31:25,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407709007] [2024-11-13 23:31:25,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:31:25,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 23:31:25,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:31:25,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 23:31:25,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-13 23:31:25,521 INFO L87 Difference]: Start difference. First operand 264 states and 359 transitions. Second operand has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 23:31:26,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:31:26,919 INFO L93 Difference]: Finished difference Result 271 states and 366 transitions. [2024-11-13 23:31:26,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 23:31:26,920 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 34 [2024-11-13 23:31:26,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:31:26,922 INFO L225 Difference]: With dead ends: 271 [2024-11-13 23:31:26,922 INFO L226 Difference]: Without dead ends: 269 [2024-11-13 23:31:26,923 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-11-13 23:31:26,923 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 355 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-13 23:31:26,924 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 86 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-13 23:31:26,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2024-11-13 23:31:26,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 264. [2024-11-13 23:31:26,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 213 states have (on average 1.568075117370892) internal successors, (334), 250 states have internal predecessors, (334), 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) [2024-11-13 23:31:26,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 356 transitions. [2024-11-13 23:31:26,945 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 356 transitions. Word has length 34 [2024-11-13 23:31:26,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:31:26,945 INFO L471 AbstractCegarLoop]: Abstraction has 264 states and 356 transitions. [2024-11-13 23:31:26,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 23:31:26,946 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 356 transitions. [2024-11-13 23:31:26,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-13 23:31:26,947 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:31:26,947 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:31:26,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-13 23:31:26,947 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 23:31:26,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:31:26,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1912394289, now seen corresponding path program 1 times [2024-11-13 23:31:26,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:31:26,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452966142] [2024-11-13 23:31:26,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:31:26,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:31:26,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:31:27,151 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 23:31:27,151 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:31:27,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452966142] [2024-11-13 23:31:27,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452966142] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:31:27,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:31:27,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:31:27,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454785213] [2024-11-13 23:31:27,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:31:27,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 23:31:27,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:31:27,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 23:31:27,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:31:27,153 INFO L87 Difference]: Start difference. First operand 264 states and 356 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 23:31:28,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:31:28,467 INFO L93 Difference]: Finished difference Result 319 states and 400 transitions. [2024-11-13 23:31:28,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 23:31:28,467 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 34 [2024-11-13 23:31:28,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:31:28,469 INFO L225 Difference]: With dead ends: 319 [2024-11-13 23:31:28,469 INFO L226 Difference]: Without dead ends: 318 [2024-11-13 23:31:28,470 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:31:28,470 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 59 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-13 23:31:28,471 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 205 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-13 23:31:28,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2024-11-13 23:31:28,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 266. [2024-11-13 23:31:28,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 215 states have (on average 1.5627906976744186) internal successors, (336), 252 states have internal predecessors, (336), 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) [2024-11-13 23:31:28,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 358 transitions. [2024-11-13 23:31:28,491 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 358 transitions. Word has length 34 [2024-11-13 23:31:28,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:31:28,491 INFO L471 AbstractCegarLoop]: Abstraction has 266 states and 358 transitions. [2024-11-13 23:31:28,491 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 23:31:28,491 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 358 transitions. [2024-11-13 23:31:28,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-13 23:31:28,492 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:31:28,492 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:31:28,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-13 23:31:28,493 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 23:31:28,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:31:28,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1172427968, now seen corresponding path program 1 times [2024-11-13 23:31:28,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:31:28,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555415050] [2024-11-13 23:31:28,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:31:28,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:31:28,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 23:31:28,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [41428715] [2024-11-13 23:31:28,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:31:28,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:31:28,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:31:28,525 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:31:28,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-13 23:31:28,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:31:28,608 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 23:31:28,611 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:31:29,108 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 23:31:29,109 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:31:34,202 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:31:34,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555415050] [2024-11-13 23:31:34,202 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 23:31:34,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [41428715] [2024-11-13 23:31:34,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [41428715] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:31:34,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [488039550] [2024-11-13 23:31:34,240 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-13 23:31:34,240 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:31:34,246 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:31:34,253 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:31:34,254 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:31:38,923 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 81 for LOIs [2024-11-13 23:31:39,071 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-13 23:31:39,073 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:32:02,069 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8969#(exists ((|v_ULTIMATE.start_main_~a~0#1_84| Int) (|v_ULTIMATE.start_main_~b~0#1_84| Int)) (and (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= (div (* (- 1) |ULTIMATE.start_main_~p~0#1|) 4) 2305843009213693952) (exists ((|v_ULTIMATE.start_main_~a~0#1_83| Int)) (and (= (mod |v_ULTIMATE.start_main_~a~0#1_83| 2) 0) (= (div |v_ULTIMATE.start_main_~a~0#1_83| 2) |v_ULTIMATE.start_main_~a~0#1_84|) (<= (div |v_ULTIMATE.start_main_~a~0#1_83| 2) 9223372036854775807) (<= 0 (+ 9223372036854775808 (div |v_ULTIMATE.start_main_~a~0#1_83| 2))))) (<= 1 |ULTIMATE.start_main_~y~0#1|) (= (mod (* 3 |ULTIMATE.start_main_~p~0#1|) 4) 0) (<= |ULTIMATE.start_main_~x~0#1| 100) (= |ULTIMATE.start_main_~q~0#1| 0) (<= 0 (+ (div (* (- 1) |ULTIMATE.start_main_~p~0#1|) 4) 2305843009213693951)) (<= |ULTIMATE.start_main_~y~0#1| 100) (exists ((|v_ULTIMATE.start_main_~b~0#1_83| Int)) (and (<= (div |v_ULTIMATE.start_main_~b~0#1_83| 2) 9223372036854775807) (= |v_ULTIMATE.start_main_~b~0#1_84| (div |v_ULTIMATE.start_main_~b~0#1_83| 2)) (= (mod |v_ULTIMATE.start_main_~b~0#1_83| 2) 0) (<= 0 (+ 9223372036854775808 (div |v_ULTIMATE.start_main_~b~0#1_83| 2))))) (<= (+ 9223372036854775809 (* |v_ULTIMATE.start_main_~b~0#1_84| |v_ULTIMATE.start_main_~a~0#1_84|)) 0)))' at error location [2024-11-13 23:32:02,069 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:32:02,069 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 23:32:02,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-13 23:32:02,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429544532] [2024-11-13 23:32:02,070 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 23:32:02,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 23:32:02,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:32:02,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 23:32:02,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=1194, Unknown=5, NotChecked=0, Total=1406 [2024-11-13 23:32:02,072 INFO L87 Difference]: Start difference. First operand 266 states and 358 transitions. Second operand has 10 states, 8 states have (on average 3.125) internal successors, (25), 9 states have internal predecessors, (25), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 23:32:02,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:32:02,961 INFO L93 Difference]: Finished difference Result 335 states and 456 transitions. [2024-11-13 23:32:02,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 23:32:02,961 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 3.125) internal successors, (25), 9 states have internal predecessors, (25), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 34 [2024-11-13 23:32:02,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:32:02,964 INFO L225 Difference]: With dead ends: 335 [2024-11-13 23:32:02,964 INFO L226 Difference]: Without dead ends: 326 [2024-11-13 23:32:02,965 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 40 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 597 ImplicationChecksByTransitivity, 25.3s TimeCoverageRelationStatistics Valid=262, Invalid=1455, Unknown=5, NotChecked=0, Total=1722 [2024-11-13 23:32:02,966 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 316 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 23:32:02,966 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 181 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 23:32:02,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2024-11-13 23:32:02,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 303. [2024-11-13 23:32:02,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 250 states have (on average 1.512) internal successors, (378), 287 states have internal predecessors, (378), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-13 23:32:02,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 404 transitions. [2024-11-13 23:32:02,988 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 404 transitions. Word has length 34 [2024-11-13 23:32:02,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:32:02,988 INFO L471 AbstractCegarLoop]: Abstraction has 303 states and 404 transitions. [2024-11-13 23:32:02,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 3.125) internal successors, (25), 9 states have internal predecessors, (25), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 23:32:02,989 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 404 transitions. [2024-11-13 23:32:02,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-13 23:32:02,989 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:32:02,989 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:32:03,008 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-13 23:32:03,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-13 23:32:03,190 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 23:32:03,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:32:03,191 INFO L85 PathProgramCache]: Analyzing trace with hash -863880199, now seen corresponding path program 1 times [2024-11-13 23:32:03,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:32:03,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156197309] [2024-11-13 23:32:03,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:32:03,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:32:03,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 23:32:03,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1283455111] [2024-11-13 23:32:03,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:32:03,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:32:03,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:32:03,230 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:32:03,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-13 23:32:03,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:32:03,288 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 23:32:03,291 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:32:03,468 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 23:32:03,469 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:32:03,469 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:32:03,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156197309] [2024-11-13 23:32:03,469 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 23:32:03,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1283455111] [2024-11-13 23:32:03,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1283455111] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:32:03,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:32:03,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 23:32:03,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522351569] [2024-11-13 23:32:03,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:32:03,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 23:32:03,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:32:03,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 23:32:03,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-13 23:32:03,471 INFO L87 Difference]: Start difference. First operand 303 states and 404 transitions. Second operand has 8 states, 6 states have (on average 4.333333333333333) internal successors, (26), 7 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 23:32:04,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:32:04,166 INFO L93 Difference]: Finished difference Result 311 states and 407 transitions. [2024-11-13 23:32:04,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 23:32:04,166 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 4.333333333333333) internal successors, (26), 7 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 35 [2024-11-13 23:32:04,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:32:04,168 INFO L225 Difference]: With dead ends: 311 [2024-11-13 23:32:04,168 INFO L226 Difference]: Without dead ends: 301 [2024-11-13 23:32:04,169 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-13 23:32:04,170 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 156 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 23:32:04,170 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 196 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 23:32:04,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2024-11-13 23:32:04,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 297. [2024-11-13 23:32:04,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 246 states have (on average 1.491869918699187) internal successors, (367), 282 states have internal predecessors, (367), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-13 23:32:04,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 391 transitions. [2024-11-13 23:32:04,196 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 391 transitions. Word has length 35 [2024-11-13 23:32:04,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:32:04,196 INFO L471 AbstractCegarLoop]: Abstraction has 297 states and 391 transitions. [2024-11-13 23:32:04,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 4.333333333333333) internal successors, (26), 7 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 23:32:04,197 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 391 transitions. [2024-11-13 23:32:04,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-13 23:32:04,197 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:32:04,197 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:32:04,224 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-13 23:32:04,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:32:04,403 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 23:32:04,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:32:04,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1985528689, now seen corresponding path program 1 times [2024-11-13 23:32:04,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:32:04,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168947109] [2024-11-13 23:32:04,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:32:04,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:32:04,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 23:32:04,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [918735547] [2024-11-13 23:32:04,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:32:04,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:32:04,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:32:04,441 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:32:04,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-13 23:32:04,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:32:04,517 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-13 23:32:04,519 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:32:05,340 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 23:32:05,340 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:32:06,751 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:32:06,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168947109] [2024-11-13 23:32:06,752 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 23:32:06,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [918735547] [2024-11-13 23:32:06,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [918735547] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:32:06,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1208846199] [2024-11-13 23:32:06,754 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-13 23:32:06,755 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:32:06,755 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:32:06,755 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:32:06,755 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:32:09,957 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 81 for LOIs [2024-11-13 23:32:10,081 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-13 23:32:10,082 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:32:35,469 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '10618#(and (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 100) (= |ULTIMATE.start_main_~q~0#1| 0) (exists ((|v_ULTIMATE.start_main_~b~0#1_91| Int) (|v_ULTIMATE.start_main_~a~0#1_92| Int)) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~b~0#1_91| |v_ULTIMATE.start_main_~a~0#1_92|))) (<= |ULTIMATE.start_main_~y~0#1| 100))' at error location [2024-11-13 23:32:35,469 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:32:35,469 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 23:32:35,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-13 23:32:35,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892966245] [2024-11-13 23:32:35,470 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 23:32:35,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 23:32:35,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:32:35,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 23:32:35,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=217, Invalid=1259, Unknown=6, NotChecked=0, Total=1482 [2024-11-13 23:32:35,471 INFO L87 Difference]: Start difference. First operand 297 states and 391 transitions. Second operand has 11 states, 9 states have (on average 2.888888888888889) internal successors, (26), 10 states have internal predecessors, (26), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 23:32:41,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:32:41,448 INFO L93 Difference]: Finished difference Result 558 states and 782 transitions. [2024-11-13 23:32:41,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 23:32:41,449 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 2.888888888888889) internal successors, (26), 10 states have internal predecessors, (26), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 35 [2024-11-13 23:32:41,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:32:41,451 INFO L225 Difference]: With dead ends: 558 [2024-11-13 23:32:41,451 INFO L226 Difference]: Without dead ends: 452 [2024-11-13 23:32:41,453 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 42 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 691 ImplicationChecksByTransitivity, 29.4s TimeCoverageRelationStatistics Valid=372, Invalid=1973, Unknown=7, NotChecked=0, Total=2352 [2024-11-13 23:32:41,454 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 470 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 994 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 472 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 1075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-13 23:32:41,454 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [472 Valid, 174 Invalid, 1075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 994 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-13 23:32:41,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2024-11-13 23:32:41,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 339. [2024-11-13 23:32:41,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 288 states have (on average 1.4236111111111112) internal successors, (410), 324 states have internal predecessors, (410), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-13 23:32:41,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 434 transitions. [2024-11-13 23:32:41,479 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 434 transitions. Word has length 35 [2024-11-13 23:32:41,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:32:41,480 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 434 transitions. [2024-11-13 23:32:41,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 2.888888888888889) internal successors, (26), 10 states have internal predecessors, (26), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 23:32:41,480 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 434 transitions. [2024-11-13 23:32:41,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-13 23:32:41,481 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:32:41,481 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:32:41,506 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-13 23:32:41,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:32:41,685 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 23:32:41,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:32:41,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1196113545, now seen corresponding path program 1 times [2024-11-13 23:32:41,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:32:41,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958026628] [2024-11-13 23:32:41,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:32:41,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:32:41,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 23:32:41,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [359922946] [2024-11-13 23:32:41,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:32:41,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:32:41,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:32:41,732 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:32:41,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-13 23:32:41,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:32:41,797 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 23:32:41,799 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:32:42,093 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 23:32:42,093 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:32:42,093 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:32:42,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958026628] [2024-11-13 23:32:42,093 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 23:32:42,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [359922946] [2024-11-13 23:32:42,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [359922946] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:32:42,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:32:42,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 23:32:42,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826194223] [2024-11-13 23:32:42,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:32:42,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 23:32:42,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:32:42,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 23:32:42,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-13 23:32:42,095 INFO L87 Difference]: Start difference. First operand 339 states and 434 transitions. Second operand has 7 states, 6 states have (on average 4.5) internal successors, (27), 7 states have internal predecessors, (27), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 23:32:43,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:32:43,133 INFO L93 Difference]: Finished difference Result 427 states and 563 transitions. [2024-11-13 23:32:43,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 23:32:43,133 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.5) internal successors, (27), 7 states have internal predecessors, (27), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 37 [2024-11-13 23:32:43,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:32:43,135 INFO L225 Difference]: With dead ends: 427 [2024-11-13 23:32:43,135 INFO L226 Difference]: Without dead ends: 420 [2024-11-13 23:32:43,136 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-13 23:32:43,137 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 406 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-13 23:32:43,137 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [408 Valid, 58 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-13 23:32:43,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2024-11-13 23:32:43,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 374. [2024-11-13 23:32:43,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 322 states have (on average 1.4316770186335404) internal successors, (461), 358 states have internal predecessors, (461), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-13 23:32:43,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 487 transitions. [2024-11-13 23:32:43,159 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 487 transitions. Word has length 37 [2024-11-13 23:32:43,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:32:43,159 INFO L471 AbstractCegarLoop]: Abstraction has 374 states and 487 transitions. [2024-11-13 23:32:43,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.5) internal successors, (27), 7 states have internal predecessors, (27), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 23:32:43,160 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 487 transitions. [2024-11-13 23:32:43,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-13 23:32:43,160 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:32:43,160 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2024-11-13 23:32:43,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-13 23:32:43,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-13 23:32:43,365 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 23:32:43,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:32:43,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1127592339, now seen corresponding path program 1 times [2024-11-13 23:32:43,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:32:43,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317842837] [2024-11-13 23:32:43,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:32:43,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:32:43,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 23:32:43,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1200850624] [2024-11-13 23:32:43,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:32:43,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:32:43,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:32:43,395 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:32:43,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-13 23:32:43,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:32:43,453 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-13 23:32:43,455 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:32:44,419 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 23:32:44,419 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:32:47,082 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:32:47,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317842837] [2024-11-13 23:32:47,082 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 23:32:47,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1200850624] [2024-11-13 23:32:47,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1200850624] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:32:47,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1777270194] [2024-11-13 23:32:47,085 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-13 23:32:47,086 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:32:47,086 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:32:47,086 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:32:47,086 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:32:49,484 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 81 for LOIs [2024-11-13 23:32:49,645 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-13 23:32:49,648 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:33:18,509 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '12770#(exists ((|v_ULTIMATE.start_main_~a~0#1_100| Int) (|v_ULTIMATE.start_main_~p~0#1_66| Int) (|v_ULTIMATE.start_main_~b~0#1_99| Int)) (and (<= 1 |#StackHeapBarrier|) (<= 0 (+ (* |v_ULTIMATE.start_main_~a~0#1_100| |v_ULTIMATE.start_main_~b~0#1_99|) 9223372036854775808)) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 0 (+ 2305843009213693952 (div |v_ULTIMATE.start_main_~p~0#1_66| 4))) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= (div |v_ULTIMATE.start_main_~p~0#1_66| 4) 2305843009213693951) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~a~0#1_100| |v_ULTIMATE.start_main_~b~0#1_99| |v_ULTIMATE.start_main_~p~0#1_66|)) (<= |ULTIMATE.start_main_~x~0#1| 100) (= |ULTIMATE.start_main_~q~0#1| 0) (= (mod |v_ULTIMATE.start_main_~p~0#1_66| 4) 0) (<= (* |v_ULTIMATE.start_main_~a~0#1_100| |v_ULTIMATE.start_main_~b~0#1_99|) 9223372036854775807) (<= |ULTIMATE.start_main_~y~0#1| 100) (exists ((|v_ULTIMATE.start_main_~b~0#1_98| Int)) (and (<= (div |v_ULTIMATE.start_main_~b~0#1_98| 2) 9223372036854775807) (= (mod |v_ULTIMATE.start_main_~b~0#1_98| 2) 0) (= |v_ULTIMATE.start_main_~b~0#1_99| (div |v_ULTIMATE.start_main_~b~0#1_98| 2)))) (exists ((|v_ULTIMATE.start_main_~a~0#1_99| Int)) (and (= (div |v_ULTIMATE.start_main_~a~0#1_99| 2) |v_ULTIMATE.start_main_~a~0#1_100|) (<= (div |v_ULTIMATE.start_main_~a~0#1_99| 2) 9223372036854775807) (= (mod |v_ULTIMATE.start_main_~a~0#1_99| 2) 0)))))' at error location [2024-11-13 23:33:18,509 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:33:18,509 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 23:33:18,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-13 23:33:18,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927489539] [2024-11-13 23:33:18,510 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 23:33:18,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 23:33:18,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:33:18,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 23:33:18,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=225, Invalid=1331, Unknown=4, NotChecked=0, Total=1560 [2024-11-13 23:33:18,511 INFO L87 Difference]: Start difference. First operand 374 states and 487 transitions. Second operand has 12 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 23:33:19,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:33:19,929 INFO L93 Difference]: Finished difference Result 418 states and 542 transitions. [2024-11-13 23:33:19,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 23:33:19,929 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 37 [2024-11-13 23:33:19,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:33:19,931 INFO L225 Difference]: With dead ends: 418 [2024-11-13 23:33:19,931 INFO L226 Difference]: Without dead ends: 417 [2024-11-13 23:33:19,932 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 46 SyntacticMatches, 3 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 748 ImplicationChecksByTransitivity, 31.0s TimeCoverageRelationStatistics Valid=297, Invalid=1769, Unknown=4, NotChecked=0, Total=2070 [2024-11-13 23:33:19,933 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 218 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:33:19,934 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 146 Invalid, 582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-13 23:33:19,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-11-13 23:33:19,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 384. [2024-11-13 23:33:19,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 332 states have (on average 1.4156626506024097) internal successors, (470), 368 states have internal predecessors, (470), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-13 23:33:19,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 496 transitions. [2024-11-13 23:33:19,956 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 496 transitions. Word has length 37 [2024-11-13 23:33:19,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:33:19,957 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 496 transitions. [2024-11-13 23:33:19,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 23:33:19,957 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 496 transitions. [2024-11-13 23:33:19,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-13 23:33:19,957 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:33:19,957 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:33:19,979 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-13 23:33:20,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-13 23:33:20,164 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 23:33:20,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:33:20,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1575185631, now seen corresponding path program 1 times [2024-11-13 23:33:20,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:33:20,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465656769] [2024-11-13 23:33:20,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:33:20,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:33:20,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 23:33:20,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1974970140] [2024-11-13 23:33:20,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:33:20,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:33:20,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:33:20,208 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:33:20,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-13 23:33:20,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:33:20,271 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 23:33:20,272 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:33:20,531 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 23:33:20,531 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:33:20,531 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:33:20,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465656769] [2024-11-13 23:33:20,531 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 23:33:20,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1974970140] [2024-11-13 23:33:20,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1974970140] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:33:20,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:33:20,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 23:33:20,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385454708] [2024-11-13 23:33:20,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:33:20,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 23:33:20,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:33:20,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 23:33:20,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-13 23:33:20,533 INFO L87 Difference]: Start difference. First operand 384 states and 496 transitions. Second operand has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 23:33:21,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:33:21,398 INFO L93 Difference]: Finished difference Result 410 states and 529 transitions. [2024-11-13 23:33:21,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 23:33:21,399 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 38 [2024-11-13 23:33:21,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:33:21,400 INFO L225 Difference]: With dead ends: 410 [2024-11-13 23:33:21,400 INFO L226 Difference]: Without dead ends: 409 [2024-11-13 23:33:21,401 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-13 23:33:21,401 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 220 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 23:33:21,402 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 79 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 23:33:21,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2024-11-13 23:33:21,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 384. [2024-11-13 23:33:21,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 332 states have (on average 1.4096385542168675) internal successors, (468), 368 states have internal predecessors, (468), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-13 23:33:21,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 494 transitions. [2024-11-13 23:33:21,425 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 494 transitions. Word has length 38 [2024-11-13 23:33:21,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:33:21,425 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 494 transitions. [2024-11-13 23:33:21,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 23:33:21,426 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 494 transitions. [2024-11-13 23:33:21,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-13 23:33:21,426 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:33:21,426 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:33:21,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-13 23:33:21,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:33:21,631 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 23:33:21,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:33:21,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1586114165, now seen corresponding path program 1 times [2024-11-13 23:33:21,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:33:21,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746074895] [2024-11-13 23:33:21,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:33:21,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:33:21,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:33:21,773 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 23:33:21,773 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:33:21,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746074895] [2024-11-13 23:33:21,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746074895] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:33:21,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:33:21,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:33:21,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226021094] [2024-11-13 23:33:21,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:33:21,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 23:33:21,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:33:21,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 23:33:21,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:33:21,774 INFO L87 Difference]: Start difference. First operand 384 states and 494 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 23:33:22,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:33:22,350 INFO L93 Difference]: Finished difference Result 404 states and 511 transitions. [2024-11-13 23:33:22,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 23:33:22,351 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 39 [2024-11-13 23:33:22,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:33:22,352 INFO L225 Difference]: With dead ends: 404 [2024-11-13 23:33:22,352 INFO L226 Difference]: Without dead ends: 403 [2024-11-13 23:33:22,352 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:33:22,353 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 28 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 23:33:22,353 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 174 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 23:33:22,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2024-11-13 23:33:22,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 395. [2024-11-13 23:33:22,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 343 states have (on average 1.402332361516035) internal successors, (481), 379 states have internal predecessors, (481), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-13 23:33:22,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 507 transitions. [2024-11-13 23:33:22,376 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 507 transitions. Word has length 39 [2024-11-13 23:33:22,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:33:22,376 INFO L471 AbstractCegarLoop]: Abstraction has 395 states and 507 transitions. [2024-11-13 23:33:22,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 23:33:22,376 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 507 transitions. [2024-11-13 23:33:22,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-13 23:33:22,377 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:33:22,377 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-11-13 23:33:22,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-13 23:33:22,378 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 23:33:22,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:33:22,378 INFO L85 PathProgramCache]: Analyzing trace with hash 146318269, now seen corresponding path program 1 times [2024-11-13 23:33:22,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:33:22,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694058124] [2024-11-13 23:33:22,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:33:22,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:33:22,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 23:33:22,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1323928957] [2024-11-13 23:33:22,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:33:22,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:33:22,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:33:22,394 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:33:22,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-13 23:33:22,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:33:22,446 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-13 23:33:22,447 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:33:22,752 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 23:33:22,752 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:33:22,752 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:33:22,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694058124] [2024-11-13 23:33:22,752 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 23:33:22,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323928957] [2024-11-13 23:33:22,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1323928957] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:33:22,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:33:22,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 23:33:22,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757404755] [2024-11-13 23:33:22,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:33:22,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 23:33:22,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:33:22,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 23:33:22,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-13 23:33:22,754 INFO L87 Difference]: Start difference. First operand 395 states and 507 transitions. Second operand has 7 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 23:33:23,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:33:23,395 INFO L93 Difference]: Finished difference Result 427 states and 545 transitions. [2024-11-13 23:33:23,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 23:33:23,395 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 39 [2024-11-13 23:33:23,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:33:23,396 INFO L225 Difference]: With dead ends: 427 [2024-11-13 23:33:23,396 INFO L226 Difference]: Without dead ends: 425 [2024-11-13 23:33:23,396 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-13 23:33:23,397 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 156 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 23:33:23,397 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 172 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 23:33:23,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2024-11-13 23:33:23,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 414. [2024-11-13 23:33:23,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 361 states have (on average 1.3933518005540166) internal successors, (503), 397 states have internal predecessors, (503), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-13 23:33:23,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 531 transitions. [2024-11-13 23:33:23,422 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 531 transitions. Word has length 39 [2024-11-13 23:33:23,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:33:23,423 INFO L471 AbstractCegarLoop]: Abstraction has 414 states and 531 transitions. [2024-11-13 23:33:23,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 23:33:23,423 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 531 transitions. [2024-11-13 23:33:23,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-13 23:33:23,424 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:33:23,424 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:33:23,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-13 23:33:23,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:33:23,628 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 23:33:23,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:33:23,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1924898717, now seen corresponding path program 1 times [2024-11-13 23:33:23,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:33:23,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452814172] [2024-11-13 23:33:23,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:33:23,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:33:23,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:33:23,735 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 23:33:23,735 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:33:23,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452814172] [2024-11-13 23:33:23,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452814172] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:33:23,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:33:23,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:33:23,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142611252] [2024-11-13 23:33:23,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:33:23,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 23:33:23,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:33:23,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 23:33:23,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:33:23,738 INFO L87 Difference]: Start difference. First operand 414 states and 531 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 23:33:24,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:33:24,469 INFO L93 Difference]: Finished difference Result 423 states and 533 transitions. [2024-11-13 23:33:24,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 23:33:24,469 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 40 [2024-11-13 23:33:24,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:33:24,471 INFO L225 Difference]: With dead ends: 423 [2024-11-13 23:33:24,472 INFO L226 Difference]: Without dead ends: 422 [2024-11-13 23:33:24,472 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:33:24,472 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 26 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 23:33:24,472 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 177 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 23:33:24,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2024-11-13 23:33:24,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 415. [2024-11-13 23:33:24,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 362 states have (on average 1.3895027624309393) internal successors, (503), 398 states have internal predecessors, (503), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-13 23:33:24,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 531 transitions. [2024-11-13 23:33:24,497 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 531 transitions. Word has length 40 [2024-11-13 23:33:24,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:33:24,497 INFO L471 AbstractCegarLoop]: Abstraction has 415 states and 531 transitions. [2024-11-13 23:33:24,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 23:33:24,498 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 531 transitions. [2024-11-13 23:33:24,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-13 23:33:24,498 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:33:24,498 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:33:24,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-13 23:33:24,499 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 23:33:24,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:33:24,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1305397109, now seen corresponding path program 1 times [2024-11-13 23:33:24,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:33:24,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342724843] [2024-11-13 23:33:24,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:33:24,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:33:24,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 23:33:24,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2133520638] [2024-11-13 23:33:24,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:33:24,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:33:24,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:33:24,516 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:33:24,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-13 23:33:24,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:33:24,571 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-13 23:33:24,572 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:33:24,872 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 23:33:24,873 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:33:25,549 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:33:25,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342724843] [2024-11-13 23:33:25,549 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 23:33:25,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2133520638] [2024-11-13 23:33:25,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2133520638] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:33:25,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1595628461] [2024-11-13 23:33:25,551 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2024-11-13 23:33:25,551 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:33:25,551 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:33:25,551 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:33:25,551 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:33:27,423 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 41 for LOIs [2024-11-13 23:33:27,430 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-13 23:33:27,432 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:33:31,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1595628461] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:33:31,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 23:33:31,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 22 [2024-11-13 23:33:31,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642030075] [2024-11-13 23:33:31,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:33:31,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-13 23:33:31,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:33:31,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-13 23:33:31,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=484, Unknown=0, NotChecked=0, Total=650 [2024-11-13 23:33:31,814 INFO L87 Difference]: Start difference. First operand 415 states and 531 transitions. Second operand has 18 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 11 states have internal predecessors, (25), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 23:33:33,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:33:33,893 INFO L93 Difference]: Finished difference Result 458 states and 578 transitions. [2024-11-13 23:33:33,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-13 23:33:33,894 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 11 states have internal predecessors, (25), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 40 [2024-11-13 23:33:33,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:33:33,896 INFO L225 Difference]: With dead ends: 458 [2024-11-13 23:33:33,896 INFO L226 Difference]: Without dead ends: 452 [2024-11-13 23:33:33,896 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 59 SyntacticMatches, 13 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 371 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=205, Invalid=551, Unknown=0, NotChecked=0, Total=756 [2024-11-13 23:33:33,897 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 146 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-13 23:33:33,897 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 206 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-13 23:33:33,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2024-11-13 23:33:33,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 435. [2024-11-13 23:33:33,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 381 states have (on average 1.3779527559055118) internal successors, (525), 417 states have internal predecessors, (525), 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) [2024-11-13 23:33:33,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 555 transitions. [2024-11-13 23:33:33,932 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 555 transitions. Word has length 40 [2024-11-13 23:33:33,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:33:33,933 INFO L471 AbstractCegarLoop]: Abstraction has 435 states and 555 transitions. [2024-11-13 23:33:33,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 11 states have internal predecessors, (25), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 23:33:33,933 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 555 transitions. [2024-11-13 23:33:33,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-13 23:33:33,934 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:33:33,934 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-11-13 23:33:33,955 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-13 23:33:34,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-13 23:33:34,138 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 23:33:34,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:33:34,138 INFO L85 PathProgramCache]: Analyzing trace with hash 240899100, now seen corresponding path program 1 times [2024-11-13 23:33:34,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:33:34,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156114888] [2024-11-13 23:33:34,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:33:34,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:33:34,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 23:33:34,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [587444699] [2024-11-13 23:33:34,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:33:34,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:33:34,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:33:34,163 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:33:34,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-13 23:33:34,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:33:34,215 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-13 23:33:34,217 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:33:34,985 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 23:33:34,985 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:33:35,967 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:33:35,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156114888] [2024-11-13 23:33:35,968 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 23:33:35,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [587444699] [2024-11-13 23:33:35,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [587444699] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:33:35,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1940321116] [2024-11-13 23:33:35,970 INFO L159 IcfgInterpreter]: Started Sifa with 30 locations of interest [2024-11-13 23:33:35,970 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:33:35,970 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:33:35,970 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:33:35,970 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:33:37,780 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 41 for LOIs [2024-11-13 23:33:37,787 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-13 23:33:37,789 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:33:42,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1940321116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:33:42,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 23:33:42,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [9] total 24 [2024-11-13 23:33:42,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775311563] [2024-11-13 23:33:42,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:33:42,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-13 23:33:42,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:33:42,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-13 23:33:42,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=669, Unknown=0, NotChecked=0, Total=870 [2024-11-13 23:33:42,435 INFO L87 Difference]: Start difference. First operand 435 states and 555 transitions. Second operand has 17 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 10 states have internal predecessors, (24), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 23:33:43,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:33:43,967 INFO L93 Difference]: Finished difference Result 451 states and 570 transitions. [2024-11-13 23:33:43,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-13 23:33:43,968 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 10 states have internal predecessors, (24), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 40 [2024-11-13 23:33:43,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:33:43,970 INFO L225 Difference]: With dead ends: 451 [2024-11-13 23:33:43,970 INFO L226 Difference]: Without dead ends: 449 [2024-11-13 23:33:43,971 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 69 SyntacticMatches, 15 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 555 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=242, Invalid=750, Unknown=0, NotChecked=0, Total=992 [2024-11-13 23:33:43,972 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 254 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-13 23:33:43,972 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 174 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-13 23:33:43,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2024-11-13 23:33:44,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 429. [2024-11-13 23:33:44,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 375 states have (on average 1.3786666666666667) internal successors, (517), 411 states have internal predecessors, (517), 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) [2024-11-13 23:33:44,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 547 transitions. [2024-11-13 23:33:44,011 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 547 transitions. Word has length 40 [2024-11-13 23:33:44,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:33:44,012 INFO L471 AbstractCegarLoop]: Abstraction has 429 states and 547 transitions. [2024-11-13 23:33:44,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 10 states have internal predecessors, (24), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 23:33:44,012 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 547 transitions. [2024-11-13 23:33:44,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-13 23:33:44,013 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:33:44,013 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:33:44,036 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-13 23:33:44,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-13 23:33:44,214 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 23:33:44,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:33:44,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1303238981, now seen corresponding path program 1 times [2024-11-13 23:33:44,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:33:44,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504336009] [2024-11-13 23:33:44,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:33:44,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:33:44,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 23:33:44,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1020273805] [2024-11-13 23:33:44,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:33:44,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:33:44,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:33:44,238 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:33:44,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-13 23:33:44,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:33:44,303 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-13 23:33:44,304 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:33:44,523 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 23:33:44,523 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:33:44,974 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 23:33:44,975 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:33:44,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504336009] [2024-11-13 23:33:44,975 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 23:33:44,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1020273805] [2024-11-13 23:33:44,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1020273805] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:33:44,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1836903031] [2024-11-13 23:33:44,977 INFO L159 IcfgInterpreter]: Started Sifa with 37 locations of interest [2024-11-13 23:33:44,977 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:33:44,978 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:33:44,978 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:33:44,978 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:33:46,848 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 90 for LOIs [2024-11-13 23:33:46,900 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-13 23:33:46,901 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:33:52,040 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '20041#(exists ((|v_ULTIMATE.start_main_~a~0#1_117| Int) (|v_ULTIMATE.start_main_~b~0#1_115| Int)) (and (<= (+ 9223372036854775809 (* |v_ULTIMATE.start_main_~a~0#1_117| |v_ULTIMATE.start_main_~b~0#1_115|)) 0) (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (= |ULTIMATE.start_main_~p~0#1| 1) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~q~0#1|)) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= 0 (+ |v_ULTIMATE.start_main_~a~0#1_117| 9223372036854775808 |v_ULTIMATE.start_main_~b~0#1_115|)) (<= |ULTIMATE.start_main_~x~0#1| 100) (<= |ULTIMATE.start_main_~q~0#1| 9223372036854775807) (<= |v_ULTIMATE.start_main_~b~0#1_115| 99) (<= |v_ULTIMATE.start_main_~a~0#1_117| 99) (<= |ULTIMATE.start_main_~y~0#1| 100)))' at error location [2024-11-13 23:33:52,040 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:33:52,040 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 23:33:52,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 12 [2024-11-13 23:33:52,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528326757] [2024-11-13 23:33:52,041 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 23:33:52,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 23:33:52,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:33:52,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 23:33:52,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=236, Invalid=1170, Unknown=0, NotChecked=0, Total=1406 [2024-11-13 23:33:52,042 INFO L87 Difference]: Start difference. First operand 429 states and 547 transitions. Second operand has 13 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2024-11-13 23:33:52,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:33:52,972 INFO L93 Difference]: Finished difference Result 549 states and 734 transitions. [2024-11-13 23:33:52,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 23:33:52,973 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) Word has length 42 [2024-11-13 23:33:52,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:33:52,975 INFO L225 Difference]: With dead ends: 549 [2024-11-13 23:33:52,975 INFO L226 Difference]: Without dead ends: 540 [2024-11-13 23:33:52,976 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 78 SyntacticMatches, 10 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 879 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=282, Invalid=1440, Unknown=0, NotChecked=0, Total=1722 [2024-11-13 23:33:52,976 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 262 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 23:33:52,977 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 80 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 23:33:52,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2024-11-13 23:33:53,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 412. [2024-11-13 23:33:53,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 367 states have (on average 1.337874659400545) internal successors, (491), 394 states have internal predecessors, (491), 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) [2024-11-13 23:33:53,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 521 transitions. [2024-11-13 23:33:53,016 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 521 transitions. Word has length 42 [2024-11-13 23:33:53,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:33:53,016 INFO L471 AbstractCegarLoop]: Abstraction has 412 states and 521 transitions. [2024-11-13 23:33:53,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2024-11-13 23:33:53,016 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 521 transitions. [2024-11-13 23:33:53,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-13 23:33:53,017 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:33:53,017 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:33:53,038 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-13 23:33:53,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-13 23:33:53,218 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 23:33:53,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:33:53,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1745702796, now seen corresponding path program 1 times [2024-11-13 23:33:53,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:33:53,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296095117] [2024-11-13 23:33:53,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:33:53,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:33:53,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 23:33:53,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1605479338] [2024-11-13 23:33:53,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:33:53,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:33:53,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:33:53,252 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:33:53,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-13 23:33:53,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:33:53,296 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 23:33:53,297 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:33:53,950 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 23:33:53,951 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:33:56,123 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 23:33:56,123 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:33:56,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296095117] [2024-11-13 23:33:56,123 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 23:33:56,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1605479338] [2024-11-13 23:33:56,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1605479338] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:33:56,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [503477637] [2024-11-13 23:33:56,126 INFO L159 IcfgInterpreter]: Started Sifa with 37 locations of interest [2024-11-13 23:33:56,126 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:33:56,126 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:33:56,126 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:33:56,126 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:33:57,635 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 90 for LOIs [2024-11-13 23:33:57,691 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-13 23:33:57,692 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:34:03,439 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '21388#(and (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (= |ULTIMATE.start_main_~p~0#1| 1) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~q~0#1|)) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 100) (<= |ULTIMATE.start_main_~q~0#1| 9223372036854775807) (exists ((|v_ULTIMATE.start_main_~a~0#1_126| Int) (|v_ULTIMATE.start_main_~b~0#1_123| Int)) (and (<= 0 (+ |v_ULTIMATE.start_main_~a~0#1_126| 9223372036854775907)) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~a~0#1_126| |v_ULTIMATE.start_main_~b~0#1_123|)) (<= |v_ULTIMATE.start_main_~a~0#1_126| 100) (<= |v_ULTIMATE.start_main_~b~0#1_123| 100) (<= 0 (+ 9223372036854775907 |v_ULTIMATE.start_main_~b~0#1_123|)))) (<= |ULTIMATE.start_main_~y~0#1| 100))' at error location [2024-11-13 23:34:03,439 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:34:03,439 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 23:34:03,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-11-13 23:34:03,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210003054] [2024-11-13 23:34:03,439 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 23:34:03,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-13 23:34:03,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:34:03,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-13 23:34:03,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=1344, Unknown=0, NotChecked=0, Total=1560 [2024-11-13 23:34:03,441 INFO L87 Difference]: Start difference. First operand 412 states and 521 transitions. Second operand has 15 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 6 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-13 23:34:06,482 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (= |c_ULTIMATE.start_main_~b~0#1| 0)) (.cse1 (* |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~b~0#1|))) (and (or (forall ((|ULTIMATE.start_main_~a~0#1| Int)) (or (< (* |ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~b~0#1|) (+ 9223372036854775807 |ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~b~0#1|)) (< 9223372036854775807 (* |c_ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~b~0#1|)))) .cse0) (or .cse0 (< .cse1 (+ |c_ULTIMATE.start_main_~a~0#1| 9223372036854775807 |c_ULTIMATE.start_main_~b~0#1|))) (<= |c_ULTIMATE.start_main_~y~0#1| 100) (<= 1 |c_ULTIMATE.start_main_~y~0#1|) (<= .cse1 9223372036854775807))) is different from false [2024-11-13 23:34:16,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:34:16,828 INFO L93 Difference]: Finished difference Result 873 states and 1142 transitions. [2024-11-13 23:34:16,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-13 23:34:16,828 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 6 states have call predecessors, (7), 4 states have call successors, (7) Word has length 43 [2024-11-13 23:34:16,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:34:16,831 INFO L225 Difference]: With dead ends: 873 [2024-11-13 23:34:16,831 INFO L226 Difference]: Without dead ends: 842 [2024-11-13 23:34:16,832 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 80 SyntacticMatches, 9 SemanticMatches, 48 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 930 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=329, Invalid=2026, Unknown=1, NotChecked=94, Total=2450 [2024-11-13 23:34:16,832 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 425 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 1309 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 1387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 14 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2024-11-13 23:34:16,832 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 261 Invalid, 1387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1309 Invalid, 0 Unknown, 14 Unchecked, 9.7s Time] [2024-11-13 23:34:16,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 842 states. [2024-11-13 23:34:16,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 842 to 627. [2024-11-13 23:34:16,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 578 states have (on average 1.3373702422145328) internal successors, (773), 604 states have internal predecessors, (773), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-13 23:34:16,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 813 transitions. [2024-11-13 23:34:16,885 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 813 transitions. Word has length 43 [2024-11-13 23:34:16,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:34:16,885 INFO L471 AbstractCegarLoop]: Abstraction has 627 states and 813 transitions. [2024-11-13 23:34:16,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 6 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-13 23:34:16,886 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 813 transitions. [2024-11-13 23:34:16,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-13 23:34:16,886 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:34:16,887 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:34:16,908 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-13 23:34:17,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:34:17,087 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 23:34:17,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:34:17,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1717788121, now seen corresponding path program 1 times [2024-11-13 23:34:17,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:34:17,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791091247] [2024-11-13 23:34:17,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:34:17,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:34:17,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 23:34:17,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [237633714] [2024-11-13 23:34:17,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:34:17,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:34:17,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:34:17,104 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:34:17,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-13 23:34:17,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:34:17,156 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-13 23:34:17,157 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:34:17,477 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 23:34:17,477 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:34:18,092 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:34:18,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791091247] [2024-11-13 23:34:18,092 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 23:34:18,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [237633714] [2024-11-13 23:34:18,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [237633714] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:34:18,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [845509507] [2024-11-13 23:34:18,093 INFO L159 IcfgInterpreter]: Started Sifa with 37 locations of interest [2024-11-13 23:34:18,093 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:34:18,094 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:34:18,094 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:34:18,094 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:34:19,352 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 90 for LOIs [2024-11-13 23:34:19,412 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-13 23:34:19,413 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:34:25,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [845509507] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:34:25,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 23:34:25,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [7] total 31 [2024-11-13 23:34:25,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556285863] [2024-11-13 23:34:25,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:34:25,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-13 23:34:25,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:34:25,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-13 23:34:25,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=1083, Unknown=0, NotChecked=0, Total=1260 [2024-11-13 23:34:25,163 INFO L87 Difference]: Start difference. First operand 627 states and 813 transitions. Second operand has 26 states, 20 states have (on average 1.55) internal successors, (31), 20 states have internal predecessors, (31), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 23:34:35,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:34:35,649 INFO L93 Difference]: Finished difference Result 756 states and 983 transitions. [2024-11-13 23:34:35,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-13 23:34:35,650 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 20 states have (on average 1.55) internal successors, (31), 20 states have internal predecessors, (31), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 44 [2024-11-13 23:34:35,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:34:35,651 INFO L225 Difference]: With dead ends: 756 [2024-11-13 23:34:35,651 INFO L226 Difference]: Without dead ends: 753 [2024-11-13 23:34:35,653 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 63 SyntacticMatches, 11 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1265 ImplicationChecksByTransitivity, 12.8s TimeCoverageRelationStatistics Valid=928, Invalid=3628, Unknown=0, NotChecked=0, Total=4556 [2024-11-13 23:34:35,653 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 325 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 1194 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 1247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-13 23:34:35,653 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 90 Invalid, 1247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1194 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-13 23:34:35,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2024-11-13 23:34:35,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 675. [2024-11-13 23:34:35,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 625 states have (on average 1.3344) internal successors, (834), 651 states have internal predecessors, (834), 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) [2024-11-13 23:34:35,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 876 transitions. [2024-11-13 23:34:35,735 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 876 transitions. Word has length 44 [2024-11-13 23:34:35,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:34:35,735 INFO L471 AbstractCegarLoop]: Abstraction has 675 states and 876 transitions. [2024-11-13 23:34:35,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 20 states have (on average 1.55) internal successors, (31), 20 states have internal predecessors, (31), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 23:34:35,735 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 876 transitions. [2024-11-13 23:34:35,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-13 23:34:35,736 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:34:35,736 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:34:35,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-13 23:34:35,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:34:35,938 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 23:34:35,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:34:35,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1526940919, now seen corresponding path program 1 times [2024-11-13 23:34:35,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:34:35,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607206298] [2024-11-13 23:34:35,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:34:35,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:34:35,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 23:34:35,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1661147535] [2024-11-13 23:34:35,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:34:35,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:34:35,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:34:35,972 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:34:35,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-13 23:34:36,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:34:36,038 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-13 23:34:36,039 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:34:36,561 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 23:34:36,561 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:34:39,882 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:34:39,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607206298] [2024-11-13 23:34:39,882 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 23:34:39,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1661147535] [2024-11-13 23:34:39,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1661147535] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:34:39,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2046483413] [2024-11-13 23:34:39,884 INFO L159 IcfgInterpreter]: Started Sifa with 37 locations of interest [2024-11-13 23:34:39,884 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:34:39,884 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:34:39,884 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:34:39,884 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:34:41,161 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 90 for LOIs [2024-11-13 23:34:41,202 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-13 23:34:41,203 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:34:47,424 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '25094#(and (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (exists ((|v_ULTIMATE.start_main_~a~0#1_142| Int) (|v_ULTIMATE.start_main_~b~0#1_137| Int)) (and (<= (+ (* |v_ULTIMATE.start_main_~a~0#1_142| |v_ULTIMATE.start_main_~b~0#1_137|) 1) 0) (<= |v_ULTIMATE.start_main_~b~0#1_137| 100) (<= 0 (+ 9223372036854775907 |v_ULTIMATE.start_main_~b~0#1_137|)) (<= |v_ULTIMATE.start_main_~a~0#1_142| 100) (<= 0 (+ |v_ULTIMATE.start_main_~a~0#1_142| 9223372036854775907)))) (<= |ULTIMATE.start_main_~x~0#1| 100) (<= |ULTIMATE.start_main_~y~0#1| 100))' at error location [2024-11-13 23:34:47,424 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:34:47,424 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 23:34:47,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-13 23:34:47,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720024750] [2024-11-13 23:34:47,425 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 23:34:47,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 23:34:47,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:34:47,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 23:34:47,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=225, Invalid=1335, Unknown=0, NotChecked=0, Total=1560 [2024-11-13 23:34:47,426 INFO L87 Difference]: Start difference. First operand 675 states and 876 transitions. Second operand has 9 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 23:34:48,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:34:48,343 INFO L93 Difference]: Finished difference Result 773 states and 998 transitions. [2024-11-13 23:34:48,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 23:34:48,344 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 46 [2024-11-13 23:34:48,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:34:48,345 INFO L225 Difference]: With dead ends: 773 [2024-11-13 23:34:48,345 INFO L226 Difference]: Without dead ends: 765 [2024-11-13 23:34:48,346 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 66 SyntacticMatches, 10 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 972 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=312, Invalid=1758, Unknown=0, NotChecked=0, Total=2070 [2024-11-13 23:34:48,347 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 201 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 23:34:48,347 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 93 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 23:34:48,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2024-11-13 23:34:48,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 644. [2024-11-13 23:34:48,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 595 states have (on average 1.2873949579831934) internal successors, (766), 621 states have internal predecessors, (766), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-13 23:34:48,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 806 transitions. [2024-11-13 23:34:48,407 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 806 transitions. Word has length 46 [2024-11-13 23:34:48,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:34:48,408 INFO L471 AbstractCegarLoop]: Abstraction has 644 states and 806 transitions. [2024-11-13 23:34:48,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 23:34:48,408 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 806 transitions. [2024-11-13 23:34:48,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-13 23:34:48,409 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:34:48,409 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-11-13 23:34:48,431 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-13 23:34:48,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:34:48,613 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 23:34:48,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:34:48,613 INFO L85 PathProgramCache]: Analyzing trace with hash -90528176, now seen corresponding path program 1 times [2024-11-13 23:34:48,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:34:48,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954793894] [2024-11-13 23:34:48,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:34:48,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:34:48,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 23:34:48,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [711681075] [2024-11-13 23:34:48,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:34:48,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:34:48,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:34:48,632 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:34:48,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-13 23:34:48,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:34:48,691 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-13 23:34:48,693 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:34:49,424 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 23:34:49,424 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:34:49,927 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:34:49,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954793894] [2024-11-13 23:34:49,928 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 23:34:49,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [711681075] [2024-11-13 23:34:49,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [711681075] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:34:49,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1680022475] [2024-11-13 23:34:49,929 INFO L159 IcfgInterpreter]: Started Sifa with 37 locations of interest [2024-11-13 23:34:49,929 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:34:49,930 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:34:49,930 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:34:49,930 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:34:51,104 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 90 for LOIs [2024-11-13 23:34:51,140 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-13 23:34:51,141 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:34:57,335 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '26929#(and (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 100) (<= |ULTIMATE.start_main_~y~0#1| 100) (exists ((|v_ULTIMATE.start_main_~a~0#1_152| Int) (|v_ULTIMATE.start_main_~b~0#1_145| Int)) (and (<= |v_ULTIMATE.start_main_~b~0#1_145| 100) (<= 1 (* |v_ULTIMATE.start_main_~a~0#1_152| |v_ULTIMATE.start_main_~b~0#1_145|)) (<= 0 (+ 9223372036854775907 |v_ULTIMATE.start_main_~b~0#1_145|)) (<= 0 (+ |v_ULTIMATE.start_main_~a~0#1_152| 9223372036854775907)) (<= |v_ULTIMATE.start_main_~a~0#1_152| 100))))' at error location [2024-11-13 23:34:57,335 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:34:57,336 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 23:34:57,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-13 23:34:57,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121914276] [2024-11-13 23:34:57,336 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 23:34:57,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 23:34:57,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:34:57,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 23:34:57,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=243, Invalid=1239, Unknown=0, NotChecked=0, Total=1482 [2024-11-13 23:34:57,337 INFO L87 Difference]: Start difference. First operand 644 states and 806 transitions. Second operand has 9 states, 7 states have (on average 5.428571428571429) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 23:34:58,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:34:58,397 INFO L93 Difference]: Finished difference Result 675 states and 841 transitions. [2024-11-13 23:34:58,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 23:34:58,398 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 5.428571428571429) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 47 [2024-11-13 23:34:58,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:34:58,399 INFO L225 Difference]: With dead ends: 675 [2024-11-13 23:34:58,400 INFO L226 Difference]: Without dead ends: 674 [2024-11-13 23:34:58,400 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 85 SyntacticMatches, 11 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 784 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=312, Invalid=1668, Unknown=0, NotChecked=0, Total=1980 [2024-11-13 23:34:58,401 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 145 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 23:34:58,401 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 121 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 23:34:58,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2024-11-13 23:34:58,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 651. [2024-11-13 23:34:58,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 651 states, 602 states have (on average 1.2840531561461794) internal successors, (773), 628 states have internal predecessors, (773), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-13 23:34:58,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 813 transitions. [2024-11-13 23:34:58,473 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 813 transitions. Word has length 47 [2024-11-13 23:34:58,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:34:58,473 INFO L471 AbstractCegarLoop]: Abstraction has 651 states and 813 transitions. [2024-11-13 23:34:58,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 5.428571428571429) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 23:34:58,473 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 813 transitions. [2024-11-13 23:34:58,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-13 23:34:58,474 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:34:58,475 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-11-13 23:34:58,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-11-13 23:34:58,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:34:58,679 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 23:34:58,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:34:58,679 INFO L85 PathProgramCache]: Analyzing trace with hash 791815314, now seen corresponding path program 1 times [2024-11-13 23:34:58,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:34:58,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202218238] [2024-11-13 23:34:58,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:34:58,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:34:58,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 23:34:58,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1048093964] [2024-11-13 23:34:58,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:34:58,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:34:58,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:34:58,705 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:34:58,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-13 23:34:58,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:34:58,774 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-13 23:34:58,776 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:35:04,160 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 23:35:04,160 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:35:05,685 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 23:35:05,685 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:35:05,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202218238] [2024-11-13 23:35:05,685 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 23:35:05,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1048093964] [2024-11-13 23:35:05,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1048093964] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 23:35:05,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 23:35:05,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [14] total 17 [2024-11-13 23:35:05,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218039193] [2024-11-13 23:35:05,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:35:05,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 23:35:05,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:35:05,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 23:35:05,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2024-11-13 23:35:05,687 INFO L87 Difference]: Start difference. First operand 651 states and 813 transitions. Second operand has 6 states, 4 states have (on average 8.75) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 23:35:09,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:35:09,166 INFO L93 Difference]: Finished difference Result 867 states and 1096 transitions. [2024-11-13 23:35:09,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 23:35:09,167 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 8.75) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 51 [2024-11-13 23:35:09,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:35:09,169 INFO L225 Difference]: With dead ends: 867 [2024-11-13 23:35:09,169 INFO L226 Difference]: Without dead ends: 866 [2024-11-13 23:35:09,170 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2024-11-13 23:35:09,170 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 47 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-13 23:35:09,170 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 147 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-13 23:35:09,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2024-11-13 23:35:09,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 650. [2024-11-13 23:35:09,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 602 states have (on average 1.2724252491694352) internal successors, (766), 627 states have internal predecessors, (766), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-13 23:35:09,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 806 transitions. [2024-11-13 23:35:09,244 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 806 transitions. Word has length 51 [2024-11-13 23:35:09,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:35:09,244 INFO L471 AbstractCegarLoop]: Abstraction has 650 states and 806 transitions. [2024-11-13 23:35:09,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 8.75) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 23:35:09,245 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 806 transitions. [2024-11-13 23:35:09,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-13 23:35:09,246 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:35:09,246 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-11-13 23:35:09,271 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-13 23:35:09,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:35:09,454 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 23:35:09,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:35:09,455 INFO L85 PathProgramCache]: Analyzing trace with hash -808406256, now seen corresponding path program 1 times [2024-11-13 23:35:09,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:35:09,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555981014] [2024-11-13 23:35:09,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:35:09,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:35:09,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 23:35:09,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [703432325] [2024-11-13 23:35:09,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:35:09,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:35:09,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:35:09,516 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:35:09,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-13 23:35:09,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:35:09,585 INFO L255 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-13 23:35:09,587 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:35:17,565 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 23:35:17,565 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:35:19,350 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 23:35:19,350 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:35:19,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555981014] [2024-11-13 23:35:19,350 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 23:35:19,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [703432325] [2024-11-13 23:35:19,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [703432325] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 23:35:19,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 23:35:19,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [15] total 18 [2024-11-13 23:35:19,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916463280] [2024-11-13 23:35:19,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:35:19,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 23:35:19,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:35:19,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 23:35:19,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2024-11-13 23:35:19,351 INFO L87 Difference]: Start difference. First operand 650 states and 806 transitions. Second operand has 6 states, 4 states have (on average 9.0) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 23:35:22,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:35:22,380 INFO L93 Difference]: Finished difference Result 855 states and 1078 transitions. [2024-11-13 23:35:22,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 23:35:22,381 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 9.0) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 52 [2024-11-13 23:35:22,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:35:22,382 INFO L225 Difference]: With dead ends: 855 [2024-11-13 23:35:22,382 INFO L226 Difference]: Without dead ends: 854 [2024-11-13 23:35:22,383 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2024-11-13 23:35:22,383 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 48 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-13 23:35:22,383 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 133 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-13 23:35:22,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2024-11-13 23:35:22,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 649. [2024-11-13 23:35:22,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 602 states have (on average 1.2641196013289036) internal successors, (761), 626 states have internal predecessors, (761), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-13 23:35:22,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 801 transitions. [2024-11-13 23:35:22,439 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 801 transitions. Word has length 52 [2024-11-13 23:35:22,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:35:22,439 INFO L471 AbstractCegarLoop]: Abstraction has 649 states and 801 transitions. [2024-11-13 23:35:22,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 9.0) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 23:35:22,439 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 801 transitions. [2024-11-13 23:35:22,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-13 23:35:22,440 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:35:22,440 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-11-13 23:35:22,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-11-13 23:35:22,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:35:22,640 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 23:35:22,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:35:22,641 INFO L85 PathProgramCache]: Analyzing trace with hash -1207430431, now seen corresponding path program 1 times [2024-11-13 23:35:22,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:35:22,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888259827] [2024-11-13 23:35:22,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:35:22,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:35:22,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:35:22,704 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-13 23:35:22,704 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:35:22,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888259827] [2024-11-13 23:35:22,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888259827] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:35:22,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [728413759] [2024-11-13 23:35:22,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:35:22,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:35:22,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:35:22,707 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:35:22,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-13 23:35:22,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:35:22,762 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 23:35:22,763 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:35:22,818 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-13 23:35:22,818 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:35:22,898 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-13 23:35:22,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [728413759] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:35:22,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [172088236] [2024-11-13 23:35:22,899 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-13 23:35:22,899 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:35:22,900 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:35:22,900 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:35:22,900 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:35:24,128 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 32 for LOIs [2024-11-13 23:35:24,136 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-13 23:35:24,137 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:35:30,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [172088236] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:35:30,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:35:30,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [3, 3, 3] total 27 [2024-11-13 23:35:30,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870730416] [2024-11-13 23:35:30,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:35:30,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-13 23:35:30,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:35:30,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-13 23:35:30,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=610, Unknown=0, NotChecked=0, Total=756 [2024-11-13 23:35:30,556 INFO L87 Difference]: Start difference. First operand 649 states and 801 transitions. Second operand has 23 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 16 states have internal predecessors, (23), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 23:35:35,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-13 23:35:36,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-13 23:35:40,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:35:40,462 INFO L93 Difference]: Finished difference Result 665 states and 814 transitions. [2024-11-13 23:35:40,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-13 23:35:40,462 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 16 states have internal predecessors, (23), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 52 [2024-11-13 23:35:40,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:35:40,465 INFO L225 Difference]: With dead ends: 665 [2024-11-13 23:35:40,465 INFO L226 Difference]: Without dead ends: 663 [2024-11-13 23:35:40,465 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 122 SyntacticMatches, 9 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 531 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=298, Invalid=1034, Unknown=0, NotChecked=0, Total=1332 [2024-11-13 23:35:40,466 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 434 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 704 mSolverCounterSat, 19 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 435 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 704 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2024-11-13 23:35:40,466 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [435 Valid, 203 Invalid, 724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 704 Invalid, 1 Unknown, 0 Unchecked, 6.8s Time] [2024-11-13 23:35:40,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663 states. [2024-11-13 23:35:40,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 638. [2024-11-13 23:35:40,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 591 states have (on average 1.2656514382402708) internal successors, (748), 615 states have internal predecessors, (748), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-13 23:35:40,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 788 transitions. [2024-11-13 23:35:40,504 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 788 transitions. Word has length 52 [2024-11-13 23:35:40,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:35:40,505 INFO L471 AbstractCegarLoop]: Abstraction has 638 states and 788 transitions. [2024-11-13 23:35:40,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 16 states have internal predecessors, (23), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 23:35:40,505 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 788 transitions. [2024-11-13 23:35:40,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-13 23:35:40,506 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:35:40,506 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 23:35:40,520 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-13 23:35:40,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-13 23:35:40,706 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 23:35:40,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:35:40,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1843777035, now seen corresponding path program 1 times [2024-11-13 23:35:40,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:35:40,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409398471] [2024-11-13 23:35:40,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:35:40,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:35:40,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:35:40,861 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-13 23:35:40,861 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:35:40,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409398471] [2024-11-13 23:35:40,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409398471] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:35:40,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:35:40,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:35:40,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848568872] [2024-11-13 23:35:40,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:35:40,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 23:35:40,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:35:40,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 23:35:40,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:35:40,863 INFO L87 Difference]: Start difference. First operand 638 states and 788 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 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) [2024-11-13 23:35:41,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:35:41,298 INFO L93 Difference]: Finished difference Result 1236 states and 1560 transitions. [2024-11-13 23:35:41,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:35:41,299 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 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 55 [2024-11-13 23:35:41,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:35:41,300 INFO L225 Difference]: With dead ends: 1236 [2024-11-13 23:35:41,300 INFO L226 Difference]: Without dead ends: 728 [2024-11-13 23:35:41,301 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:35:41,302 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 10 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 23:35:41,302 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 106 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 23:35:41,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2024-11-13 23:35:41,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 702. [2024-11-13 23:35:41,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 649 states have (on average 1.2819722650231125) internal successors, (832), 673 states have internal predecessors, (832), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-13 23:35:41,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 884 transitions. [2024-11-13 23:35:41,364 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 884 transitions. Word has length 55 [2024-11-13 23:35:41,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:35:41,364 INFO L471 AbstractCegarLoop]: Abstraction has 702 states and 884 transitions. [2024-11-13 23:35:41,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 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) [2024-11-13 23:35:41,364 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 884 transitions. [2024-11-13 23:35:41,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-13 23:35:41,365 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:35:41,365 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:35:41,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-13 23:35:41,365 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 23:35:41,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:35:41,366 INFO L85 PathProgramCache]: Analyzing trace with hash 245377316, now seen corresponding path program 1 times [2024-11-13 23:35:41,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:35:41,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574389425] [2024-11-13 23:35:41,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:35:41,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:35:41,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 23:35:41,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1488236470] [2024-11-13 23:35:41,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:35:41,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:35:41,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:35:41,400 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:35:41,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-13 23:35:41,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:35:41,460 INFO L255 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-13 23:35:41,462 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:35:42,339 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-13 23:35:42,339 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:35:52,433 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-13 23:35:52,433 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:35:52,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574389425] [2024-11-13 23:35:52,433 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 23:35:52,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1488236470] [2024-11-13 23:35:52,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1488236470] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:35:52,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1650364664] [2024-11-13 23:35:52,435 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-13 23:35:52,435 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:35:52,436 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:35:52,436 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:35:52,436 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:35:53,957 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 32 for LOIs [2024-11-13 23:35:53,963 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-13 23:35:53,964 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:36:18,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1650364664] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:36:18,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-13 23:36:18,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [12, 12] total 53 [2024-11-13 23:36:18,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418331480] [2024-11-13 23:36:18,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:36:18,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-13 23:36:18,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:36:18,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-13 23:36:18,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=571, Invalid=2286, Unknown=5, NotChecked=0, Total=2862 [2024-11-13 23:36:18,597 INFO L87 Difference]: Start difference. First operand 702 states and 884 transitions. Second operand has 33 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 26 states have internal predecessors, (35), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 23:36:36,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-13 23:36:37,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:36:37,974 INFO L93 Difference]: Finished difference Result 716 states and 897 transitions. [2024-11-13 23:36:37,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-13 23:36:37,975 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 26 states have internal predecessors, (35), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 58 [2024-11-13 23:36:37,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:36:37,978 INFO L225 Difference]: With dead ends: 716 [2024-11-13 23:36:37,978 INFO L226 Difference]: Without dead ends: 715 [2024-11-13 23:36:37,979 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 112 SyntacticMatches, 8 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1665 ImplicationChecksByTransitivity, 41.5s TimeCoverageRelationStatistics Valid=1011, Invalid=3676, Unknown=5, NotChecked=0, Total=4692 [2024-11-13 23:36:37,980 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 308 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 986 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 1004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 986 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2024-11-13 23:36:37,980 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 160 Invalid, 1004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 986 Invalid, 1 Unknown, 0 Unchecked, 9.2s Time] [2024-11-13 23:36:37,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2024-11-13 23:36:38,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 702. [2024-11-13 23:36:38,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 649 states have (on average 1.2804314329738058) internal successors, (831), 673 states have internal predecessors, (831), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-13 23:36:38,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 883 transitions. [2024-11-13 23:36:38,035 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 883 transitions. Word has length 58 [2024-11-13 23:36:38,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:36:38,035 INFO L471 AbstractCegarLoop]: Abstraction has 702 states and 883 transitions. [2024-11-13 23:36:38,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 26 states have internal predecessors, (35), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 23:36:38,035 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 883 transitions. [2024-11-13 23:36:38,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-13 23:36:38,036 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:36:38,036 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 23:36:38,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-11-13 23:36:38,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-13 23:36:38,240 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 23:36:38,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:36:38,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1409640893, now seen corresponding path program 1 times [2024-11-13 23:36:38,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:36:38,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664235359] [2024-11-13 23:36:38,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:36:38,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:36:38,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 23:36:38,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1547595128] [2024-11-13 23:36:38,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:36:38,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:36:38,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:36:38,263 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:36:38,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-13 23:36:38,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:36:38,326 INFO L255 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-13 23:36:38,328 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:36:41,980 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 23:36:41,980 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:36:44,024 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:36:44,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664235359] [2024-11-13 23:36:44,024 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 23:36:44,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1547595128] [2024-11-13 23:36:44,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1547595128] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:36:44,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [190155063] [2024-11-13 23:36:44,025 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2024-11-13 23:36:44,025 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:36:44,025 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:36:44,025 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:36:44,025 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:36:45,079 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 34 for LOIs [2024-11-13 23:36:45,084 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-13 23:36:45,085 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:37:00,530 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '38323#(and (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (exists ((|v_ULTIMATE.start_main_~p~0#1_109| Int) (|v_ULTIMATE.start_main_~b~0#1_182| Int) (|v_ULTIMATE.start_main_~a~0#1_195| Int)) (and (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~a~0#1_195| |v_ULTIMATE.start_main_~b~0#1_182| |v_ULTIMATE.start_main_~p~0#1_109|)) (<= (* |v_ULTIMATE.start_main_~a~0#1_195| |v_ULTIMATE.start_main_~b~0#1_182|) 9223372036854775807) (<= 0 (+ 9223372036854775808 (* |v_ULTIMATE.start_main_~a~0#1_195| |v_ULTIMATE.start_main_~b~0#1_182|))))) (<= |ULTIMATE.start_main_~x~0#1| 100) (<= |ULTIMATE.start_main_~y~0#1| 100))' at error location [2024-11-13 23:37:00,530 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:37:00,530 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 23:37:00,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-13 23:37:00,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715078778] [2024-11-13 23:37:00,530 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 23:37:00,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-13 23:37:00,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:37:00,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-13 23:37:00,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=287, Invalid=2163, Unknown=0, NotChecked=0, Total=2450 [2024-11-13 23:37:00,532 INFO L87 Difference]: Start difference. First operand 702 states and 883 transitions. Second operand has 16 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 14 states have internal predecessors, (46), 3 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-13 23:37:04,893 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] [2024-11-13 23:37:06,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:37:06,614 INFO L93 Difference]: Finished difference Result 770 states and 962 transitions. [2024-11-13 23:37:06,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-13 23:37:06,615 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 14 states have internal predecessors, (46), 3 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 58 [2024-11-13 23:37:06,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:37:06,619 INFO L225 Difference]: With dead ends: 770 [2024-11-13 23:37:06,619 INFO L226 Difference]: Without dead ends: 769 [2024-11-13 23:37:06,620 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 76 SyntacticMatches, 6 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1064 ImplicationChecksByTransitivity, 19.8s TimeCoverageRelationStatistics Valid=350, Invalid=2730, Unknown=0, NotChecked=0, Total=3080 [2024-11-13 23:37:06,620 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 145 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 1172 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 1182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1172 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2024-11-13 23:37:06,620 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 213 Invalid, 1182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1172 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2024-11-13 23:37:06,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769 states. [2024-11-13 23:37:06,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 769 to 746. [2024-11-13 23:37:06,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 746 states, 691 states have (on average 1.2749638205499276) internal successors, (881), 715 states have internal predecessors, (881), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-13 23:37:06,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 937 transitions. [2024-11-13 23:37:06,689 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 937 transitions. Word has length 58 [2024-11-13 23:37:06,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:37:06,690 INFO L471 AbstractCegarLoop]: Abstraction has 746 states and 937 transitions. [2024-11-13 23:37:06,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 14 states have internal predecessors, (46), 3 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-13 23:37:06,690 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 937 transitions. [2024-11-13 23:37:06,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-13 23:37:06,690 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:37:06,690 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2024-11-13 23:37:06,706 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-13 23:37:06,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-13 23:37:06,891 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 23:37:06,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:37:06,891 INFO L85 PathProgramCache]: Analyzing trace with hash 341877568, now seen corresponding path program 1 times [2024-11-13 23:37:06,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:37:06,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15400057] [2024-11-13 23:37:06,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:37:06,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:37:06,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 23:37:06,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [617141351] [2024-11-13 23:37:06,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:37:06,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:37:06,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:37:06,919 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:37:06,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-13 23:37:06,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:37:06,979 INFO L255 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-13 23:37:06,981 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:37:07,225 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-13 23:37:07,226 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:37:07,526 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:37:07,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15400057] [2024-11-13 23:37:07,526 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 23:37:07,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [617141351] [2024-11-13 23:37:07,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [617141351] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:37:07,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [49094851] [2024-11-13 23:37:07,528 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2024-11-13 23:37:07,528 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:37:07,528 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:37:07,529 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:37:07,529 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:37:08,773 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 34 for LOIs [2024-11-13 23:37:08,782 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-13 23:37:08,783 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:37:30,003 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '40236#(exists ((|v_ULTIMATE.start_main_~a~0#1_205| Int) (|v_ULTIMATE.start_main_~p~0#1_115| Int) (|v_ULTIMATE.start_main_~b~0#1_188| Int) (|v_ULTIMATE.start_main_~q~0#1_102| Int)) (and (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= (* |v_ULTIMATE.start_main_~a~0#1_205| |v_ULTIMATE.start_main_~b~0#1_188|) 9223372036854775807) (<= |ULTIMATE.start_main_~x~0#1| 100) (<= (+ 9223372036854775809 |v_ULTIMATE.start_main_~q~0#1_102| (* |v_ULTIMATE.start_main_~a~0#1_205| |v_ULTIMATE.start_main_~b~0#1_188| |v_ULTIMATE.start_main_~p~0#1_115|)) 0) (<= 0 (+ 9223372036854775808 (* |v_ULTIMATE.start_main_~a~0#1_205| |v_ULTIMATE.start_main_~b~0#1_188| |v_ULTIMATE.start_main_~p~0#1_115|))) (<= 0 (+ 9223372036854775808 (* |v_ULTIMATE.start_main_~a~0#1_205| |v_ULTIMATE.start_main_~b~0#1_188|))) (<= |ULTIMATE.start_main_~y~0#1| 100) (<= (* |v_ULTIMATE.start_main_~a~0#1_205| |v_ULTIMATE.start_main_~b~0#1_188| |v_ULTIMATE.start_main_~p~0#1_115|) 9223372036854775807)))' at error location [2024-11-13 23:37:30,004 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:37:30,004 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 23:37:30,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-13 23:37:30,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422839652] [2024-11-13 23:37:30,004 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 23:37:30,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 23:37:30,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:37:30,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 23:37:30,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=223, Invalid=1253, Unknown=6, NotChecked=0, Total=1482 [2024-11-13 23:37:30,005 INFO L87 Difference]: Start difference. First operand 746 states and 937 transitions. Second operand has 7 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-13 23:37:32,829 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 [] [2024-11-13 23:37:33,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:37:33,378 INFO L93 Difference]: Finished difference Result 815 states and 1018 transitions. [2024-11-13 23:37:33,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 23:37:33,379 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 59 [2024-11-13 23:37:33,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:37:33,381 INFO L225 Difference]: With dead ends: 815 [2024-11-13 23:37:33,381 INFO L226 Difference]: Without dead ends: 814 [2024-11-13 23:37:33,381 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 91 SyntacticMatches, 4 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 676 ImplicationChecksByTransitivity, 21.6s TimeCoverageRelationStatistics Valid=261, Invalid=1625, Unknown=6, NotChecked=0, Total=1892 [2024-11-13 23:37:33,381 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 175 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:37:33,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 196 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 453 Invalid, 1 Unknown, 0 Unchecked, 3.1s Time] [2024-11-13 23:37:33,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2024-11-13 23:37:33,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 764. [2024-11-13 23:37:33,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 764 states, 708 states have (on average 1.2740112994350283) internal successors, (902), 732 states have internal predecessors, (902), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-13 23:37:33,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 764 states to 764 states and 960 transitions. [2024-11-13 23:37:33,441 INFO L78 Accepts]: Start accepts. Automaton has 764 states and 960 transitions. Word has length 59 [2024-11-13 23:37:33,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:37:33,441 INFO L471 AbstractCegarLoop]: Abstraction has 764 states and 960 transitions. [2024-11-13 23:37:33,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-13 23:37:33,441 INFO L276 IsEmpty]: Start isEmpty. Operand 764 states and 960 transitions. [2024-11-13 23:37:33,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-13 23:37:33,442 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:37:33,442 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 23:37:33,463 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-11-13 23:37:33,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-13 23:37:33,643 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 23:37:33,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:37:33,643 INFO L85 PathProgramCache]: Analyzing trace with hash 229344095, now seen corresponding path program 1 times [2024-11-13 23:37:33,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:37:33,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146018840] [2024-11-13 23:37:33,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:37:33,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:37:33,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 23:37:33,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [487585718] [2024-11-13 23:37:33,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:37:33,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:37:33,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:37:33,661 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:37:33,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-13 23:37:33,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:37:33,724 INFO L255 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-13 23:37:33,726 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:37:41,966 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 23:37:41,966 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:37:45,283 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:37:45,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146018840] [2024-11-13 23:37:45,283 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 23:37:45,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [487585718] [2024-11-13 23:37:45,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [487585718] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:37:45,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1565445845] [2024-11-13 23:37:45,284 INFO L159 IcfgInterpreter]: Started Sifa with 37 locations of interest [2024-11-13 23:37:45,284 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:37:45,284 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:37:45,284 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:37:45,284 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:37:46,372 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 34 for LOIs [2024-11-13 23:37:46,377 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-13 23:37:46,378 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:38:05,173 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '42228#(and (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 100) (<= |ULTIMATE.start_main_~y~0#1| 100) (exists ((|v_ULTIMATE.start_main_~a~0#1_213| Int) (|v_ULTIMATE.start_main_~p~0#1_123| Int) (|v_ULTIMATE.start_main_~b~0#1_201| Int)) (and (<= 0 (+ (* |v_ULTIMATE.start_main_~a~0#1_213| |v_ULTIMATE.start_main_~b~0#1_201|) 9223372036854775808)) (<= (* |v_ULTIMATE.start_main_~a~0#1_213| |v_ULTIMATE.start_main_~b~0#1_201|) 9223372036854775807) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~a~0#1_213| |v_ULTIMATE.start_main_~b~0#1_201| |v_ULTIMATE.start_main_~p~0#1_123|)))))' at error location [2024-11-13 23:38:05,173 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:38:05,173 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 23:38:05,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2024-11-13 23:38:05,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210802096] [2024-11-13 23:38:05,174 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 23:38:05,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-13 23:38:05,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:38:05,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-13 23:38:05,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=336, Invalid=2313, Unknown=3, NotChecked=0, Total=2652 [2024-11-13 23:38:05,176 INFO L87 Difference]: Start difference. First operand 764 states and 960 transitions. Second operand has 17 states, 14 states have (on average 3.357142857142857) internal successors, (47), 14 states have internal predecessors, (47), 5 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-13 23:38:08,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 23:38:10,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 23:38:12,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 23:38:15,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 23:38:20,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 23:38:23,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 23:38:25,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 23:38:27,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 23:38:29,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 23:38:35,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 23:38:37,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 23:38:40,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 23:38:43,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 23:38:47,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 23:38:50,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 23:38:52,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 23:38:54,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 23:38:56,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 23:38:57,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 23:38:59,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 23:39:01,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 23:39:04,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 23:39:05,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 23:39:08,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 23:39:10,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 23:39:12,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 23:39:13,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 23:39:15,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 23:39:17,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:39:17,371 INFO L93 Difference]: Finished difference Result 824 states and 1029 transitions. [2024-11-13 23:39:17,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-13 23:39:17,372 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 3.357142857142857) internal successors, (47), 14 states have internal predecessors, (47), 5 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Word has length 59 [2024-11-13 23:39:17,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:39:17,374 INFO L225 Difference]: With dead ends: 824 [2024-11-13 23:39:17,374 INFO L226 Difference]: Without dead ends: 823 [2024-11-13 23:39:17,376 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 78 SyntacticMatches, 5 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1221 ImplicationChecksByTransitivity, 35.1s TimeCoverageRelationStatistics Valid=437, Invalid=3217, Unknown=6, NotChecked=0, Total=3660 [2024-11-13 23:39:17,376 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 254 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 1869 mSolverCounterSat, 14 mSolverCounterUnsat, 34 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 65.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 1917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1869 IncrementalHoareTripleChecker+Invalid, 34 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 65.4s IncrementalHoareTripleChecker+Time [2024-11-13 23:39:17,377 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 261 Invalid, 1917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1869 Invalid, 34 Unknown, 0 Unchecked, 65.4s Time] [2024-11-13 23:39:17,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 823 states. [2024-11-13 23:39:17,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 823 to 791. [2024-11-13 23:39:17,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 791 states, 734 states have (on average 1.2752043596730245) internal successors, (936), 758 states have internal predecessors, (936), 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) [2024-11-13 23:39:17,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 996 transitions. [2024-11-13 23:39:17,438 INFO L78 Accepts]: Start accepts. Automaton has 791 states and 996 transitions. Word has length 59 [2024-11-13 23:39:17,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:39:17,438 INFO L471 AbstractCegarLoop]: Abstraction has 791 states and 996 transitions. [2024-11-13 23:39:17,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 3.357142857142857) internal successors, (47), 14 states have internal predecessors, (47), 5 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-13 23:39:17,439 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states and 996 transitions. [2024-11-13 23:39:17,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-13 23:39:17,439 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:39:17,439 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2024-11-13 23:39:17,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-11-13 23:39:17,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:39:17,640 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 23:39:17,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:39:17,640 INFO L85 PathProgramCache]: Analyzing trace with hash 749194778, now seen corresponding path program 2 times [2024-11-13 23:39:17,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:39:17,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715222557] [2024-11-13 23:39:17,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:39:17,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:39:17,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 23:39:17,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [467111648] [2024-11-13 23:39:17,662 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 23:39:17,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:39:17,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:39:17,667 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:39:17,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-13 23:39:17,723 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-13 23:39:17,723 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 23:39:17,724 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-13 23:39:17,725 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:39:19,444 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-13 23:39:19,444 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:39:22,999 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:39:22,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715222557] [2024-11-13 23:39:22,999 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 23:39:22,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [467111648] [2024-11-13 23:39:22,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [467111648] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:39:22,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [977281952] [2024-11-13 23:39:23,000 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2024-11-13 23:39:23,000 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:39:23,000 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:39:23,000 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:39:23,000 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:39:23,982 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 34 for LOIs [2024-11-13 23:39:23,987 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-13 23:39:23,989 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:39:38,026 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '44268#(exists ((|v_ULTIMATE.start_main_~q~0#1_118| Int) (|v_ULTIMATE.start_main_~p~0#1_130| Int) (|v_ULTIMATE.start_main_~a~0#1_226| Int) (|v_ULTIMATE.start_main_~b~0#1_208| Int)) (and (<= 1 |#StackHeapBarrier|) (<= (+ (* |v_ULTIMATE.start_main_~a~0#1_226| |v_ULTIMATE.start_main_~b~0#1_208| |v_ULTIMATE.start_main_~p~0#1_130|) 9223372036854775809 |v_ULTIMATE.start_main_~q~0#1_118|) 0) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= (* |v_ULTIMATE.start_main_~a~0#1_226| |v_ULTIMATE.start_main_~b~0#1_208| |v_ULTIMATE.start_main_~p~0#1_130|) 9223372036854775807) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= (* |v_ULTIMATE.start_main_~a~0#1_226| |v_ULTIMATE.start_main_~b~0#1_208|) 9223372036854775807) (<= 0 (+ (* |v_ULTIMATE.start_main_~a~0#1_226| |v_ULTIMATE.start_main_~b~0#1_208| |v_ULTIMATE.start_main_~p~0#1_130|) 9223372036854775808)) (<= |ULTIMATE.start_main_~x~0#1| 100) (<= 0 (+ 9223372036854775808 (* |v_ULTIMATE.start_main_~a~0#1_226| |v_ULTIMATE.start_main_~b~0#1_208|))) (<= |ULTIMATE.start_main_~y~0#1| 100)))' at error location [2024-11-13 23:39:38,026 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:39:38,026 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 23:39:38,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-13 23:39:38,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424433212] [2024-11-13 23:39:38,026 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 23:39:38,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 23:39:38,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:39:38,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 23:39:38,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=367, Invalid=1985, Unknown=0, NotChecked=0, Total=2352 [2024-11-13 23:39:38,028 INFO L87 Difference]: Start difference. First operand 791 states and 996 transitions. Second operand has 12 states, 9 states have (on average 4.333333333333333) internal successors, (39), 10 states have internal predecessors, (39), 3 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-13 23:39:40,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 23:39:43,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 23:39:45,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 23:39:47,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 23:39:50,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 23:39:52,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 23:39:54,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 23:39:56,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 23:39:56,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:39:56,867 INFO L93 Difference]: Finished difference Result 863 states and 1081 transitions. [2024-11-13 23:39:56,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 23:39:56,867 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 4.333333333333333) internal successors, (39), 10 states have internal predecessors, (39), 3 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 59 [2024-11-13 23:39:56,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:39:56,870 INFO L225 Difference]: With dead ends: 863 [2024-11-13 23:39:56,870 INFO L226 Difference]: Without dead ends: 862 [2024-11-13 23:39:56,871 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 81 SyntacticMatches, 5 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1121 ImplicationChecksByTransitivity, 19.1s TimeCoverageRelationStatistics Valid=438, Invalid=2424, Unknown=0, NotChecked=0, Total=2862 [2024-11-13 23:39:56,871 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 281 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 12 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.3s IncrementalHoareTripleChecker+Time [2024-11-13 23:39:56,871 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 174 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 521 Invalid, 5 Unknown, 0 Unchecked, 17.3s Time] [2024-11-13 23:39:56,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 862 states. [2024-11-13 23:39:56,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 862 to 803. [2024-11-13 23:39:56,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 803 states, 746 states have (on average 1.272117962466488) internal successors, (949), 770 states have internal predecessors, (949), 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) [2024-11-13 23:39:56,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1009 transitions. [2024-11-13 23:39:56,957 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1009 transitions. Word has length 59 [2024-11-13 23:39:56,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:39:56,958 INFO L471 AbstractCegarLoop]: Abstraction has 803 states and 1009 transitions. [2024-11-13 23:39:56,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 4.333333333333333) internal successors, (39), 10 states have internal predecessors, (39), 3 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-13 23:39:56,958 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1009 transitions. [2024-11-13 23:39:56,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-13 23:39:56,958 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:39:56,958 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2024-11-13 23:39:56,976 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-11-13 23:39:57,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2024-11-13 23:39:57,159 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 23:39:57,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:39:57,159 INFO L85 PathProgramCache]: Analyzing trace with hash -369640712, now seen corresponding path program 1 times [2024-11-13 23:39:57,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:39:57,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944086775] [2024-11-13 23:39:57,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:39:57,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:39:57,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 23:39:57,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [347336243] [2024-11-13 23:39:57,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:39:57,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:39:57,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:39:57,180 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:39:57,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-13 23:39:57,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:39:57,246 INFO L255 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-13 23:39:57,248 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:39:57,583 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-13 23:39:57,584 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:39:57,823 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-13 23:39:57,823 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:39:57,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944086775] [2024-11-13 23:39:57,824 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 23:39:57,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [347336243] [2024-11-13 23:39:57,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [347336243] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:39:57,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [525177627] [2024-11-13 23:39:57,825 INFO L159 IcfgInterpreter]: Started Sifa with 37 locations of interest [2024-11-13 23:39:57,825 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:39:57,825 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:39:57,825 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:39:57,825 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:39:58,886 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 34 for LOIs [2024-11-13 23:39:58,891 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-13 23:39:58,892 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:40:08,868 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '46480#(exists ((|v_ULTIMATE.start_main_~a~0#1_233| Int) (|v_ULTIMATE.start_main_~b~0#1_220| Int) (|v_ULTIMATE.start_main_~p~0#1_137| Int) (|v_ULTIMATE.start_main_~q~0#1_126| Int)) (and (<= 0 (+ 9223372036854775808 (* |v_ULTIMATE.start_main_~a~0#1_233| |v_ULTIMATE.start_main_~b~0#1_220|))) (<= (* |v_ULTIMATE.start_main_~a~0#1_233| |v_ULTIMATE.start_main_~b~0#1_220| |v_ULTIMATE.start_main_~p~0#1_137|) 9223372036854775807) (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= (* |v_ULTIMATE.start_main_~a~0#1_233| |v_ULTIMATE.start_main_~b~0#1_220|) 9223372036854775807) (<= (+ 9223372036854775809 |v_ULTIMATE.start_main_~q~0#1_126| (* |v_ULTIMATE.start_main_~a~0#1_233| |v_ULTIMATE.start_main_~b~0#1_220| |v_ULTIMATE.start_main_~p~0#1_137|)) 0) (<= |ULTIMATE.start_main_~x~0#1| 100) (<= 0 (+ 9223372036854775808 (* |v_ULTIMATE.start_main_~a~0#1_233| |v_ULTIMATE.start_main_~b~0#1_220| |v_ULTIMATE.start_main_~p~0#1_137|))) (<= |ULTIMATE.start_main_~y~0#1| 100)))' at error location [2024-11-13 23:40:08,869 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:40:08,869 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 23:40:08,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2024-11-13 23:40:08,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117176571] [2024-11-13 23:40:08,869 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 23:40:08,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 23:40:08,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:40:08,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 23:40:08,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=265, Invalid=1375, Unknown=0, NotChecked=0, Total=1640 [2024-11-13 23:40:08,870 INFO L87 Difference]: Start difference. First operand 803 states and 1009 transitions. Second operand has 10 states, 8 states have (on average 8.625) internal successors, (69), 10 states have internal predecessors, (69), 6 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) [2024-11-13 23:40:11,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:40:11,874 INFO L93 Difference]: Finished difference Result 1032 states and 1301 transitions. [2024-11-13 23:40:11,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 23:40:11,875 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 8.625) internal successors, (69), 10 states have internal predecessors, (69), 6 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) Word has length 60 [2024-11-13 23:40:11,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:40:11,879 INFO L225 Difference]: With dead ends: 1032 [2024-11-13 23:40:11,879 INFO L226 Difference]: Without dead ends: 1030 [2024-11-13 23:40:11,880 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 134 SyntacticMatches, 5 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 889 ImplicationChecksByTransitivity, 10.5s TimeCoverageRelationStatistics Valid=337, Invalid=1919, Unknown=0, NotChecked=0, Total=2256 [2024-11-13 23:40:11,880 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 278 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-13 23:40:11,880 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 145 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-13 23:40:11,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2024-11-13 23:40:12,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 871. [2024-11-13 23:40:12,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 871 states, 810 states have (on average 1.2679012345679013) internal successors, (1027), 834 states have internal predecessors, (1027), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-13 23:40:12,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 871 states and 1095 transitions. [2024-11-13 23:40:12,003 INFO L78 Accepts]: Start accepts. Automaton has 871 states and 1095 transitions. Word has length 60 [2024-11-13 23:40:12,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:40:12,004 INFO L471 AbstractCegarLoop]: Abstraction has 871 states and 1095 transitions. [2024-11-13 23:40:12,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 8.625) internal successors, (69), 10 states have internal predecessors, (69), 6 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) [2024-11-13 23:40:12,004 INFO L276 IsEmpty]: Start isEmpty. Operand 871 states and 1095 transitions. [2024-11-13 23:40:12,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-13 23:40:12,005 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:40:12,005 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2024-11-13 23:40:12,020 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-11-13 23:40:12,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2024-11-13 23:40:12,205 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-13 23:40:12,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:40:12,206 INFO L85 PathProgramCache]: Analyzing trace with hash 2008270073, now seen corresponding path program 1 times [2024-11-13 23:40:12,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:40:12,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934934389] [2024-11-13 23:40:12,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:40:12,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:40:12,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 23:40:12,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [521901733] [2024-11-13 23:40:12,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:40:12,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:40:12,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:40:12,228 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:40:12,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef94600-278a-42cc-a5cd-9054b1988d66/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-13 23:40:12,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:40:12,296 INFO L255 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-13 23:40:12,298 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:40:14,124 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-13 23:40:14,124 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:41:33,549 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 1 proven. 26 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-13 23:41:33,549 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:41:33,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934934389] [2024-11-13 23:41:33,549 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 23:41:33,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [521901733] [2024-11-13 23:41:33,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [521901733] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:41:33,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1945683076] [2024-11-13 23:41:33,550 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2024-11-13 23:41:33,550 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:41:33,550 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:41:33,551 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:41:33,551 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:41:34,496 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 34 for LOIs [2024-11-13 23:41:34,502 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-13 23:41:34,503 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:42:20,391 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '48963#(exists ((|v_ULTIMATE.start_main_~b~0#1_232| Int) (|v_ULTIMATE.start_main_~p~0#1_149| Int) (|v_ULTIMATE.start_main_~a~0#1_251| Int) (|v_ULTIMATE.start_main_~q~0#1_138| Int)) (and (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= 9223372036854775808 (+ |v_ULTIMATE.start_main_~q~0#1_138| (* |v_ULTIMATE.start_main_~a~0#1_251| |v_ULTIMATE.start_main_~b~0#1_232| |v_ULTIMATE.start_main_~p~0#1_149|))) (<= |ULTIMATE.start_main_~x~0#1| 100) (<= (* |v_ULTIMATE.start_main_~a~0#1_251| |v_ULTIMATE.start_main_~b~0#1_232| |v_ULTIMATE.start_main_~p~0#1_149|) 9223372036854775807) (<= (* |v_ULTIMATE.start_main_~a~0#1_251| |v_ULTIMATE.start_main_~b~0#1_232|) 9223372036854775807) (<= 0 (+ (* |v_ULTIMATE.start_main_~a~0#1_251| |v_ULTIMATE.start_main_~b~0#1_232|) 9223372036854775808)) (<= 0 (+ 9223372036854775808 (* |v_ULTIMATE.start_main_~a~0#1_251| |v_ULTIMATE.start_main_~b~0#1_232| |v_ULTIMATE.start_main_~p~0#1_149|))) (<= |ULTIMATE.start_main_~y~0#1| 100)))' at error location [2024-11-13 23:42:20,391 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:42:20,392 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 23:42:20,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2024-11-13 23:42:20,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62409041] [2024-11-13 23:42:20,392 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 23:42:20,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-13 23:42:20,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:42:20,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-13 23:42:20,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=420, Invalid=2550, Unknown=0, NotChecked=0, Total=2970 [2024-11-13 23:42:20,393 INFO L87 Difference]: Start difference. First operand 871 states and 1095 transitions. Second operand has 25 states, 23 states have (on average 3.9565217391304346) internal successors, (91), 25 states have internal predecessors, (91), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-11-13 23:44:32,837 WARN L286 SmtUtils]: Spent 2.16m on a formula simplification. DAG size of input: 151 DAG size of output: 133 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)