./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound20.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_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/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_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/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_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/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 20f9ce6814caacb533e5bf2143ac3e067387f11238548a0b9b41e2de8e2cc436 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:25:08,029 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:25:08,161 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-14 04:25:08,173 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:25:08,173 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:25:08,222 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:25:08,222 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:25:08,224 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:25:08,225 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:25:08,225 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:25:08,227 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:25:08,227 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:25:08,227 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:25:08,227 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 04:25:08,227 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:25:08,229 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:25:08,229 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 04:25:08,229 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 04:25:08,230 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:25:08,230 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 04:25:08,230 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 04:25:08,230 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 04:25:08,231 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:25:08,231 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:25:08,231 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 04:25:08,232 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:25:08,232 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 04:25:08,232 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:25:08,233 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:25:08,233 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:25:08,233 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:25:08,233 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:25:08,234 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 04:25:08,234 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 04:25:08,234 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 04:25:08,234 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:25:08,234 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:25:08,234 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:25:08,236 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:25:08,236 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:25:08,236 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:25:08,237 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:25:08,237 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:25:08,237 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:25:08,237 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 04:25:08,237 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 04:25:08,237 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:25:08,237 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:25:08,238 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 04:25:08,238 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_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/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 -> 20f9ce6814caacb533e5bf2143ac3e067387f11238548a0b9b41e2de8e2cc436 [2024-11-14 04:25:08,665 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:25:08,682 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:25:08,686 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:25:08,688 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:25:08,688 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:25:08,690 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound20.c Unable to find full path for "g++" [2024-11-14 04:25:11,132 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:25:11,654 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:25:11,655 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound20.c [2024-11-14 04:25:11,689 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/data/6d52ae045/edf57759d3d746d39348890982e304cd/FLAG246726e34 [2024-11-14 04:25:11,715 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/data/6d52ae045/edf57759d3d746d39348890982e304cd [2024-11-14 04:25:11,718 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:25:11,721 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:25:11,724 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:25:11,724 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:25:11,730 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:25:11,732 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:25:11" (1/1) ... [2024-11-14 04:25:11,733 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cdf3bdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:25:11, skipping insertion in model container [2024-11-14 04:25:11,736 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:25:11" (1/1) ... [2024-11-14 04:25:11,758 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:25:12,030 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:25:12,052 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:25:12,095 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:25:12,119 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:25:12,120 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:25:12 WrapperNode [2024-11-14 04:25:12,122 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:25:12,123 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:25:12,123 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:25:12,124 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:25:12,137 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:25:12" (1/1) ... [2024-11-14 04:25:12,147 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:25:12" (1/1) ... [2024-11-14 04:25:12,187 INFO L138 Inliner]: procedures = 14, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 118 [2024-11-14 04:25:12,190 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:25:12,191 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:25:12,191 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:25:12,191 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:25:12,203 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:25:12" (1/1) ... [2024-11-14 04:25:12,204 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:25:12" (1/1) ... [2024-11-14 04:25:12,208 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:25:12" (1/1) ... [2024-11-14 04:25:12,212 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:25:12" (1/1) ... [2024-11-14 04:25:12,219 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:25:12" (1/1) ... [2024-11-14 04:25:12,228 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:25:12" (1/1) ... [2024-11-14 04:25:12,233 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:25:12" (1/1) ... [2024-11-14 04:25:12,234 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:25:12" (1/1) ... [2024-11-14 04:25:12,241 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:25:12,242 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:25:12,242 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:25:12,242 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:25:12,248 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:25:12" (1/1) ... [2024-11-14 04:25:12,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:25:12,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:25:12,292 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:25:12,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:25:12,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:25:12,334 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 04:25:12,334 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 04:25:12,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 04:25:12,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:25:12,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:25:12,335 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-14 04:25:12,335 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-14 04:25:12,439 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:25:12,443 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:25:13,628 INFO L? ?]: Removed 157 outVars from TransFormulas that were not future-live. [2024-11-14 04:25:13,629 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:25:13,706 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:25:13,706 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 04:25:13,706 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:25:13 BoogieIcfgContainer [2024-11-14 04:25:13,707 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:25:13,710 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:25:13,710 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:25:13,715 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:25:13,716 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:25:11" (1/3) ... [2024-11-14 04:25:13,717 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5522eaf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:25:13, skipping insertion in model container [2024-11-14 04:25:13,717 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:25:12" (2/3) ... [2024-11-14 04:25:13,717 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5522eaf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:25:13, skipping insertion in model container [2024-11-14 04:25:13,718 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:25:13" (3/3) ... [2024-11-14 04:25:13,719 INFO L112 eAbstractionObserver]: Analyzing ICFG egcd-ll_valuebound20.c [2024-11-14 04:25:13,739 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:25:13,741 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG egcd-ll_valuebound20.c that has 3 procedures, 135 locations, 1 initial locations, 1 loop locations, and 56 error locations. [2024-11-14 04:25:13,839 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:25:13,856 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;@61927a82, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:25:13,856 INFO L334 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2024-11-14 04:25:13,862 INFO L276 IsEmpty]: Start isEmpty. Operand has 135 states, 65 states have (on average 1.9076923076923078) internal successors, (124), 121 states have internal predecessors, (124), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-14 04:25:13,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-14 04:25:13,871 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:25:13,872 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:25:13,873 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 04:25:13,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:25:13,879 INFO L85 PathProgramCache]: Analyzing trace with hash -740955412, now seen corresponding path program 1 times [2024-11-14 04:25:13,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:25:13,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626812774] [2024-11-14 04:25:13,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:25:13,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:25:14,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:25:14,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1946347246] [2024-11-14 04:25:14,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:25:14,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:25:14,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:25:14,036 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:25:14,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 04:25:14,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:25:14,141 INFO L255 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 04:25:14,149 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:25:14,272 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 04:25:14,272 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:25:14,273 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:25:14,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626812774] [2024-11-14 04:25:14,274 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:25:14,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1946347246] [2024-11-14 04:25:14,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1946347246] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:25:14,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:25:14,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:25:14,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380024078] [2024-11-14 04:25:14,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:25:14,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:25:14,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:25:14,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:25:14,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:25:14,329 INFO L87 Difference]: Start difference. First operand has 135 states, 65 states have (on average 1.9076923076923078) internal successors, (124), 121 states have internal predecessors, (124), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-14 04:25:15,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:25:15,135 INFO L93 Difference]: Finished difference Result 280 states and 337 transitions. [2024-11-14 04:25:15,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:25:15,140 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 17 [2024-11-14 04:25:15,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:25:15,157 INFO L225 Difference]: With dead ends: 280 [2024-11-14 04:25:15,157 INFO L226 Difference]: Without dead ends: 213 [2024-11-14 04:25:15,162 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:25:15,169 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 74 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 04:25:15,172 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 137 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 04:25:15,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2024-11-14 04:25:15,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 171. [2024-11-14 04:25:15,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 98 states have (on average 1.8775510204081634) internal successors, (184), 153 states have internal predecessors, (184), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-14 04:25:15,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 214 transitions. [2024-11-14 04:25:15,288 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 214 transitions. Word has length 17 [2024-11-14 04:25:15,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:25:15,289 INFO L471 AbstractCegarLoop]: Abstraction has 171 states and 214 transitions. [2024-11-14 04:25:15,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-14 04:25:15,289 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 214 transitions. [2024-11-14 04:25:15,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-14 04:25:15,293 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:25:15,293 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:25:15,322 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 04:25:15,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-14 04:25:15,495 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 04:25:15,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:25:15,496 INFO L85 PathProgramCache]: Analyzing trace with hash 906421806, now seen corresponding path program 1 times [2024-11-14 04:25:15,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:25:15,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104307063] [2024-11-14 04:25:15,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:25:15,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:25:15,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:25:15,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1273059614] [2024-11-14 04:25:15,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:25:15,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:25:15,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:25:15,555 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:25:15,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 04:25:15,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:25:15,650 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 04:25:15,652 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:25:15,685 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 04:25:15,686 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:25:15,687 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:25:15,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104307063] [2024-11-14 04:25:15,687 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:25:15,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1273059614] [2024-11-14 04:25:15,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1273059614] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:25:15,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:25:15,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:25:15,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762688147] [2024-11-14 04:25:15,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:25:15,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:25:15,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:25:15,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:25:15,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:25:15,694 INFO L87 Difference]: Start difference. First operand 171 states and 214 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-14 04:25:16,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:25:16,453 INFO L93 Difference]: Finished difference Result 272 states and 338 transitions. [2024-11-14 04:25:16,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:25:16,457 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 19 [2024-11-14 04:25:16,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:25:16,460 INFO L225 Difference]: With dead ends: 272 [2024-11-14 04:25:16,460 INFO L226 Difference]: Without dead ends: 264 [2024-11-14 04:25:16,463 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:25:16,464 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 84 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 04:25:16,464 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 191 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 04:25:16,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2024-11-14 04:25:16,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 224. [2024-11-14 04:25:16,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 145 states have (on average 1.813793103448276) internal successors, (263), 200 states have internal predecessors, (263), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-14 04:25:16,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 305 transitions. [2024-11-14 04:25:16,499 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 305 transitions. Word has length 19 [2024-11-14 04:25:16,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:25:16,500 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 305 transitions. [2024-11-14 04:25:16,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-14 04:25:16,501 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 305 transitions. [2024-11-14 04:25:16,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-14 04:25:16,501 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:25:16,502 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:25:16,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-14 04:25:16,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:25:16,706 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 04:25:16,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:25:16,707 INFO L85 PathProgramCache]: Analyzing trace with hash -807003792, now seen corresponding path program 1 times [2024-11-14 04:25:16,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:25:16,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287427433] [2024-11-14 04:25:16,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:25:16,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:25:16,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:25:16,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [169708402] [2024-11-14 04:25:16,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:25:16,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:25:16,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:25:16,742 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:25:16,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 04:25:16,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:25:16,835 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 04:25:16,837 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:25:16,945 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 04:25:16,946 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:25:16,946 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:25:16,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287427433] [2024-11-14 04:25:16,947 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:25:16,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [169708402] [2024-11-14 04:25:16,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [169708402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:25:16,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:25:16,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:25:16,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340920500] [2024-11-14 04:25:16,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:25:16,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:25:16,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:25:16,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:25:16,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:25:16,952 INFO L87 Difference]: Start difference. First operand 224 states and 305 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-14 04:25:17,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:25:17,829 INFO L93 Difference]: Finished difference Result 258 states and 324 transitions. [2024-11-14 04:25:17,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:25:17,830 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 21 [2024-11-14 04:25:17,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:25:17,833 INFO L225 Difference]: With dead ends: 258 [2024-11-14 04:25:17,835 INFO L226 Difference]: Without dead ends: 244 [2024-11-14 04:25:17,836 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:25:17,837 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 61 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 04:25:17,837 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 119 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 04:25:17,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2024-11-14 04:25:17,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 189. [2024-11-14 04:25:17,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 115 states have (on average 1.7391304347826086) internal successors, (200), 170 states have internal predecessors, (200), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-14 04:25:17,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 232 transitions. [2024-11-14 04:25:17,855 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 232 transitions. Word has length 21 [2024-11-14 04:25:17,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:25:17,856 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 232 transitions. [2024-11-14 04:25:17,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-14 04:25:17,856 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 232 transitions. [2024-11-14 04:25:17,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-14 04:25:17,857 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:25:17,857 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:25:17,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-14 04:25:18,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:25:18,062 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 04:25:18,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:25:18,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1682603225, now seen corresponding path program 1 times [2024-11-14 04:25:18,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:25:18,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466963506] [2024-11-14 04:25:18,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:25:18,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:25:18,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:25:18,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2030585256] [2024-11-14 04:25:18,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:25:18,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:25:18,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:25:18,099 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:25:18,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 04:25:18,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:25:18,171 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 04:25:18,173 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:25:18,228 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 04:25:18,228 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:25:18,228 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:25:18,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466963506] [2024-11-14 04:25:18,229 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:25:18,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2030585256] [2024-11-14 04:25:18,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2030585256] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:25:18,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:25:18,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:25:18,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816120832] [2024-11-14 04:25:18,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:25:18,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:25:18,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:25:18,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:25:18,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:25:18,233 INFO L87 Difference]: Start difference. First operand 189 states and 232 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 04:25:18,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:25:18,655 INFO L93 Difference]: Finished difference Result 351 states and 451 transitions. [2024-11-14 04:25:18,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:25:18,655 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 26 [2024-11-14 04:25:18,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:25:18,659 INFO L225 Difference]: With dead ends: 351 [2024-11-14 04:25:18,659 INFO L226 Difference]: Without dead ends: 343 [2024-11-14 04:25:18,660 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:25:18,661 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 84 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 04:25:18,661 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 187 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 04:25:18,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2024-11-14 04:25:18,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 268. [2024-11-14 04:25:18,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 185 states have (on average 1.7081081081081082) internal successors, (316), 240 states have internal predecessors, (316), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-14 04:25:18,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 366 transitions. [2024-11-14 04:25:18,687 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 366 transitions. Word has length 26 [2024-11-14 04:25:18,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:25:18,687 INFO L471 AbstractCegarLoop]: Abstraction has 268 states and 366 transitions. [2024-11-14 04:25:18,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 04:25:18,687 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 366 transitions. [2024-11-14 04:25:18,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-14 04:25:18,688 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:25:18,688 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:25:18,714 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-14 04:25:18,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:25:18,892 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 04:25:18,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:25:18,893 INFO L85 PathProgramCache]: Analyzing trace with hash -2073993911, now seen corresponding path program 1 times [2024-11-14 04:25:18,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:25:18,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604222322] [2024-11-14 04:25:18,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:25:18,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:25:18,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:25:18,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [649065851] [2024-11-14 04:25:18,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:25:18,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:25:18,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:25:18,966 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:25:18,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 04:25:19,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:25:19,041 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 04:25:19,043 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:25:19,180 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 04:25:19,180 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:25:19,180 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:25:19,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604222322] [2024-11-14 04:25:19,181 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:25:19,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649065851] [2024-11-14 04:25:19,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [649065851] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:25:19,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:25:19,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:25:19,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481485459] [2024-11-14 04:25:19,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:25:19,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:25:19,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:25:19,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:25:19,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:25:19,183 INFO L87 Difference]: Start difference. First operand 268 states and 366 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 04:25:19,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:25:19,794 INFO L93 Difference]: Finished difference Result 321 states and 431 transitions. [2024-11-14 04:25:19,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:25:19,795 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 28 [2024-11-14 04:25:19,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:25:19,797 INFO L225 Difference]: With dead ends: 321 [2024-11-14 04:25:19,797 INFO L226 Difference]: Without dead ends: 319 [2024-11-14 04:25:19,798 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:25:19,799 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 231 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 04:25:19,800 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 130 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 04:25:19,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2024-11-14 04:25:19,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 268. [2024-11-14 04:25:19,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 185 states have (on average 1.6864864864864866) internal successors, (312), 240 states have internal predecessors, (312), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-14 04:25:19,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 362 transitions. [2024-11-14 04:25:19,825 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 362 transitions. Word has length 28 [2024-11-14 04:25:19,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:25:19,826 INFO L471 AbstractCegarLoop]: Abstraction has 268 states and 362 transitions. [2024-11-14 04:25:19,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 04:25:19,826 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 362 transitions. [2024-11-14 04:25:19,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-14 04:25:19,827 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:25:19,827 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:25:19,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-14 04:25:20,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:25:20,028 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 04:25:20,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:25:20,028 INFO L85 PathProgramCache]: Analyzing trace with hash 130698266, now seen corresponding path program 1 times [2024-11-14 04:25:20,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:25:20,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089498038] [2024-11-14 04:25:20,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:25:20,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:25:20,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:25:20,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1994265491] [2024-11-14 04:25:20,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:25:20,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:25:20,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:25:20,064 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:25:20,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-14 04:25:20,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:25:20,131 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 04:25:20,133 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:25:20,281 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 04:25:20,282 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:25:20,282 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:25:20,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089498038] [2024-11-14 04:25:20,282 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:25:20,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1994265491] [2024-11-14 04:25:20,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1994265491] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:25:20,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:25:20,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:25:20,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918598244] [2024-11-14 04:25:20,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:25:20,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:25:20,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:25:20,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:25:20,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:25:20,288 INFO L87 Difference]: Start difference. First operand 268 states and 362 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 04:25:20,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:25:20,654 INFO L93 Difference]: Finished difference Result 321 states and 427 transitions. [2024-11-14 04:25:20,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:25:20,655 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 29 [2024-11-14 04:25:20,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:25:20,657 INFO L225 Difference]: With dead ends: 321 [2024-11-14 04:25:20,657 INFO L226 Difference]: Without dead ends: 319 [2024-11-14 04:25:20,662 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:25:20,662 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 229 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 04:25:20,663 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 130 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 04:25:20,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2024-11-14 04:25:20,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 268. [2024-11-14 04:25:20,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 185 states have (on average 1.664864864864865) internal successors, (308), 240 states have internal predecessors, (308), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-14 04:25:20,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 358 transitions. [2024-11-14 04:25:20,699 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 358 transitions. Word has length 29 [2024-11-14 04:25:20,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:25:20,700 INFO L471 AbstractCegarLoop]: Abstraction has 268 states and 358 transitions. [2024-11-14 04:25:20,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 04:25:20,700 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 358 transitions. [2024-11-14 04:25:20,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-14 04:25:20,701 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:25:20,701 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:25:20,727 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-14 04:25:20,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:25:20,905 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 04:25:20,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:25:20,906 INFO L85 PathProgramCache]: Analyzing trace with hash -243320981, now seen corresponding path program 1 times [2024-11-14 04:25:20,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:25:20,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320786763] [2024-11-14 04:25:20,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:25:20,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:25:20,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:25:20,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [647458550] [2024-11-14 04:25:20,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:25:20,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:25:20,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:25:20,939 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:25:20,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-14 04:25:21,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:25:21,008 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 04:25:21,010 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:25:21,078 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 04:25:21,078 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:25:21,079 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:25:21,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320786763] [2024-11-14 04:25:21,079 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:25:21,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [647458550] [2024-11-14 04:25:21,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [647458550] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:25:21,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:25:21,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:25:21,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751561079] [2024-11-14 04:25:21,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:25:21,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:25:21,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:25:21,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:25:21,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:25:21,082 INFO L87 Difference]: Start difference. First operand 268 states and 358 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 04:25:22,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:25:22,944 INFO L93 Difference]: Finished difference Result 341 states and 431 transitions. [2024-11-14 04:25:22,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:25:22,944 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 30 [2024-11-14 04:25:22,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:25:22,947 INFO L225 Difference]: With dead ends: 341 [2024-11-14 04:25:22,948 INFO L226 Difference]: Without dead ends: 339 [2024-11-14 04:25:22,948 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:25:22,949 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 85 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-14 04:25:22,950 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 203 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-14 04:25:22,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2024-11-14 04:25:22,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 269. [2024-11-14 04:25:22,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 186 states have (on average 1.6451612903225807) internal successors, (306), 241 states have internal predecessors, (306), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-14 04:25:22,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 356 transitions. [2024-11-14 04:25:22,975 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 356 transitions. Word has length 30 [2024-11-14 04:25:22,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:25:22,975 INFO L471 AbstractCegarLoop]: Abstraction has 269 states and 356 transitions. [2024-11-14 04:25:22,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 04:25:22,976 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 356 transitions. [2024-11-14 04:25:22,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-14 04:25:22,977 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:25:22,977 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:25:23,003 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-14 04:25:23,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:25:23,183 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 04:25:23,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:25:23,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1046984252, now seen corresponding path program 1 times [2024-11-14 04:25:23,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:25:23,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281381349] [2024-11-14 04:25:23,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:25:23,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:25:23,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:25:23,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [279344699] [2024-11-14 04:25:23,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:25:23,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:25:23,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:25:23,241 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:25:23,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-14 04:25:23,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:25:23,318 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 04:25:23,320 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:25:23,633 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 04:25:23,633 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:25:23,633 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:25:23,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281381349] [2024-11-14 04:25:23,634 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:25:23,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [279344699] [2024-11-14 04:25:23,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [279344699] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:25:23,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:25:23,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:25:23,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608085255] [2024-11-14 04:25:23,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:25:23,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:25:23,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:25:23,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:25:23,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:25:23,635 INFO L87 Difference]: Start difference. First operand 269 states and 356 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 04:25:25,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:25:25,401 INFO L93 Difference]: Finished difference Result 341 states and 427 transitions. [2024-11-14 04:25:25,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:25:25,402 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 31 [2024-11-14 04:25:25,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:25:25,404 INFO L225 Difference]: With dead ends: 341 [2024-11-14 04:25:25,404 INFO L226 Difference]: Without dead ends: 339 [2024-11-14 04:25:25,405 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:25:25,406 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 85 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-14 04:25:25,406 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 206 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-14 04:25:25,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2024-11-14 04:25:25,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 270. [2024-11-14 04:25:25,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 187 states have (on average 1.625668449197861) internal successors, (304), 242 states have internal predecessors, (304), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-14 04:25:25,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 354 transitions. [2024-11-14 04:25:25,429 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 354 transitions. Word has length 31 [2024-11-14 04:25:25,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:25:25,430 INFO L471 AbstractCegarLoop]: Abstraction has 270 states and 354 transitions. [2024-11-14 04:25:25,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 04:25:25,430 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 354 transitions. [2024-11-14 04:25:25,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-14 04:25:25,431 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:25:25,432 INFO L215 NwaCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:25:25,454 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-14 04:25:25,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:25:25,633 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 04:25:25,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:25:25,633 INFO L85 PathProgramCache]: Analyzing trace with hash 597716388, now seen corresponding path program 1 times [2024-11-14 04:25:25,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:25:25,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135328812] [2024-11-14 04:25:25,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:25:25,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:25:25,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:25:25,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [440503208] [2024-11-14 04:25:25,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:25:25,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:25:25,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:25:25,669 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:25:25,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-14 04:25:25,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:25:25,745 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 04:25:25,748 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:25:25,896 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 04:25:25,896 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:25:25,896 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:25:25,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135328812] [2024-11-14 04:25:25,897 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:25:25,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440503208] [2024-11-14 04:25:25,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [440503208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:25:25,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:25:25,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:25:25,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430633269] [2024-11-14 04:25:25,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:25:25,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:25:25,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:25:25,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:25:25,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:25:25,899 INFO L87 Difference]: Start difference. First operand 270 states and 354 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-14 04:25:26,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:25:26,873 INFO L93 Difference]: Finished difference Result 292 states and 373 transitions. [2024-11-14 04:25:26,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:25:26,874 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 37 [2024-11-14 04:25:26,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:25:26,877 INFO L225 Difference]: With dead ends: 292 [2024-11-14 04:25:26,877 INFO L226 Difference]: Without dead ends: 290 [2024-11-14 04:25:26,878 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:25:26,879 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 155 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-14 04:25:26,879 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 151 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-14 04:25:26,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2024-11-14 04:25:26,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 271. [2024-11-14 04:25:26,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 188 states have (on average 1.6117021276595744) internal successors, (303), 243 states have internal predecessors, (303), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-14 04:25:26,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 353 transitions. [2024-11-14 04:25:26,907 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 353 transitions. Word has length 37 [2024-11-14 04:25:26,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:25:26,910 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 353 transitions. [2024-11-14 04:25:26,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-14 04:25:26,910 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 353 transitions. [2024-11-14 04:25:26,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-14 04:25:26,911 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:25:26,911 INFO L215 NwaCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:25:26,941 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-14 04:25:27,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:25:27,112 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 04:25:27,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:25:27,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1349338924, now seen corresponding path program 1 times [2024-11-14 04:25:27,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:25:27,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221979184] [2024-11-14 04:25:27,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:25:27,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:25:27,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:25:27,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1476379077] [2024-11-14 04:25:27,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:25:27,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:25:27,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:25:27,144 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:25:27,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-14 04:25:27,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:25:27,215 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 04:25:27,216 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:25:27,364 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 04:25:27,364 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:25:27,364 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:25:27,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221979184] [2024-11-14 04:25:27,365 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:25:27,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1476379077] [2024-11-14 04:25:27,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1476379077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:25:27,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:25:27,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:25:27,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432894220] [2024-11-14 04:25:27,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:25:27,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:25:27,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:25:27,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:25:27,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:25:27,367 INFO L87 Difference]: Start difference. First operand 271 states and 353 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-14 04:25:27,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:25:27,824 INFO L93 Difference]: Finished difference Result 292 states and 370 transitions. [2024-11-14 04:25:27,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:25:27,825 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 38 [2024-11-14 04:25:27,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:25:27,827 INFO L225 Difference]: With dead ends: 292 [2024-11-14 04:25:27,827 INFO L226 Difference]: Without dead ends: 290 [2024-11-14 04:25:27,828 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:25:27,828 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 207 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 04:25:27,829 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 140 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 04:25:27,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2024-11-14 04:25:27,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 272. [2024-11-14 04:25:27,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 189 states have (on average 1.597883597883598) internal successors, (302), 244 states have internal predecessors, (302), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-14 04:25:27,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 352 transitions. [2024-11-14 04:25:27,846 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 352 transitions. Word has length 38 [2024-11-14 04:25:27,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:25:27,846 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 352 transitions. [2024-11-14 04:25:27,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-14 04:25:27,846 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 352 transitions. [2024-11-14 04:25:27,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-14 04:25:27,847 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:25:27,847 INFO L215 NwaCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:25:27,869 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-14 04:25:28,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:25:28,048 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 04:25:28,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:25:28,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1120166234, now seen corresponding path program 1 times [2024-11-14 04:25:28,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:25:28,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171781668] [2024-11-14 04:25:28,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:25:28,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:25:28,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:25:28,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [900553516] [2024-11-14 04:25:28,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:25:28,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:25:28,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:25:28,072 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:25:28,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-14 04:25:28,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:25:28,141 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 04:25:28,143 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:25:28,210 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 04:25:28,210 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:25:28,210 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:25:28,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171781668] [2024-11-14 04:25:28,210 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:25:28,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [900553516] [2024-11-14 04:25:28,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [900553516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:25:28,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:25:28,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:25:28,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479360210] [2024-11-14 04:25:28,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:25:28,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:25:28,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:25:28,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:25:28,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:25:28,212 INFO L87 Difference]: Start difference. First operand 272 states and 352 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 04:25:29,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:25:29,625 INFO L93 Difference]: Finished difference Result 300 states and 359 transitions. [2024-11-14 04:25:29,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:25:29,626 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 39 [2024-11-14 04:25:29,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:25:29,629 INFO L225 Difference]: With dead ends: 300 [2024-11-14 04:25:29,630 INFO L226 Difference]: Without dead ends: 298 [2024-11-14 04:25:29,630 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:25:29,631 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 127 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-14 04:25:29,631 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 188 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-14 04:25:29,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2024-11-14 04:25:29,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 273. [2024-11-14 04:25:29,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 190 states have (on average 1.5842105263157895) internal successors, (301), 245 states have internal predecessors, (301), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-14 04:25:29,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 351 transitions. [2024-11-14 04:25:29,660 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 351 transitions. Word has length 39 [2024-11-14 04:25:29,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:25:29,661 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 351 transitions. [2024-11-14 04:25:29,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 04:25:29,662 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 351 transitions. [2024-11-14 04:25:29,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-14 04:25:29,662 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:25:29,663 INFO L215 NwaCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:25:29,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-14 04:25:29,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:25:29,865 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 04:25:29,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:25:29,865 INFO L85 PathProgramCache]: Analyzing trace with hash -365414802, now seen corresponding path program 1 times [2024-11-14 04:25:29,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:25:29,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252268709] [2024-11-14 04:25:29,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:25:29,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:25:29,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:25:29,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1938089725] [2024-11-14 04:25:29,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:25:29,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:25:29,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:25:29,899 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:25:29,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-14 04:25:29,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:25:29,975 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 04:25:29,977 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:25:30,187 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 04:25:30,188 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:25:30,188 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:25:30,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252268709] [2024-11-14 04:25:30,188 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:25:30,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1938089725] [2024-11-14 04:25:30,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1938089725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:25:30,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:25:30,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:25:30,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121733474] [2024-11-14 04:25:30,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:25:30,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:25:30,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:25:30,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:25:30,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:25:30,191 INFO L87 Difference]: Start difference. First operand 273 states and 351 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 04:25:32,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:25:32,002 INFO L93 Difference]: Finished difference Result 300 states and 356 transitions. [2024-11-14 04:25:32,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:25:32,003 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 40 [2024-11-14 04:25:32,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:25:32,005 INFO L225 Difference]: With dead ends: 300 [2024-11-14 04:25:32,005 INFO L226 Difference]: Without dead ends: 298 [2024-11-14 04:25:32,006 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:25:32,007 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 77 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-14 04:25:32,007 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 233 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-14 04:25:32,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2024-11-14 04:25:32,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 274. [2024-11-14 04:25:32,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 191 states have (on average 1.5706806282722514) internal successors, (300), 246 states have internal predecessors, (300), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-14 04:25:32,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 350 transitions. [2024-11-14 04:25:32,030 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 350 transitions. Word has length 40 [2024-11-14 04:25:32,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:25:32,031 INFO L471 AbstractCegarLoop]: Abstraction has 274 states and 350 transitions. [2024-11-14 04:25:32,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 04:25:32,031 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 350 transitions. [2024-11-14 04:25:32,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-14 04:25:32,032 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:25:32,032 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:25:32,059 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-14 04:25:32,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:25:32,233 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 04:25:32,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:25:32,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1501587617, now seen corresponding path program 1 times [2024-11-14 04:25:32,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:25:32,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090949393] [2024-11-14 04:25:32,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:25:32,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:25:32,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:25:32,370 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-14 04:25:32,370 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:25:32,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090949393] [2024-11-14 04:25:32,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090949393] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:25:32,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:25:32,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:25:32,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379067621] [2024-11-14 04:25:32,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:25:32,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:25:32,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:25:32,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:25:32,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:25:32,372 INFO L87 Difference]: Start difference. First operand 274 states and 350 transitions. Second operand has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-14 04:25:32,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:25:32,445 INFO L93 Difference]: Finished difference Result 274 states and 350 transitions. [2024-11-14 04:25:32,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:25:32,446 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 45 [2024-11-14 04:25:32,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:25:32,448 INFO L225 Difference]: With dead ends: 274 [2024-11-14 04:25:32,448 INFO L226 Difference]: Without dead ends: 272 [2024-11-14 04:25:32,449 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:25:32,450 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 46 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:25:32,451 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 194 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:25:32,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2024-11-14 04:25:32,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 272. [2024-11-14 04:25:32,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 191 states have (on average 1.5392670157068062) internal successors, (294), 244 states have internal predecessors, (294), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-14 04:25:32,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 344 transitions. [2024-11-14 04:25:32,473 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 344 transitions. Word has length 45 [2024-11-14 04:25:32,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:25:32,473 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 344 transitions. [2024-11-14 04:25:32,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-14 04:25:32,474 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 344 transitions. [2024-11-14 04:25:32,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-14 04:25:32,475 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:25:32,475 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:25:32,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-14 04:25:32,475 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 04:25:32,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:25:32,476 INFO L85 PathProgramCache]: Analyzing trace with hash 695424256, now seen corresponding path program 1 times [2024-11-14 04:25:32,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:25:32,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316678452] [2024-11-14 04:25:32,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:25:32,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:25:32,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:25:32,591 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-14 04:25:32,592 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:25:32,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316678452] [2024-11-14 04:25:32,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316678452] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:25:32,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:25:32,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:25:32,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142190445] [2024-11-14 04:25:32,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:25:32,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:25:32,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:25:32,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:25:32,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:25:32,594 INFO L87 Difference]: Start difference. First operand 272 states and 344 transitions. Second operand has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-14 04:25:32,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:25:32,675 INFO L93 Difference]: Finished difference Result 272 states and 344 transitions. [2024-11-14 04:25:32,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:25:32,675 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 46 [2024-11-14 04:25:32,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:25:32,677 INFO L225 Difference]: With dead ends: 272 [2024-11-14 04:25:32,678 INFO L226 Difference]: Without dead ends: 270 [2024-11-14 04:25:32,678 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:25:32,679 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 45 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:25:32,679 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 193 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:25:32,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2024-11-14 04:25:32,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 270. [2024-11-14 04:25:32,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 191 states have (on average 1.4973821989528795) internal successors, (286), 242 states have internal predecessors, (286), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-14 04:25:32,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 336 transitions. [2024-11-14 04:25:32,700 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 336 transitions. Word has length 46 [2024-11-14 04:25:32,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:25:32,700 INFO L471 AbstractCegarLoop]: Abstraction has 270 states and 336 transitions. [2024-11-14 04:25:32,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-14 04:25:32,701 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 336 transitions. [2024-11-14 04:25:32,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-14 04:25:32,702 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:25:32,702 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:25:32,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-14 04:25:32,702 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 04:25:32,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:25:32,703 INFO L85 PathProgramCache]: Analyzing trace with hash 83357293, now seen corresponding path program 1 times [2024-11-14 04:25:32,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:25:32,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603222863] [2024-11-14 04:25:32,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:25:32,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:25:32,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:25:32,926 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-14 04:25:32,926 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:25:32,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603222863] [2024-11-14 04:25:32,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603222863] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:25:32,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:25:32,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 04:25:32,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022599468] [2024-11-14 04:25:32,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:25:32,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:25:32,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:25:32,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:25:32,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:25:32,929 INFO L87 Difference]: Start difference. First operand 270 states and 336 transitions. Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-14 04:25:33,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:25:33,874 INFO L93 Difference]: Finished difference Result 271 states and 336 transitions. [2024-11-14 04:25:33,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 04:25:33,875 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 47 [2024-11-14 04:25:33,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:25:33,876 INFO L225 Difference]: With dead ends: 271 [2024-11-14 04:25:33,877 INFO L226 Difference]: Without dead ends: 270 [2024-11-14 04:25:33,877 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-14 04:25:33,878 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 277 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-14 04:25:33,878 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 134 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-14 04:25:33,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2024-11-14 04:25:33,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 270. [2024-11-14 04:25:33,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 191 states have (on average 1.4921465968586387) internal successors, (285), 242 states have internal predecessors, (285), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-14 04:25:33,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 335 transitions. [2024-11-14 04:25:33,914 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 335 transitions. Word has length 47 [2024-11-14 04:25:33,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:25:33,914 INFO L471 AbstractCegarLoop]: Abstraction has 270 states and 335 transitions. [2024-11-14 04:25:33,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-14 04:25:33,915 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 335 transitions. [2024-11-14 04:25:33,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-14 04:25:33,916 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:25:33,916 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:25:33,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-14 04:25:33,916 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 04:25:33,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:25:33,917 INFO L85 PathProgramCache]: Analyzing trace with hash 83343391, now seen corresponding path program 1 times [2024-11-14 04:25:33,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:25:33,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880661363] [2024-11-14 04:25:33,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:25:33,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:25:33,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:25:34,036 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-14 04:25:34,036 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:25:34,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880661363] [2024-11-14 04:25:34,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880661363] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:25:34,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:25:34,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 04:25:34,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892774747] [2024-11-14 04:25:34,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:25:34,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:25:34,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:25:34,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:25:34,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:25:34,039 INFO L87 Difference]: Start difference. First operand 270 states and 335 transitions. Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-14 04:25:35,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:25:35,031 INFO L93 Difference]: Finished difference Result 273 states and 338 transitions. [2024-11-14 04:25:35,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 04:25:35,032 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 47 [2024-11-14 04:25:35,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:25:35,033 INFO L225 Difference]: With dead ends: 273 [2024-11-14 04:25:35,033 INFO L226 Difference]: Without dead ends: 272 [2024-11-14 04:25:35,034 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-14 04:25:35,035 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 277 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-14 04:25:35,035 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 134 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-14 04:25:35,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2024-11-14 04:25:35,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 272. [2024-11-14 04:25:35,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 193 states have (on average 1.4870466321243523) internal successors, (287), 244 states have internal predecessors, (287), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-14 04:25:35,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 337 transitions. [2024-11-14 04:25:35,060 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 337 transitions. Word has length 47 [2024-11-14 04:25:35,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:25:35,060 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 337 transitions. [2024-11-14 04:25:35,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-14 04:25:35,061 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 337 transitions. [2024-11-14 04:25:35,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-14 04:25:35,062 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:25:35,062 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:25:35,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-14 04:25:35,062 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 04:25:35,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:25:35,063 INFO L85 PathProgramCache]: Analyzing trace with hash 806130950, now seen corresponding path program 1 times [2024-11-14 04:25:35,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:25:35,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327920276] [2024-11-14 04:25:35,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:25:35,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:25:35,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:25:35,168 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-14 04:25:35,168 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:25:35,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327920276] [2024-11-14 04:25:35,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327920276] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:25:35,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:25:35,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:25:35,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806514800] [2024-11-14 04:25:35,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:25:35,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:25:35,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:25:35,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:25:35,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:25:35,171 INFO L87 Difference]: Start difference. First operand 272 states and 337 transitions. Second operand has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-14 04:25:35,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:25:35,484 INFO L93 Difference]: Finished difference Result 329 states and 405 transitions. [2024-11-14 04:25:35,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:25:35,485 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 50 [2024-11-14 04:25:35,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:25:35,487 INFO L225 Difference]: With dead ends: 329 [2024-11-14 04:25:35,488 INFO L226 Difference]: Without dead ends: 325 [2024-11-14 04:25:35,488 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:25:35,489 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 43 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 04:25:35,489 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 133 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 04:25:35,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2024-11-14 04:25:35,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 282. [2024-11-14 04:25:35,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 203 states have (on average 1.4679802955665024) internal successors, (298), 254 states have internal predecessors, (298), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-14 04:25:35,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 348 transitions. [2024-11-14 04:25:35,514 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 348 transitions. Word has length 50 [2024-11-14 04:25:35,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:25:35,515 INFO L471 AbstractCegarLoop]: Abstraction has 282 states and 348 transitions. [2024-11-14 04:25:35,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-14 04:25:35,515 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 348 transitions. [2024-11-14 04:25:35,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-14 04:25:35,516 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:25:35,516 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:25:35,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-14 04:25:35,516 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 04:25:35,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:25:35,517 INFO L85 PathProgramCache]: Analyzing trace with hash -2009871949, now seen corresponding path program 1 times [2024-11-14 04:25:35,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:25:35,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514671556] [2024-11-14 04:25:35,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:25:35,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:25:35,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:25:35,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1548788191] [2024-11-14 04:25:35,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:25:35,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:25:35,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:25:35,548 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:25:35,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-14 04:25:35,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:25:35,618 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 04:25:35,644 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:25:35,985 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-14 04:25:35,986 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:25:36,308 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:25:36,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514671556] [2024-11-14 04:25:36,308 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:25:36,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1548788191] [2024-11-14 04:25:36,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1548788191] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:25:36,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [764144794] [2024-11-14 04:25:36,341 INFO L159 IcfgInterpreter]: Started Sifa with 42 locations of interest [2024-11-14 04:25:36,342 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:25:36,346 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:25:36,353 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:25:36,354 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:25:42,390 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 04:25:42,391 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:25:42,393 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:25:45,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [764144794] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:25:45,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:25:45,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [3] total 22 [2024-11-14 04:25:45,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331219652] [2024-11-14 04:25:45,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:25:45,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-14 04:25:45,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:25:45,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-14 04:25:45,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2024-11-14 04:25:45,825 INFO L87 Difference]: Start difference. First operand 282 states and 348 transitions. Second operand has 21 states, 14 states have (on average 2.357142857142857) internal successors, (33), 13 states have internal predecessors, (33), 6 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-14 04:25:50,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:25:50,788 INFO L93 Difference]: Finished difference Result 348 states and 403 transitions. [2024-11-14 04:25:50,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-14 04:25:50,789 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 14 states have (on average 2.357142857142857) internal successors, (33), 13 states have internal predecessors, (33), 6 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) Word has length 53 [2024-11-14 04:25:50,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:25:50,791 INFO L225 Difference]: With dead ends: 348 [2024-11-14 04:25:50,791 INFO L226 Difference]: Without dead ends: 260 [2024-11-14 04:25:50,793 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 82 SyntacticMatches, 12 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 371 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=304, Invalid=752, Unknown=0, NotChecked=0, Total=1056 [2024-11-14 04:25:50,793 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 518 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 1579 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 1672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 1579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-14 04:25:50,794 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [524 Valid, 123 Invalid, 1672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 1579 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-14 04:25:50,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2024-11-14 04:25:50,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 255. [2024-11-14 04:25:50,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 179 states have (on average 1.4301675977653632) internal successors, (256), 230 states have internal predecessors, (256), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-14 04:25:50,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 300 transitions. [2024-11-14 04:25:50,827 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 300 transitions. Word has length 53 [2024-11-14 04:25:50,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:25:50,827 INFO L471 AbstractCegarLoop]: Abstraction has 255 states and 300 transitions. [2024-11-14 04:25:50,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 14 states have (on average 2.357142857142857) internal successors, (33), 13 states have internal predecessors, (33), 6 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-14 04:25:50,828 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 300 transitions. [2024-11-14 04:25:50,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-14 04:25:50,829 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:25:50,829 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:25:50,851 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-14 04:25:51,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-14 04:25:51,030 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 04:25:51,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:25:51,030 INFO L85 PathProgramCache]: Analyzing trace with hash -622365746, now seen corresponding path program 1 times [2024-11-14 04:25:51,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:25:51,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229209534] [2024-11-14 04:25:51,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:25:51,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:25:51,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:25:51,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [982878652] [2024-11-14 04:25:51,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:25:51,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:25:51,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:25:51,068 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:25:51,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-14 04:25:51,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:25:51,170 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 04:25:51,175 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:25:51,677 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-14 04:25:51,677 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:25:53,895 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:25:53,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229209534] [2024-11-14 04:25:53,895 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:25:53,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [982878652] [2024-11-14 04:25:53,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [982878652] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:25:53,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [430585142] [2024-11-14 04:25:53,899 INFO L159 IcfgInterpreter]: Started Sifa with 42 locations of interest [2024-11-14 04:25:53,899 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:25:53,900 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:25:53,900 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:25:53,900 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:25:58,377 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 04:25:58,378 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:25:58,380 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:26:02,362 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '12966#(and (<= |ULTIMATE.start_main_~b~0#1| 20) (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~p~0#1| 1) (<= 1 |ULTIMATE.start_main_~b~0#1|) (= |ULTIMATE.start_main_~q~0#1| 0) (exists ((|v_ULTIMATE.start_main_~y~0#1_64| Int) (|v_ULTIMATE.start_main_~r~0#1_74| Int)) (and (<= 0 (+ 9223372036854775808 |v_ULTIMATE.start_main_~r~0#1_74|)) (<= (+ 9223372036854775809 (* |v_ULTIMATE.start_main_~y~0#1_64| |v_ULTIMATE.start_main_~r~0#1_74|)) 0) (<= |v_ULTIMATE.start_main_~y~0#1_64| 20) (<= |v_ULTIMATE.start_main_~r~0#1_74| 0))) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~a~0#1| 20) (<= 0 (+ 35 |ULTIMATE.start_main_~a~0#1|)) (<= |ULTIMATE.start_main_~x~0#1| 20) (= |ULTIMATE.start_main_~s~0#1| 1))' at error location [2024-11-14 04:26:02,363 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:26:02,363 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:26:02,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-14 04:26:02,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414860568] [2024-11-14 04:26:02,363 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 04:26:02,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 04:26:02,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:26:02,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 04:26:02,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=532, Unknown=1, NotChecked=0, Total=650 [2024-11-14 04:26:02,366 INFO L87 Difference]: Start difference. First operand 255 states and 300 transitions. Second operand has 6 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-14 04:26:03,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:26:03,345 INFO L93 Difference]: Finished difference Result 403 states and 511 transitions. [2024-11-14 04:26:03,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 04:26:03,346 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 62 [2024-11-14 04:26:03,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:26:03,349 INFO L225 Difference]: With dead ends: 403 [2024-11-14 04:26:03,349 INFO L226 Difference]: Without dead ends: 401 [2024-11-14 04:26:03,350 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 102 SyntacticMatches, 17 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=117, Invalid=532, Unknown=1, NotChecked=0, Total=650 [2024-11-14 04:26:03,351 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 264 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-14 04:26:03,352 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 208 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-14 04:26:03,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2024-11-14 04:26:03,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 325. [2024-11-14 04:26:03,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 241 states have (on average 1.4688796680497926) internal successors, (354), 292 states have internal predecessors, (354), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-14 04:26:03,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 414 transitions. [2024-11-14 04:26:03,421 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 414 transitions. Word has length 62 [2024-11-14 04:26:03,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:26:03,421 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 414 transitions. [2024-11-14 04:26:03,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-14 04:26:03,422 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 414 transitions. [2024-11-14 04:26:03,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-14 04:26:03,423 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:26:03,423 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:26:03,453 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-14 04:26:03,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:26:03,625 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 04:26:03,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:26:03,625 INFO L85 PathProgramCache]: Analyzing trace with hash -2113468879, now seen corresponding path program 1 times [2024-11-14 04:26:03,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:26:03,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206873757] [2024-11-14 04:26:03,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:26:03,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:26:03,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:26:03,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [38233572] [2024-11-14 04:26:03,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:26:03,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:26:03,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:26:03,684 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:26:03,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-14 04:26:03,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:26:03,779 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 04:26:03,782 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:26:04,279 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-14 04:26:04,280 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:26:05,307 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:26:05,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206873757] [2024-11-14 04:26:05,308 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:26:05,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [38233572] [2024-11-14 04:26:05,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [38233572] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:26:05,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [23724469] [2024-11-14 04:26:05,311 INFO L159 IcfgInterpreter]: Started Sifa with 42 locations of interest [2024-11-14 04:26:05,311 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:26:05,312 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:26:05,312 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:26:05,312 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:26:08,985 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 04:26:08,986 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:26:08,988 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:26:12,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [23724469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:26:12,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:26:12,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [5] total 22 [2024-11-14 04:26:12,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551221732] [2024-11-14 04:26:12,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:26:12,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-14 04:26:12,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:26:12,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-14 04:26:12,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=472, Unknown=0, NotChecked=0, Total=600 [2024-11-14 04:26:12,130 INFO L87 Difference]: Start difference. First operand 325 states and 414 transitions. Second operand has 19 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 6 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-14 04:26:16,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:26:16,813 INFO L93 Difference]: Finished difference Result 348 states and 420 transitions. [2024-11-14 04:26:16,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-14 04:26:16,814 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 6 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 63 [2024-11-14 04:26:16,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:26:16,816 INFO L225 Difference]: With dead ends: 348 [2024-11-14 04:26:16,817 INFO L226 Difference]: Without dead ends: 311 [2024-11-14 04:26:16,818 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 106 SyntacticMatches, 18 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=344, Invalid=916, Unknown=0, NotChecked=0, Total=1260 [2024-11-14 04:26:16,819 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 557 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 1329 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 563 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 1422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 1329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-14 04:26:16,819 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [563 Valid, 120 Invalid, 1422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 1329 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-14 04:26:16,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2024-11-14 04:26:16,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 302. [2024-11-14 04:26:16,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 221 states have (on average 1.3981900452488687) internal successors, (309), 272 states have internal predecessors, (309), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-14 04:26:16,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 363 transitions. [2024-11-14 04:26:16,867 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 363 transitions. Word has length 63 [2024-11-14 04:26:16,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:26:16,867 INFO L471 AbstractCegarLoop]: Abstraction has 302 states and 363 transitions. [2024-11-14 04:26:16,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 6 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-14 04:26:16,868 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 363 transitions. [2024-11-14 04:26:16,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-14 04:26:16,870 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:26:16,870 INFO L215 NwaCegarLoop]: trace histogram [6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:26:16,901 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-14 04:26:17,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:26:17,071 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 04:26:17,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:26:17,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1323783293, now seen corresponding path program 1 times [2024-11-14 04:26:17,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:26:17,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915031014] [2024-11-14 04:26:17,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:26:17,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:26:17,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:26:17,325 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-14 04:26:17,326 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:26:17,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915031014] [2024-11-14 04:26:17,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915031014] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:26:17,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1581783472] [2024-11-14 04:26:17,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:26:17,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:26:17,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:26:17,328 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:26:17,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-14 04:26:17,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:26:17,401 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 04:26:17,414 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:26:17,693 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-14 04:26:17,693 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:26:17,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1581783472] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:26:17,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:26:17,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-14 04:26:17,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743511003] [2024-11-14 04:26:17,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:26:17,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:26:17,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:26:17,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:26:17,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-14 04:26:17,695 INFO L87 Difference]: Start difference. First operand 302 states and 363 transitions. Second operand has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-14 04:26:18,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:26:18,614 INFO L93 Difference]: Finished difference Result 411 states and 545 transitions. [2024-11-14 04:26:18,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:26:18,615 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 84 [2024-11-14 04:26:18,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:26:18,618 INFO L225 Difference]: With dead ends: 411 [2024-11-14 04:26:18,618 INFO L226 Difference]: Without dead ends: 409 [2024-11-14 04:26:18,619 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-14 04:26:18,619 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 95 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-14 04:26:18,620 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 148 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-14 04:26:18,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2024-11-14 04:26:18,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 298. [2024-11-14 04:26:18,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 219 states have (on average 1.3835616438356164) internal successors, (303), 268 states have internal predecessors, (303), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-14 04:26:18,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 357 transitions. [2024-11-14 04:26:18,670 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 357 transitions. Word has length 84 [2024-11-14 04:26:18,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:26:18,671 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 357 transitions. [2024-11-14 04:26:18,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-14 04:26:18,671 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 357 transitions. [2024-11-14 04:26:18,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-14 04:26:18,674 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:26:18,674 INFO L215 NwaCegarLoop]: trace histogram [6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:26:18,706 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-14 04:26:18,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-14 04:26:18,875 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 04:26:18,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:26:18,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1912390776, now seen corresponding path program 1 times [2024-11-14 04:26:18,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:26:18,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721901763] [2024-11-14 04:26:18,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:26:18,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:26:18,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:26:19,113 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-14 04:26:19,113 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:26:19,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721901763] [2024-11-14 04:26:19,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721901763] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:26:19,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1073026510] [2024-11-14 04:26:19,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:26:19,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:26:19,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:26:19,119 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:26:19,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-14 04:26:19,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:26:19,211 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 04:26:19,214 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:26:19,563 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-14 04:26:19,563 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:26:19,786 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-14 04:26:19,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1073026510] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:26:19,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [96259961] [2024-11-14 04:26:19,789 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-14 04:26:19,789 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:26:19,790 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:26:19,790 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:26:19,790 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:26:22,803 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 04:26:22,805 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:26:22,806 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:26:26,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [96259961] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:26:26,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:26:26,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [3, 3, 3] total 28 [2024-11-14 04:26:26,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801804287] [2024-11-14 04:26:26,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:26:26,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-14 04:26:26,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:26:26,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-14 04:26:26,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=662, Unknown=0, NotChecked=0, Total=812 [2024-11-14 04:26:26,414 INFO L87 Difference]: Start difference. First operand 298 states and 357 transitions. Second operand has 23 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 6 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-14 04:26:30,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:26:30,256 INFO L93 Difference]: Finished difference Result 302 states and 360 transitions. [2024-11-14 04:26:30,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-14 04:26:30,256 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 6 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) Word has length 85 [2024-11-14 04:26:30,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:26:30,258 INFO L225 Difference]: With dead ends: 302 [2024-11-14 04:26:30,258 INFO L226 Difference]: Without dead ends: 301 [2024-11-14 04:26:30,259 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 208 SyntacticMatches, 22 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 642 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=363, Invalid=1197, Unknown=0, NotChecked=0, Total=1560 [2024-11-14 04:26:30,265 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 605 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 1424 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 611 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 1489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:26:30,265 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [611 Valid, 146 Invalid, 1489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1424 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-14 04:26:30,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2024-11-14 04:26:30,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 298. [2024-11-14 04:26:30,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 219 states have (on average 1.3789954337899544) internal successors, (302), 268 states have internal predecessors, (302), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-14 04:26:30,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 356 transitions. [2024-11-14 04:26:30,307 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 356 transitions. Word has length 85 [2024-11-14 04:26:30,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:26:30,308 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 356 transitions. [2024-11-14 04:26:30,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 6 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-14 04:26:30,308 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 356 transitions. [2024-11-14 04:26:30,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-14 04:26:30,310 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:26:30,310 INFO L215 NwaCegarLoop]: trace histogram [6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:26:30,337 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-14 04:26:30,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-14 04:26:30,511 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 04:26:30,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:26:30,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1343176531, now seen corresponding path program 1 times [2024-11-14 04:26:30,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:26:30,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270449286] [2024-11-14 04:26:30,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:26:30,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:26:30,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:26:30,687 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-14 04:26:30,688 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:26:30,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270449286] [2024-11-14 04:26:30,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270449286] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:26:30,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1773720401] [2024-11-14 04:26:30,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:26:30,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:26:30,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:26:30,691 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:26:30,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-14 04:26:30,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:26:30,778 INFO L255 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 04:26:30,781 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:26:31,102 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-14 04:26:31,102 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:26:31,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1773720401] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:26:31,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:26:31,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-14 04:26:31,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673915817] [2024-11-14 04:26:31,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:26:31,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:26:31,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:26:31,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:26:31,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-14 04:26:31,104 INFO L87 Difference]: Start difference. First operand 298 states and 356 transitions. Second operand has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-14 04:26:31,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:26:31,812 INFO L93 Difference]: Finished difference Result 411 states and 543 transitions. [2024-11-14 04:26:31,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:26:31,812 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 86 [2024-11-14 04:26:31,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:26:31,814 INFO L225 Difference]: With dead ends: 411 [2024-11-14 04:26:31,814 INFO L226 Difference]: Without dead ends: 409 [2024-11-14 04:26:31,815 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-14 04:26:31,816 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 89 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 04:26:31,816 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 165 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 04:26:31,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2024-11-14 04:26:31,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 296. [2024-11-14 04:26:31,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 219 states have (on average 1.365296803652968) internal successors, (299), 266 states have internal predecessors, (299), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-14 04:26:31,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 353 transitions. [2024-11-14 04:26:31,882 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 353 transitions. Word has length 86 [2024-11-14 04:26:31,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:26:31,882 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 353 transitions. [2024-11-14 04:26:31,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-14 04:26:31,883 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 353 transitions. [2024-11-14 04:26:31,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-14 04:26:31,884 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:26:31,885 INFO L215 NwaCegarLoop]: trace histogram [6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:26:31,911 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-14 04:26:32,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:26:32,086 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 04:26:32,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:26:32,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1311200618, now seen corresponding path program 1 times [2024-11-14 04:26:32,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:26:32,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495011073] [2024-11-14 04:26:32,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:26:32,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:26:32,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:26:32,246 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-14 04:26:32,246 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:26:32,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495011073] [2024-11-14 04:26:32,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495011073] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:26:32,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1931118432] [2024-11-14 04:26:32,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:26:32,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:26:32,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:26:32,251 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:26:32,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-14 04:26:32,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:26:32,335 INFO L255 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 04:26:32,337 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:26:32,619 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-14 04:26:32,620 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:26:32,872 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-14 04:26:32,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1931118432] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:26:32,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1498376771] [2024-11-14 04:26:32,877 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-14 04:26:32,878 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:26:32,878 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:26:32,878 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:26:32,878 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:26:35,720 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 04:26:35,721 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:26:35,723 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:26:39,888 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '18680#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~p~0#1| 1) (= |ULTIMATE.start_main_~y~0#1| (+ |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|)) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= 0 (+ |ULTIMATE.start_main_~a~0#1| 17)) (not (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|)) (= (+ |ULTIMATE.start_main_~q~0#1| 1) 0) (<= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 20) (<= |ULTIMATE.start_main_~x~0#1| 20))' at error location [2024-11-14 04:26:39,888 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:26:39,888 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:26:39,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2024-11-14 04:26:39,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567284530] [2024-11-14 04:26:39,888 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 04:26:39,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 04:26:39,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:26:39,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 04:26:39,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=697, Unknown=0, NotChecked=0, Total=812 [2024-11-14 04:26:39,890 INFO L87 Difference]: Start difference. First operand 296 states and 353 transitions. Second operand has 8 states, 7 states have (on average 24.142857142857142) internal successors, (169), 8 states have internal predecessors, (169), 7 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) [2024-11-14 04:26:41,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:26:41,046 INFO L93 Difference]: Finished difference Result 667 states and 892 transitions. [2024-11-14 04:26:41,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 04:26:41,047 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 24.142857142857142) internal successors, (169), 8 states have internal predecessors, (169), 7 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) Word has length 87 [2024-11-14 04:26:41,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:26:41,051 INFO L225 Difference]: With dead ends: 667 [2024-11-14 04:26:41,051 INFO L226 Difference]: Without dead ends: 665 [2024-11-14 04:26:41,051 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 207 SyntacticMatches, 28 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 595 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=123, Invalid=747, Unknown=0, NotChecked=0, Total=870 [2024-11-14 04:26:41,052 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 220 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:26:41,052 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 345 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-14 04:26:41,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2024-11-14 04:26:41,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 490. [2024-11-14 04:26:41,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 395 states have (on average 1.4455696202531645) internal successors, (571), 442 states have internal predecessors, (571), 45 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-14 04:26:41,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 661 transitions. [2024-11-14 04:26:41,127 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 661 transitions. Word has length 87 [2024-11-14 04:26:41,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:26:41,128 INFO L471 AbstractCegarLoop]: Abstraction has 490 states and 661 transitions. [2024-11-14 04:26:41,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 24.142857142857142) internal successors, (169), 8 states have internal predecessors, (169), 7 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) [2024-11-14 04:26:41,128 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 661 transitions. [2024-11-14 04:26:41,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-14 04:26:41,130 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:26:41,130 INFO L215 NwaCegarLoop]: trace histogram [6, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:26:41,157 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-14 04:26:41,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-14 04:26:41,331 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 04:26:41,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:26:41,332 INFO L85 PathProgramCache]: Analyzing trace with hash 463116716, now seen corresponding path program 1 times [2024-11-14 04:26:41,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:26:41,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697606698] [2024-11-14 04:26:41,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:26:41,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:26:41,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:26:41,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2027132448] [2024-11-14 04:26:41,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:26:41,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:26:41,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:26:41,372 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:26:41,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-14 04:26:41,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:26:41,462 INFO L255 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 04:26:41,464 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:26:42,021 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-14 04:26:42,022 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:26:42,132 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:26:42,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697606698] [2024-11-14 04:26:42,133 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:26:42,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2027132448] [2024-11-14 04:26:42,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2027132448] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:26:42,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2063900621] [2024-11-14 04:26:42,135 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-14 04:26:42,137 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:26:42,138 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:26:42,138 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:26:42,138 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:26:56,348 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 04:26:56,349 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:26:56,350 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:27:05,511 WARN L286 SmtUtils]: Spent 5.21s on a formula simplification. DAG size of input: 52 DAG size of output: 45 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:27:18,114 WARN L286 SmtUtils]: Spent 7.37s on a formula simplification. DAG size of input: 56 DAG size of output: 49 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:27:24,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [2063900621] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:27:24,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:27:24,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [5] total 38 [2024-11-14 04:27:24,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020920642] [2024-11-14 04:27:24,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:27:24,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-14 04:27:24,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:27:24,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-14 04:27:24,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=260, Invalid=1380, Unknown=0, NotChecked=0, Total=1640 [2024-11-14 04:27:24,578 INFO L87 Difference]: Start difference. First operand 490 states and 661 transitions. Second operand has 35 states, 26 states have (on average 1.5384615384615385) internal successors, (40), 26 states have internal predecessors, (40), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 04:28:25,704 WARN L286 SmtUtils]: Spent 5.29s on a formula simplification. DAG size of input: 119 DAG size of output: 68 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:29:35,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-14 04:29:48,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-14 04:29:51,004 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-14 04:29:51,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:29:51,272 INFO L93 Difference]: Finished difference Result 629 states and 905 transitions. [2024-11-14 04:29:51,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2024-11-14 04:29:51,273 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 26 states have (on average 1.5384615384615385) internal successors, (40), 26 states have internal predecessors, (40), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Word has length 89 [2024-11-14 04:29:51,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:29:51,278 INFO L225 Difference]: With dead ends: 629 [2024-11-14 04:29:51,278 INFO L226 Difference]: Without dead ends: 508 [2024-11-14 04:29:51,281 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 133 SyntacticMatches, 19 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3314 ImplicationChecksByTransitivity, 103.2s TimeCoverageRelationStatistics Valid=2792, Invalid=9418, Unknown=0, NotChecked=0, Total=12210 [2024-11-14 04:29:51,282 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 1530 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 2676 mSolverCounterSat, 363 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 71.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1530 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 3041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 363 IncrementalHoareTripleChecker+Valid, 2676 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 71.5s IncrementalHoareTripleChecker+Time [2024-11-14 04:29:51,282 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1530 Valid, 114 Invalid, 3041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [363 Valid, 2676 Invalid, 2 Unknown, 0 Unchecked, 71.5s Time] [2024-11-14 04:29:51,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2024-11-14 04:29:51,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 412. [2024-11-14 04:29:51,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 360 states have (on average 1.1388888888888888) internal successors, (410), 367 states have internal predecessors, (410), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-14 04:29:51,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 494 transitions. [2024-11-14 04:29:51,396 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 494 transitions. Word has length 89 [2024-11-14 04:29:51,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:29:51,396 INFO L471 AbstractCegarLoop]: Abstraction has 412 states and 494 transitions. [2024-11-14 04:29:51,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 26 states have (on average 1.5384615384615385) internal successors, (40), 26 states have internal predecessors, (40), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 04:29:51,397 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 494 transitions. [2024-11-14 04:29:51,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-14 04:29:51,398 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:29:51,398 INFO L215 NwaCegarLoop]: trace histogram [6, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:29:51,424 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-14 04:29:51,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:29:51,599 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 04:29:51,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:29:51,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1471716358, now seen corresponding path program 1 times [2024-11-14 04:29:51,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:29:51,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585624027] [2024-11-14 04:29:51,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:29:51,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:29:51,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:29:51,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [761969723] [2024-11-14 04:29:51,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:29:51,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:29:51,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:29:51,628 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:29:51,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-14 04:29:51,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:29:51,711 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-14 04:29:51,714 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:29:52,195 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-14 04:29:52,195 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:29:52,662 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:29:52,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585624027] [2024-11-14 04:29:52,662 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:29:52,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [761969723] [2024-11-14 04:29:52,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [761969723] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:29:52,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1354019826] [2024-11-14 04:29:52,664 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-14 04:29:52,664 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:29:52,664 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:29:52,664 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:29:52,664 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:30:04,284 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 04:30:04,285 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:30:04,286 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:30:16,722 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '21967#(and (<= |ULTIMATE.start_main_~q~0#1| 0) (<= 0 (+ 19 |ULTIMATE.start_main_~b~0#1|)) (<= |ULTIMATE.start_main_~b~0#1| 20) (<= 1 |#StackHeapBarrier|) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~q~0#1|)) (<= 1 |ULTIMATE.start_main_~y~0#1|) (exists ((|v_ULTIMATE.start_main_~s~0#1_112| Int) (|v_ULTIMATE.start_main_~p~0#1_100| Int)) (and (<= |v_ULTIMATE.start_main_~s~0#1_112| 9223372036854775808) (<= 1 |v_ULTIMATE.start_main_~p~0#1_100|) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~s~0#1_112| |v_ULTIMATE.start_main_~p~0#1_100|)) (<= |v_ULTIMATE.start_main_~p~0#1_100| 9223372036854775807))) (<= 1 |ULTIMATE.start_main_~a~0#1|) (<= |ULTIMATE.start_main_~r~0#1| 0) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~y~0#1| 20) (<= |ULTIMATE.start_main_~x~0#1| 20))' at error location [2024-11-14 04:30:16,723 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:30:16,723 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:30:16,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-14 04:30:16,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175518565] [2024-11-14 04:30:16,723 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 04:30:16,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 04:30:16,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:30:16,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 04:30:16,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=222, Invalid=1418, Unknown=0, NotChecked=0, Total=1640 [2024-11-14 04:30:16,726 INFO L87 Difference]: Start difference. First operand 412 states and 494 transitions. Second operand has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-14 04:30:17,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:30:17,108 INFO L93 Difference]: Finished difference Result 490 states and 582 transitions. [2024-11-14 04:30:17,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:30:17,109 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 90 [2024-11-14 04:30:17,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:30:17,112 INFO L225 Difference]: With dead ends: 490 [2024-11-14 04:30:17,112 INFO L226 Difference]: Without dead ends: 489 [2024-11-14 04:30:17,113 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 135 SyntacticMatches, 17 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 896 ImplicationChecksByTransitivity, 12.5s TimeCoverageRelationStatistics Valid=222, Invalid=1418, Unknown=0, NotChecked=0, Total=1640 [2024-11-14 04:30:17,113 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 69 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 04:30:17,114 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 96 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 04:30:17,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2024-11-14 04:30:17,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 451. [2024-11-14 04:30:17,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 396 states have (on average 1.128787878787879) internal successors, (447), 403 states have internal predecessors, (447), 45 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-14 04:30:17,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 537 transitions. [2024-11-14 04:30:17,207 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 537 transitions. Word has length 90 [2024-11-14 04:30:17,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:30:17,208 INFO L471 AbstractCegarLoop]: Abstraction has 451 states and 537 transitions. [2024-11-14 04:30:17,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-14 04:30:17,208 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 537 transitions. [2024-11-14 04:30:17,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-14 04:30:17,209 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:30:17,210 INFO L215 NwaCegarLoop]: trace histogram [6, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:30:17,240 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-14 04:30:17,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-14 04:30:17,414 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 04:30:17,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:30:17,415 INFO L85 PathProgramCache]: Analyzing trace with hash -749900538, now seen corresponding path program 2 times [2024-11-14 04:30:17,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:30:17,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601115370] [2024-11-14 04:30:17,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:30:17,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:30:17,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:30:17,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1209182905] [2024-11-14 04:30:17,451 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 04:30:17,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:30:17,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:30:17,454 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:30:17,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-14 04:30:17,532 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-14 04:30:17,533 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:30:17,534 INFO L255 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 04:30:17,537 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:30:17,766 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 3 proven. 27 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-14 04:30:17,767 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:30:18,346 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:30:18,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601115370] [2024-11-14 04:30:18,347 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:30:18,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1209182905] [2024-11-14 04:30:18,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1209182905] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:30:18,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1491711743] [2024-11-14 04:30:18,350 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-14 04:30:18,352 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:30:18,353 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:30:18,353 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:30:18,353 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:30:29,744 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 04:30:29,745 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:30:29,746 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:30:42,083 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '23382#(and (<= |ULTIMATE.start_main_~q~0#1| 0) (<= |ULTIMATE.start_main_~b~0#1| 20) (<= 1 |#StackHeapBarrier|) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~q~0#1|)) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= 1 |ULTIMATE.start_main_~a~0#1|) (exists ((|v_ULTIMATE.start_main_~s~0#1_128| Int) (|v_ULTIMATE.start_main_~p~0#1_106| Int)) (and (<= 1 |v_ULTIMATE.start_main_~p~0#1_106|) (<= |v_ULTIMATE.start_main_~p~0#1_106| 9223372036854775807) (<= |v_ULTIMATE.start_main_~s~0#1_128| 9223372036854775808) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~s~0#1_128| |v_ULTIMATE.start_main_~p~0#1_106|)))) (<= |ULTIMATE.start_main_~r~0#1| 0) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~y~0#1| 20) (<= |ULTIMATE.start_main_~x~0#1| 20))' at error location [2024-11-14 04:30:42,084 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:30:42,084 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:30:42,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-14 04:30:42,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031409423] [2024-11-14 04:30:42,084 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 04:30:42,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:30:42,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:30:42,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:30:42,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=1347, Unknown=0, NotChecked=0, Total=1560 [2024-11-14 04:30:42,085 INFO L87 Difference]: Start difference. First operand 451 states and 537 transitions. Second operand has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-14 04:30:42,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:30:42,352 INFO L93 Difference]: Finished difference Result 571 states and 680 transitions. [2024-11-14 04:30:42,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:30:42,353 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 90 [2024-11-14 04:30:42,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:30:42,355 INFO L225 Difference]: With dead ends: 571 [2024-11-14 04:30:42,355 INFO L226 Difference]: Without dead ends: 570 [2024-11-14 04:30:42,356 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 136 SyntacticMatches, 17 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 852 ImplicationChecksByTransitivity, 12.5s TimeCoverageRelationStatistics Valid=220, Invalid=1420, Unknown=0, NotChecked=0, Total=1640 [2024-11-14 04:30:42,356 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 69 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:30:42,357 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 117 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 04:30:42,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2024-11-14 04:30:42,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 553. [2024-11-14 04:30:42,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 489 states have (on average 1.1349693251533743) internal successors, (555), 496 states have internal predecessors, (555), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-14 04:30:42,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 663 transitions. [2024-11-14 04:30:42,444 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 663 transitions. Word has length 90 [2024-11-14 04:30:42,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:30:42,444 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 663 transitions. [2024-11-14 04:30:42,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-14 04:30:42,444 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 663 transitions. [2024-11-14 04:30:42,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-14 04:30:42,446 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:30:42,446 INFO L215 NwaCegarLoop]: trace histogram [6, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:30:42,468 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-14 04:30:42,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-14 04:30:42,647 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 04:30:42,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:30:42,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1275181320, now seen corresponding path program 1 times [2024-11-14 04:30:42,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:30:42,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544825296] [2024-11-14 04:30:42,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:30:42,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:30:42,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:30:42,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1778814815] [2024-11-14 04:30:42,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:30:42,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:30:42,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:30:42,691 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:30:42,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-14 04:30:42,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:30:42,772 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-14 04:30:42,774 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:30:43,186 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-14 04:30:43,186 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:30:43,499 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:30:43,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544825296] [2024-11-14 04:30:43,499 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:30:43,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1778814815] [2024-11-14 04:30:43,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1778814815] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:30:43,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [854099567] [2024-11-14 04:30:43,501 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-14 04:30:43,501 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:30:43,502 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:30:43,502 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:30:43,502 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:30:54,055 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 04:30:54,056 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:30:54,057 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:31:03,546 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '25015#(and (<= 1 |ULTIMATE.start_main_~s~0#1|) (<= 0 (+ 19 |ULTIMATE.start_main_~b~0#1|)) (<= 1 |ULTIMATE.start_main_~p~0#1|) (<= |ULTIMATE.start_main_~b~0#1| 20) (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= 1 |ULTIMATE.start_main_~a~0#1|) (exists ((|v_ULTIMATE.start_main_~r~0#1_112| Int) (|v_ULTIMATE.start_main_~q~0#1_141| Int)) (and (<= |v_ULTIMATE.start_main_~q~0#1_141| 0) (<= 0 (+ 9223372036854775808 |v_ULTIMATE.start_main_~r~0#1_112|)) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_141| 9223372036854775808)) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_141| |v_ULTIMATE.start_main_~r~0#1_112|)))) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 20) (<= (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~s~0#1|) 9223372036854775807) (<= |ULTIMATE.start_main_~x~0#1| 20))' at error location [2024-11-14 04:31:03,546 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:31:03,546 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:31:03,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-14 04:31:03,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009255339] [2024-11-14 04:31:03,547 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 04:31:03,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:31:03,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:31:03,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:31:03,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=1362, Unknown=0, NotChecked=0, Total=1560 [2024-11-14 04:31:03,548 INFO L87 Difference]: Start difference. First operand 553 states and 663 transitions. Second operand has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-14 04:31:03,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:31:03,995 INFO L93 Difference]: Finished difference Result 590 states and 705 transitions. [2024-11-14 04:31:03,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:31:03,995 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 92 [2024-11-14 04:31:03,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:31:03,997 INFO L225 Difference]: With dead ends: 590 [2024-11-14 04:31:03,998 INFO L226 Difference]: Without dead ends: 589 [2024-11-14 04:31:03,999 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 141 SyntacticMatches, 18 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 769 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=198, Invalid=1362, Unknown=0, NotChecked=0, Total=1560 [2024-11-14 04:31:03,999 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 36 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 04:31:04,000 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 138 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 04:31:04,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2024-11-14 04:31:04,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 555. [2024-11-14 04:31:04,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 491 states have (on average 1.1344195519348268) internal successors, (557), 498 states have internal predecessors, (557), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-14 04:31:04,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 665 transitions. [2024-11-14 04:31:04,064 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 665 transitions. Word has length 92 [2024-11-14 04:31:04,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:31:04,065 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 665 transitions. [2024-11-14 04:31:04,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-14 04:31:04,065 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 665 transitions. [2024-11-14 04:31:04,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-14 04:31:04,066 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:31:04,066 INFO L215 NwaCegarLoop]: trace histogram [6, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:31:04,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-14 04:31:04,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-14 04:31:04,270 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 04:31:04,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:31:04,271 INFO L85 PathProgramCache]: Analyzing trace with hash 900090376, now seen corresponding path program 2 times [2024-11-14 04:31:04,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:31:04,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199278981] [2024-11-14 04:31:04,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:31:04,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:31:04,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:31:04,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [143335539] [2024-11-14 04:31:04,293 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 04:31:04,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:31:04,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:31:04,296 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:31:04,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-14 04:31:04,379 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-14 04:31:04,379 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:31:04,381 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-14 04:31:04,383 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:31:04,911 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-14 04:31:04,911 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:31:07,532 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:31:07,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199278981] [2024-11-14 04:31:07,533 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:31:07,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [143335539] [2024-11-14 04:31:07,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [143335539] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:31:07,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1479441126] [2024-11-14 04:31:07,535 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-14 04:31:07,535 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:31:07,535 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:31:07,535 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:31:07,535 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:31:18,225 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 04:31:18,226 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:31:18,227 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:31:30,862 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '26670#(and (<= 1 |ULTIMATE.start_main_~s~0#1|) (<= 0 (+ 19 |ULTIMATE.start_main_~b~0#1|)) (<= 1 |ULTIMATE.start_main_~p~0#1|) (<= |ULTIMATE.start_main_~b~0#1| 20) (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~q~0#1_157| Int) (|v_ULTIMATE.start_main_~r~0#1_118| Int)) (and (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_157| 9223372036854775808)) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_157| |v_ULTIMATE.start_main_~r~0#1_118|)) (<= 0 (+ 9223372036854775808 |v_ULTIMATE.start_main_~r~0#1_118|)) (<= |v_ULTIMATE.start_main_~q~0#1_157| 0))) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= 1 |ULTIMATE.start_main_~a~0#1|) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 20) (<= (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~s~0#1|) 9223372036854775807) (<= |ULTIMATE.start_main_~x~0#1| 20))' at error location [2024-11-14 04:31:30,862 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:31:30,862 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:31:30,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-14 04:31:30,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575881198] [2024-11-14 04:31:30,862 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 04:31:30,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:31:30,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:31:30,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:31:30,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=1361, Unknown=1, NotChecked=0, Total=1560 [2024-11-14 04:31:30,864 INFO L87 Difference]: Start difference. First operand 555 states and 665 transitions. Second operand has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-14 04:31:31,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:31:31,339 INFO L93 Difference]: Finished difference Result 563 states and 672 transitions. [2024-11-14 04:31:31,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:31:31,340 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 92 [2024-11-14 04:31:31,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:31:31,342 INFO L225 Difference]: With dead ends: 563 [2024-11-14 04:31:31,342 INFO L226 Difference]: Without dead ends: 562 [2024-11-14 04:31:31,343 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 141 SyntacticMatches, 18 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 742 ImplicationChecksByTransitivity, 14.8s TimeCoverageRelationStatistics Valid=198, Invalid=1361, Unknown=1, NotChecked=0, Total=1560 [2024-11-14 04:31:31,343 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 36 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 04:31:31,344 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 133 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 04:31:31,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2024-11-14 04:31:31,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 555. [2024-11-14 04:31:31,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 491 states have (on average 1.1323828920570265) internal successors, (556), 498 states have internal predecessors, (556), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-14 04:31:31,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 664 transitions. [2024-11-14 04:31:31,452 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 664 transitions. Word has length 92 [2024-11-14 04:31:31,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:31:31,452 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 664 transitions. [2024-11-14 04:31:31,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-14 04:31:31,453 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 664 transitions. [2024-11-14 04:31:31,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-14 04:31:31,454 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:31:31,454 INFO L215 NwaCegarLoop]: trace histogram [7, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:31:31,478 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-14 04:31:31,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-14 04:31:31,658 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 04:31:31,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:31:31,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1046240501, now seen corresponding path program 2 times [2024-11-14 04:31:31,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:31:31,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061459151] [2024-11-14 04:31:31,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:31:31,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:31:31,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:31:31,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2080875899] [2024-11-14 04:31:31,681 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 04:31:31,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:31:31,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:31:31,684 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:31:31,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-14 04:31:31,764 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-14 04:31:31,764 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:31:31,765 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-14 04:31:31,768 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:31:32,507 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 2 proven. 50 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-14 04:31:32,507 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:31:34,679 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:31:34,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061459151] [2024-11-14 04:31:34,680 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:31:34,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2080875899] [2024-11-14 04:31:34,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2080875899] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:31:34,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1251315584] [2024-11-14 04:31:34,681 INFO L159 IcfgInterpreter]: Started Sifa with 42 locations of interest [2024-11-14 04:31:34,681 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:31:34,681 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:31:34,682 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:31:34,682 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:31:36,780 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 04:31:36,783 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:31:36,784 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:31:41,814 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '28337#(and (<= |ULTIMATE.start_main_~b~0#1| 20) (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~p~0#1| 1) (<= 0 (+ |ULTIMATE.start_main_~a~0#1| 33)) (<= 1 |ULTIMATE.start_main_~b~0#1|) (= |ULTIMATE.start_main_~q~0#1| 0) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~a~0#1| 20) (exists ((|v_ULTIMATE.start_main_~r~0#1_126| Int) (|v_ULTIMATE.start_main_~y~0#1_66| Int)) (and (<= |v_ULTIMATE.start_main_~y~0#1_66| 20) (<= 0 (+ 9223372036854775808 |v_ULTIMATE.start_main_~r~0#1_126|)) (<= (+ (* |v_ULTIMATE.start_main_~y~0#1_66| |v_ULTIMATE.start_main_~r~0#1_126|) 9223372036854775809) 0) (<= |v_ULTIMATE.start_main_~r~0#1_126| 0))) (<= |ULTIMATE.start_main_~x~0#1| 20) (= |ULTIMATE.start_main_~s~0#1| 1))' at error location [2024-11-14 04:31:41,815 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:31:41,815 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:31:41,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-14 04:31:41,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281358400] [2024-11-14 04:31:41,815 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 04:31:41,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-14 04:31:41,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:31:41,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-14 04:31:41,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=783, Unknown=1, NotChecked=0, Total=930 [2024-11-14 04:31:41,816 INFO L87 Difference]: Start difference. First operand 555 states and 664 transitions. Second operand has 10 states, 8 states have (on average 8.5) internal successors, (68), 9 states have internal predecessors, (68), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-14 04:31:42,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:31:42,577 INFO L93 Difference]: Finished difference Result 601 states and 717 transitions. [2024-11-14 04:31:42,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-14 04:31:42,577 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 8.5) internal successors, (68), 9 states have internal predecessors, (68), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 98 [2024-11-14 04:31:42,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:31:42,579 INFO L225 Difference]: With dead ends: 601 [2024-11-14 04:31:42,579 INFO L226 Difference]: Without dead ends: 600 [2024-11-14 04:31:42,580 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 155 SyntacticMatches, 31 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 776 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=186, Invalid=1073, Unknown=1, NotChecked=0, Total=1260 [2024-11-14 04:31:42,580 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 123 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 04:31:42,581 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 202 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 04:31:42,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2024-11-14 04:31:42,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 555. [2024-11-14 04:31:42,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 491 states have (on average 1.1303462321792261) internal successors, (555), 498 states have internal predecessors, (555), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-14 04:31:42,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 663 transitions. [2024-11-14 04:31:42,679 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 663 transitions. Word has length 98 [2024-11-14 04:31:42,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:31:42,680 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 663 transitions. [2024-11-14 04:31:42,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 8.5) internal successors, (68), 9 states have internal predecessors, (68), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-14 04:31:42,680 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 663 transitions. [2024-11-14 04:31:42,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-14 04:31:42,682 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:31:42,682 INFO L215 NwaCegarLoop]: trace histogram [7, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:31:42,706 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-14 04:31:42,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:31:42,886 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 04:31:42,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:31:42,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1170285862, now seen corresponding path program 1 times [2024-11-14 04:31:42,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:31:42,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576962649] [2024-11-14 04:31:42,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:31:42,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:31:42,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:31:42,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1957277487] [2024-11-14 04:31:42,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:31:42,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:31:42,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:31:42,939 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:31:42,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-14 04:31:43,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:31:43,040 INFO L255 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-14 04:31:43,043 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:31:43,820 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 1 proven. 50 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-11-14 04:31:43,820 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:31:44,512 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:31:44,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576962649] [2024-11-14 04:31:44,512 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:31:44,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1957277487] [2024-11-14 04:31:44,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1957277487] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:31:44,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1472629013] [2024-11-14 04:31:44,513 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-14 04:31:44,513 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:31:44,513 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:31:44,514 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:31:44,514 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:31:53,739 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 04:31:53,740 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:31:53,741 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:32:07,863 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '30060#(and (<= 1 |ULTIMATE.start_main_~s~0#1|) (<= |ULTIMATE.start_main_~q~0#1| 0) (<= |ULTIMATE.start_main_~b~0#1| 20) (<= 1 |#StackHeapBarrier|) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~q~0#1|)) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~s~0#1| 9223372036854775808) (<= 1 |ULTIMATE.start_main_~a~0#1|) (<= |ULTIMATE.start_main_~r~0#1| 0) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~y~0#1| 20) (exists ((|v_ULTIMATE.start_main_~x~0#1_64| Int) (|v_ULTIMATE.start_main_~p~0#1_128| Int)) (and (<= |v_ULTIMATE.start_main_~x~0#1_64| 20) (<= |v_ULTIMATE.start_main_~p~0#1_128| 9223372036854775807) (<= 1 |v_ULTIMATE.start_main_~x~0#1_64|) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~x~0#1_64| |v_ULTIMATE.start_main_~p~0#1_128|)))))' at error location [2024-11-14 04:32:07,863 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:32:07,863 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:32:07,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-14 04:32:07,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813534934] [2024-11-14 04:32:07,864 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 04:32:07,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 04:32:07,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:32:07,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 04:32:07,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=261, Invalid=1901, Unknown=0, NotChecked=0, Total=2162 [2024-11-14 04:32:07,865 INFO L87 Difference]: Start difference. First operand 555 states and 663 transitions. Second operand has 11 states, 9 states have (on average 7.888888888888889) internal successors, (71), 10 states have internal predecessors, (71), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-14 04:32:08,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:32:08,625 INFO L93 Difference]: Finished difference Result 657 states and 787 transitions. [2024-11-14 04:32:08,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 04:32:08,626 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 7.888888888888889) internal successors, (71), 10 states have internal predecessors, (71), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 101 [2024-11-14 04:32:08,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:32:08,629 INFO L225 Difference]: With dead ends: 657 [2024-11-14 04:32:08,629 INFO L226 Difference]: Without dead ends: 656 [2024-11-14 04:32:08,630 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 159 SyntacticMatches, 20 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1311 ImplicationChecksByTransitivity, 14.6s TimeCoverageRelationStatistics Valid=316, Invalid=2654, Unknown=0, NotChecked=0, Total=2970 [2024-11-14 04:32:08,630 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 129 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 04:32:08,630 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 232 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 04:32:08,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 656 states. [2024-11-14 04:32:08,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 656 to 640. [2024-11-14 04:32:08,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 567 states have (on average 1.1305114638447973) internal successors, (641), 574 states have internal predecessors, (641), 63 states have call successors, (63), 2 states have call predecessors, (63), 2 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-14 04:32:08,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 767 transitions. [2024-11-14 04:32:08,689 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 767 transitions. Word has length 101 [2024-11-14 04:32:08,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:32:08,689 INFO L471 AbstractCegarLoop]: Abstraction has 640 states and 767 transitions. [2024-11-14 04:32:08,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 7.888888888888889) internal successors, (71), 10 states have internal predecessors, (71), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-14 04:32:08,689 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 767 transitions. [2024-11-14 04:32:08,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-14 04:32:08,690 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:32:08,690 INFO L215 NwaCegarLoop]: trace histogram [7, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:32:08,711 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-14 04:32:08,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-11-14 04:32:08,891 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 04:32:08,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:32:08,891 INFO L85 PathProgramCache]: Analyzing trace with hash 36530650, now seen corresponding path program 2 times [2024-11-14 04:32:08,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:32:08,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870922340] [2024-11-14 04:32:08,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:32:08,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:32:08,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:32:08,943 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-14 04:32:08,943 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:32:08,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870922340] [2024-11-14 04:32:08,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870922340] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:32:08,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:32:08,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:32:08,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387197877] [2024-11-14 04:32:08,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:32:08,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:32:08,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:32:08,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:32:08,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:32:08,945 INFO L87 Difference]: Start difference. First operand 640 states and 767 transitions. Second operand has 3 states, 2 states have (on average 30.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-14 04:32:09,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:32:09,345 INFO L93 Difference]: Finished difference Result 643 states and 767 transitions. [2024-11-14 04:32:09,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:32:09,345 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 30.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 101 [2024-11-14 04:32:09,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:32:09,347 INFO L225 Difference]: With dead ends: 643 [2024-11-14 04:32:09,347 INFO L226 Difference]: Without dead ends: 642 [2024-11-14 04:32:09,348 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:32:09,348 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 7 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 04:32:09,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 78 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 04:32:09,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2024-11-14 04:32:09,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 562. [2024-11-14 04:32:09,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 497 states have (on average 1.1167002012072436) internal successors, (555), 504 states have internal predecessors, (555), 55 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2024-11-14 04:32:09,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 665 transitions. [2024-11-14 04:32:09,472 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 665 transitions. Word has length 101 [2024-11-14 04:32:09,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:32:09,474 INFO L471 AbstractCegarLoop]: Abstraction has 562 states and 665 transitions. [2024-11-14 04:32:09,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 30.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-14 04:32:09,474 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 665 transitions. [2024-11-14 04:32:09,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-14 04:32:09,479 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:32:09,479 INFO L215 NwaCegarLoop]: trace histogram [8, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:32:09,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-14 04:32:09,479 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 04:32:09,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:32:09,479 INFO L85 PathProgramCache]: Analyzing trace with hash -522923422, now seen corresponding path program 1 times [2024-11-14 04:32:09,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:32:09,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907648437] [2024-11-14 04:32:09,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:32:09,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:32:09,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:32:09,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [884300055] [2024-11-14 04:32:09,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:32:09,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:32:09,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:32:09,552 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:32:09,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-14 04:32:09,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:32:09,670 INFO L255 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-14 04:32:09,672 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:32:10,604 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-11-14 04:32:10,605 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:32:14,768 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:32:14,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907648437] [2024-11-14 04:32:14,768 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:32:14,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [884300055] [2024-11-14 04:32:14,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [884300055] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:32:14,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1505466645] [2024-11-14 04:32:14,770 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-14 04:32:14,770 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:32:14,770 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:32:14,770 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:32:14,771 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:32:24,216 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 04:32:24,217 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:32:24,218 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:32:45,308 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '33370#(and (<= 1 |ULTIMATE.start_main_~s~0#1|) (<= 1 |ULTIMATE.start_main_~p~0#1|) (<= |ULTIMATE.start_main_~b~0#1| 20) (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~s~0#1| 9223372036854775808) (<= 1 |ULTIMATE.start_main_~a~0#1|) (<= |ULTIMATE.start_main_~r~0#1| 0) (exists ((|v_ULTIMATE.start_main_~q~0#1_187| Int) (|v_ULTIMATE.start_main_~x~0#1_65| Int)) (and (<= (+ 9223372036854775809 (* |v_ULTIMATE.start_main_~x~0#1_65| |v_ULTIMATE.start_main_~q~0#1_187|)) 0) (<= |v_ULTIMATE.start_main_~x~0#1_65| 20) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_187| 9223372036854775808)) (= (+ (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~y~0#1|) (* |v_ULTIMATE.start_main_~x~0#1_65| |ULTIMATE.start_main_~p~0#1|)) |ULTIMATE.start_main_~a~0#1|) (<= (+ (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~y~0#1|) (* |v_ULTIMATE.start_main_~x~0#1_65| |ULTIMATE.start_main_~p~0#1|)) 9223372036854775807))) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~y~0#1| 20) (<= |ULTIMATE.start_main_~p~0#1| 9223372036854775807))' at error location [2024-11-14 04:32:45,309 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:32:45,309 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:32:45,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-14 04:32:45,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319746031] [2024-11-14 04:32:45,309 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 04:32:45,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-14 04:32:45,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:32:45,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-14 04:32:45,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=262, Invalid=1806, Unknown=2, NotChecked=0, Total=2070 [2024-11-14 04:32:45,310 INFO L87 Difference]: Start difference. First operand 562 states and 665 transitions. Second operand has 10 states, 8 states have (on average 9.25) internal successors, (74), 10 states have internal predecessors, (74), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-14 04:32:45,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:32:45,753 INFO L93 Difference]: Finished difference Result 643 states and 762 transitions. [2024-11-14 04:32:45,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-14 04:32:45,753 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 9.25) internal successors, (74), 10 states have internal predecessors, (74), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) Word has length 107 [2024-11-14 04:32:45,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:32:45,756 INFO L225 Difference]: With dead ends: 643 [2024-11-14 04:32:45,756 INFO L226 Difference]: Without dead ends: 642 [2024-11-14 04:32:45,757 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 178 SyntacticMatches, 20 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1045 ImplicationChecksByTransitivity, 25.3s TimeCoverageRelationStatistics Valid=273, Invalid=1887, Unknown=2, NotChecked=0, Total=2162 [2024-11-14 04:32:45,758 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 78 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 04:32:45,758 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 255 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 04:32:45,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2024-11-14 04:32:45,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 562. [2024-11-14 04:32:45,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 497 states have (on average 1.1146881287726358) internal successors, (554), 504 states have internal predecessors, (554), 55 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2024-11-14 04:32:45,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 664 transitions. [2024-11-14 04:32:45,860 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 664 transitions. Word has length 107 [2024-11-14 04:32:45,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:32:45,861 INFO L471 AbstractCegarLoop]: Abstraction has 562 states and 664 transitions. [2024-11-14 04:32:45,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 9.25) internal successors, (74), 10 states have internal predecessors, (74), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-14 04:32:45,861 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 664 transitions. [2024-11-14 04:32:45,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-14 04:32:45,862 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:32:45,862 INFO L215 NwaCegarLoop]: trace histogram [9, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:32:45,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-11-14 04:32:46,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:32:46,067 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 04:32:46,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:32:46,067 INFO L85 PathProgramCache]: Analyzing trace with hash -515643519, now seen corresponding path program 1 times [2024-11-14 04:32:46,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:32:46,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104132062] [2024-11-14 04:32:46,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:32:46,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:32:46,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:32:46,240 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-14 04:32:46,240 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:32:46,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104132062] [2024-11-14 04:32:46,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104132062] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:32:46,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [371110123] [2024-11-14 04:32:46,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:32:46,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:32:46,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:32:46,244 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:32:46,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-14 04:32:46,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:32:46,334 INFO L255 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 04:32:46,336 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:32:46,669 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-14 04:32:46,669 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:32:46,875 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-14 04:32:46,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [371110123] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:32:46,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2087233013] [2024-11-14 04:32:46,876 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-14 04:32:46,877 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:32:46,877 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:32:46,877 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:32:46,877 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:32:56,891 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 04:32:56,892 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:32:56,893 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:33:10,735 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '35503#(exists ((|v_ULTIMATE.start_main_~p~0#1_141| Int) (|v_ULTIMATE.start_main_~q~0#1_204| Int)) (and (<= 1 |ULTIMATE.start_main_~s~0#1|) (<= 0 |ULTIMATE.start_main_~b~0#1|) (<= 1 |#StackHeapBarrier|) (<= (+ |v_ULTIMATE.start_main_~q~0#1_204| 9223372036854775808) |v_ULTIMATE.start_main_~p~0#1_141|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~b~0#1| 19) (<= 1 |ULTIMATE.start_main_~a~0#1|) (<= |ULTIMATE.start_main_~r~0#1| 0) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~a~0#1| 20) (<= |ULTIMATE.start_main_~y~0#1| 20) (<= 1 |v_ULTIMATE.start_main_~p~0#1_141|) (<= |v_ULTIMATE.start_main_~q~0#1_204| 0) (<= |ULTIMATE.start_main_~x~0#1| 20)))' at error location [2024-11-14 04:33:10,735 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:33:10,735 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:33:10,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-14 04:33:10,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909026134] [2024-11-14 04:33:10,736 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 04:33:10,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 04:33:10,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:33:10,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 04:33:10,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=235, Invalid=1657, Unknown=0, NotChecked=0, Total=1892 [2024-11-14 04:33:10,739 INFO L87 Difference]: Start difference. First operand 562 states and 664 transitions. Second operand has 11 states, 10 states have (on average 24.4) internal successors, (244), 11 states have internal predecessors, (244), 10 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 10 states have call predecessors, (31), 10 states have call successors, (31) [2024-11-14 04:33:11,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:33:11,270 INFO L93 Difference]: Finished difference Result 1224 states and 1466 transitions. [2024-11-14 04:33:11,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-14 04:33:11,271 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 24.4) internal successors, (244), 11 states have internal predecessors, (244), 10 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 10 states have call predecessors, (31), 10 states have call successors, (31) Word has length 121 [2024-11-14 04:33:11,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:33:11,273 INFO L225 Difference]: With dead ends: 1224 [2024-11-14 04:33:11,273 INFO L226 Difference]: Without dead ends: 1223 [2024-11-14 04:33:11,274 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 299 SyntacticMatches, 24 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1526 ImplicationChecksByTransitivity, 13.9s TimeCoverageRelationStatistics Valid=269, Invalid=1893, Unknown=0, NotChecked=0, Total=2162 [2024-11-14 04:33:11,275 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 100 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 04:33:11,275 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 272 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 04:33:11,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1223 states. [2024-11-14 04:33:11,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1223 to 1169. [2024-11-14 04:33:11,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1169 states, 1046 states have (on average 1.1367112810707456) internal successors, (1189), 1053 states have internal predecessors, (1189), 113 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2024-11-14 04:33:11,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1169 states to 1169 states and 1415 transitions. [2024-11-14 04:33:11,419 INFO L78 Accepts]: Start accepts. Automaton has 1169 states and 1415 transitions. Word has length 121 [2024-11-14 04:33:11,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:33:11,419 INFO L471 AbstractCegarLoop]: Abstraction has 1169 states and 1415 transitions. [2024-11-14 04:33:11,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 24.4) internal successors, (244), 11 states have internal predecessors, (244), 10 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 10 states have call predecessors, (31), 10 states have call successors, (31) [2024-11-14 04:33:11,420 INFO L276 IsEmpty]: Start isEmpty. Operand 1169 states and 1415 transitions. [2024-11-14 04:33:11,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-14 04:33:11,421 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:33:11,421 INFO L215 NwaCegarLoop]: trace histogram [9, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:33:11,435 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-11-14 04:33:11,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:33:11,622 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 04:33:11,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:33:11,622 INFO L85 PathProgramCache]: Analyzing trace with hash 701900063, now seen corresponding path program 3 times [2024-11-14 04:33:11,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:33:11,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540556365] [2024-11-14 04:33:11,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:33:11,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:33:11,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:33:11,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1342406032] [2024-11-14 04:33:11,652 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 04:33:11,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:33:11,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:33:11,654 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:33:11,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-14 04:33:11,723 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 04:33:11,723 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:33:11,724 INFO L255 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-14 04:33:11,726 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:33:12,521 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 8 proven. 90 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-11-14 04:33:12,521 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:33:13,005 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:33:13,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540556365] [2024-11-14 04:33:13,006 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:33:13,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1342406032] [2024-11-14 04:33:13,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1342406032] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:33:13,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1081099735] [2024-11-14 04:33:13,007 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-14 04:33:13,007 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:33:13,008 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:33:13,008 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:33:13,008 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:33:23,700 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 04:33:23,701 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:33:23,702 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:33:37,390 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '38671#(and (<= |ULTIMATE.start_main_~q~0#1| 0) (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~s~0#1_214| Int) (|v_ULTIMATE.start_main_~p~0#1_148| Int)) (and (<= |v_ULTIMATE.start_main_~p~0#1_148| 9223372036854775807) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~s~0#1_214| |v_ULTIMATE.start_main_~p~0#1_148|)) (<= 1 |v_ULTIMATE.start_main_~p~0#1_148|) (<= |v_ULTIMATE.start_main_~s~0#1_214| 9223372036854775808))) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~q~0#1|)) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= 1 |ULTIMATE.start_main_~a~0#1|) (<= |ULTIMATE.start_main_~r~0#1| 0) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~y~0#1| 20) (<= |ULTIMATE.start_main_~x~0#1| 20))' at error location [2024-11-14 04:33:37,390 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:33:37,390 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:33:37,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-14 04:33:37,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258198251] [2024-11-14 04:33:37,390 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 04:33:37,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-14 04:33:37,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:33:37,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-14 04:33:37,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=318, Invalid=2034, Unknown=0, NotChecked=0, Total=2352 [2024-11-14 04:33:37,392 INFO L87 Difference]: Start difference. First operand 1169 states and 1415 transitions. Second operand has 14 states, 11 states have (on average 8.272727272727273) internal successors, (91), 13 states have internal predecessors, (91), 6 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-14 04:33:38,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:33:38,296 INFO L93 Difference]: Finished difference Result 1212 states and 1463 transitions. [2024-11-14 04:33:38,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-14 04:33:38,296 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 8.272727272727273) internal successors, (91), 13 states have internal predecessors, (91), 6 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) Word has length 126 [2024-11-14 04:33:38,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:33:38,299 INFO L225 Difference]: With dead ends: 1212 [2024-11-14 04:33:38,299 INFO L226 Difference]: Without dead ends: 1211 [2024-11-14 04:33:38,300 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 191 SyntacticMatches, 25 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1909 ImplicationChecksByTransitivity, 14.2s TimeCoverageRelationStatistics Valid=455, Invalid=2967, Unknown=0, NotChecked=0, Total=3422 [2024-11-14 04:33:38,301 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 250 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 04:33:38,301 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 117 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 04:33:38,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1211 states. [2024-11-14 04:33:38,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1211 to 1178. [2024-11-14 04:33:38,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1178 states, 1055 states have (on average 1.1355450236966824) internal successors, (1198), 1062 states have internal predecessors, (1198), 113 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2024-11-14 04:33:38,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1178 states to 1178 states and 1424 transitions. [2024-11-14 04:33:38,468 INFO L78 Accepts]: Start accepts. Automaton has 1178 states and 1424 transitions. Word has length 126 [2024-11-14 04:33:38,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:33:38,468 INFO L471 AbstractCegarLoop]: Abstraction has 1178 states and 1424 transitions. [2024-11-14 04:33:38,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 8.272727272727273) internal successors, (91), 13 states have internal predecessors, (91), 6 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-14 04:33:38,469 INFO L276 IsEmpty]: Start isEmpty. Operand 1178 states and 1424 transitions. [2024-11-14 04:33:38,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-14 04:33:38,470 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:33:38,470 INFO L215 NwaCegarLoop]: trace histogram [9, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:33:38,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-11-14 04:33:38,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:33:38,671 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 04:33:38,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:33:38,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1519716833, now seen corresponding path program 4 times [2024-11-14 04:33:38,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:33:38,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196067849] [2024-11-14 04:33:38,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:33:38,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:33:38,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:33:38,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2084894700] [2024-11-14 04:33:38,701 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-14 04:33:38,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:33:38,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:33:38,703 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:33:38,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-14 04:33:38,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:33:38,797 INFO L255 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-14 04:33:38,803 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:33:39,654 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-14 04:33:39,654 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:33:40,195 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:33:40,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196067849] [2024-11-14 04:33:40,195 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:33:40,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2084894700] [2024-11-14 04:33:40,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2084894700] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:33:40,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [578627146] [2024-11-14 04:33:40,197 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-14 04:33:40,197 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:33:40,197 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:33:40,197 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:33:40,197 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:33:51,590 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 04:33:51,592 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:33:51,593 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:34:10,076 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '41847#(and (<= |ULTIMATE.start_main_~q~0#1| 0) (<= |ULTIMATE.start_main_~b~0#1| 20) (<= 1 |#StackHeapBarrier|) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~q~0#1|)) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= 1 |ULTIMATE.start_main_~a~0#1|) (<= |ULTIMATE.start_main_~r~0#1| 0) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~r~0#1|)) (exists ((|v_ULTIMATE.start_main_~s~0#1_231| Int) (|v_ULTIMATE.start_main_~p~0#1_154| Int)) (and (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~s~0#1_231| |v_ULTIMATE.start_main_~p~0#1_154|)) (<= |v_ULTIMATE.start_main_~s~0#1_231| 9223372036854775808) (<= 1 |v_ULTIMATE.start_main_~p~0#1_154|) (<= |v_ULTIMATE.start_main_~p~0#1_154| 9223372036854775807))) (<= |ULTIMATE.start_main_~y~0#1| 20) (<= |ULTIMATE.start_main_~x~0#1| 20))' at error location [2024-11-14 04:34:10,076 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:34:10,076 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:34:10,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-14 04:34:10,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811220510] [2024-11-14 04:34:10,077 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 04:34:10,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 04:34:10,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:34:10,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 04:34:10,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=223, Invalid=1498, Unknown=1, NotChecked=0, Total=1722 [2024-11-14 04:34:10,078 INFO L87 Difference]: Start difference. First operand 1178 states and 1424 transitions. Second operand has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 7 states have internal predecessors, (89), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-14 04:34:10,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:34:10,663 INFO L93 Difference]: Finished difference Result 1185 states and 1428 transitions. [2024-11-14 04:34:10,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 04:34:10,664 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 7 states have internal predecessors, (89), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 126 [2024-11-14 04:34:10,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:34:10,667 INFO L225 Difference]: With dead ends: 1185 [2024-11-14 04:34:10,667 INFO L226 Difference]: Without dead ends: 1184 [2024-11-14 04:34:10,668 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 198 SyntacticMatches, 25 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1038 ImplicationChecksByTransitivity, 18.7s TimeCoverageRelationStatistics Valid=223, Invalid=1498, Unknown=1, NotChecked=0, Total=1722 [2024-11-14 04:34:10,668 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 43 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 04:34:10,669 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 270 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 04:34:10,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1184 states. [2024-11-14 04:34:10,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1184 to 1178. [2024-11-14 04:34:10,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1178 states, 1055 states have (on average 1.1345971563981043) internal successors, (1197), 1062 states have internal predecessors, (1197), 113 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2024-11-14 04:34:10,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1178 states to 1178 states and 1423 transitions. [2024-11-14 04:34:10,812 INFO L78 Accepts]: Start accepts. Automaton has 1178 states and 1423 transitions. Word has length 126 [2024-11-14 04:34:10,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:34:10,812 INFO L471 AbstractCegarLoop]: Abstraction has 1178 states and 1423 transitions. [2024-11-14 04:34:10,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 7 states have internal predecessors, (89), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-14 04:34:10,813 INFO L276 IsEmpty]: Start isEmpty. Operand 1178 states and 1423 transitions. [2024-11-14 04:34:10,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-14 04:34:10,813 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:34:10,814 INFO L215 NwaCegarLoop]: trace histogram [9, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:34:10,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2024-11-14 04:34:11,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:34:11,014 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 04:34:11,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:34:11,015 INFO L85 PathProgramCache]: Analyzing trace with hash -2112781395, now seen corresponding path program 5 times [2024-11-14 04:34:11,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:34:11,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628269064] [2024-11-14 04:34:11,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:34:11,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:34:11,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:34:11,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1075052120] [2024-11-14 04:34:11,042 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 04:34:11,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:34:11,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:34:11,048 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:34:11,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-14 04:34:11,150 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-14 04:34:11,150 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:34:11,156 INFO L255 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-14 04:34:11,159 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:34:11,633 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 6 proven. 65 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-14 04:34:11,633 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:34:12,217 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:34:12,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628269064] [2024-11-14 04:34:12,217 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:34:12,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1075052120] [2024-11-14 04:34:12,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1075052120] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:34:12,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1689531165] [2024-11-14 04:34:12,218 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-14 04:34:12,218 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:34:12,219 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:34:12,219 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:34:12,219 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:34:23,518 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 04:34:23,519 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:34:23,521 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:34:40,413 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '44974#(and (<= 0 |ULTIMATE.start_main_~b~0#1|) (<= |ULTIMATE.start_main_~q~0#1| 0) (<= |ULTIMATE.start_main_~b~0#1| 20) (<= 1 |#StackHeapBarrier|) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~q~0#1|)) (<= 1 |ULTIMATE.start_main_~y~0#1|) (exists ((|v_ULTIMATE.start_main_~p~0#1_162| Int) (|v_ULTIMATE.start_main_~s~0#1_245| Int)) (and (<= 1 |v_ULTIMATE.start_main_~s~0#1_245|) (<= |v_ULTIMATE.start_main_~p~0#1_162| 9223372036854775807) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~s~0#1_245| |v_ULTIMATE.start_main_~p~0#1_162|)) (<= |v_ULTIMATE.start_main_~s~0#1_245| 9223372036854775808))) (<= 1 |ULTIMATE.start_main_~a~0#1|) (<= |ULTIMATE.start_main_~r~0#1| 0) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~a~0#1| 20) (<= |ULTIMATE.start_main_~y~0#1| 20) (<= |ULTIMATE.start_main_~x~0#1| 20))' at error location [2024-11-14 04:34:40,414 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:34:40,414 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:34:40,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-14 04:34:40,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75646633] [2024-11-14 04:34:40,414 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 04:34:40,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 04:34:40,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:34:40,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 04:34:40,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=220, Invalid=1502, Unknown=0, NotChecked=0, Total=1722 [2024-11-14 04:34:40,416 INFO L87 Difference]: Start difference. First operand 1178 states and 1423 transitions. Second operand has 8 states, 6 states have (on average 11.666666666666666) internal successors, (70), 8 states have internal predecessors, (70), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-14 04:34:41,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:34:41,053 INFO L93 Difference]: Finished difference Result 1294 states and 1564 transitions. [2024-11-14 04:34:41,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 04:34:41,053 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 11.666666666666666) internal successors, (70), 8 states have internal predecessors, (70), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) Word has length 126 [2024-11-14 04:34:41,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:34:41,058 INFO L225 Difference]: With dead ends: 1294 [2024-11-14 04:34:41,058 INFO L226 Difference]: Without dead ends: 1292 [2024-11-14 04:34:41,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 198 SyntacticMatches, 25 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1052 ImplicationChecksByTransitivity, 17.1s TimeCoverageRelationStatistics Valid=250, Invalid=1820, Unknown=0, NotChecked=0, Total=2070 [2024-11-14 04:34:41,060 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 188 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 04:34:41,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 213 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 04:34:41,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1292 states. [2024-11-14 04:34:41,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1292 to 1268. [2024-11-14 04:34:41,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1268 states, 1136 states have (on average 1.1338028169014085) internal successors, (1288), 1143 states have internal predecessors, (1288), 122 states have call successors, (122), 2 states have call predecessors, (122), 2 states have return successors, (122), 122 states have call predecessors, (122), 122 states have call successors, (122) [2024-11-14 04:34:41,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1268 states to 1268 states and 1532 transitions. [2024-11-14 04:34:41,301 INFO L78 Accepts]: Start accepts. Automaton has 1268 states and 1532 transitions. Word has length 126 [2024-11-14 04:34:41,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:34:41,302 INFO L471 AbstractCegarLoop]: Abstraction has 1268 states and 1532 transitions. [2024-11-14 04:34:41,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 11.666666666666666) internal successors, (70), 8 states have internal predecessors, (70), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-14 04:34:41,302 INFO L276 IsEmpty]: Start isEmpty. Operand 1268 states and 1532 transitions. [2024-11-14 04:34:41,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-14 04:34:41,303 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:34:41,303 INFO L215 NwaCegarLoop]: trace histogram [9, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:34:41,318 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-11-14 04:34:41,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-14 04:34:41,504 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 04:34:41,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:34:41,504 INFO L85 PathProgramCache]: Analyzing trace with hash -950938451, now seen corresponding path program 6 times [2024-11-14 04:34:41,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:34:41,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737461994] [2024-11-14 04:34:41,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:34:41,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:34:41,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:34:41,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1701433550] [2024-11-14 04:34:41,561 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 04:34:41,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:34:41,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:34:41,564 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:34:41,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-14 04:34:41,780 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 04:34:41,780 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:34:41,782 INFO L255 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-14 04:34:41,784 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:34:44,435 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 8 proven. 87 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-14 04:34:44,435 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:34:45,284 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:34:45,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737461994] [2024-11-14 04:34:45,284 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:34:45,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1701433550] [2024-11-14 04:34:45,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1701433550] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:34:45,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1143467012] [2024-11-14 04:34:45,286 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-14 04:34:45,286 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:34:45,286 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:34:45,286 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:34:45,286 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:34:56,693 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 04:34:56,694 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:34:56,694 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:35:16,783 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '48339#(and (<= |ULTIMATE.start_main_~q~0#1| 0) (<= |ULTIMATE.start_main_~b~0#1| 20) (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~s~0#1_262| Int) (|v_ULTIMATE.start_main_~p~0#1_170| Int)) (and (<= 1 |v_ULTIMATE.start_main_~s~0#1_262|) (<= |v_ULTIMATE.start_main_~s~0#1_262| 9223372036854775808) (<= |v_ULTIMATE.start_main_~p~0#1_170| 9223372036854775807) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~s~0#1_262| |v_ULTIMATE.start_main_~p~0#1_170|)))) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~q~0#1|)) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= 1 |ULTIMATE.start_main_~a~0#1|) (<= |ULTIMATE.start_main_~r~0#1| 0) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~y~0#1| 20) (<= |ULTIMATE.start_main_~x~0#1| 20))' at error location [2024-11-14 04:35:16,783 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:35:16,783 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:35:16,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-14 04:35:16,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719999761] [2024-11-14 04:35:16,783 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 04:35:16,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-14 04:35:16,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:35:16,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-14 04:35:16,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=250, Invalid=2199, Unknown=1, NotChecked=0, Total=2450 [2024-11-14 04:35:16,785 INFO L87 Difference]: Start difference. First operand 1268 states and 1532 transitions. Second operand has 14 states, 12 states have (on average 7.5) internal successors, (90), 14 states have internal predecessors, (90), 4 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-14 04:35:23,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:35:28,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:35:28,461 INFO L93 Difference]: Finished difference Result 1272 states and 1533 transitions. [2024-11-14 04:35:28,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-14 04:35:28,462 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 7.5) internal successors, (90), 14 states have internal predecessors, (90), 4 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) Word has length 126 [2024-11-14 04:35:28,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:35:28,465 INFO L225 Difference]: With dead ends: 1272 [2024-11-14 04:35:28,465 INFO L226 Difference]: Without dead ends: 1271 [2024-11-14 04:35:28,466 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 190 SyntacticMatches, 25 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1310 ImplicationChecksByTransitivity, 23.9s TimeCoverageRelationStatistics Valid=279, Invalid=2475, Unknown=2, NotChecked=0, Total=2756 [2024-11-14 04:35:28,467 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 74 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 1315 mSolverCounterSat, 9 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 1330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1315 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:35:28,467 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 281 Invalid, 1330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1315 Invalid, 6 Unknown, 0 Unchecked, 9.1s Time] [2024-11-14 04:35:28,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1271 states. [2024-11-14 04:35:28,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1271 to 1268. [2024-11-14 04:35:28,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1268 states, 1136 states have (on average 1.1329225352112675) internal successors, (1287), 1143 states have internal predecessors, (1287), 122 states have call successors, (122), 2 states have call predecessors, (122), 2 states have return successors, (122), 122 states have call predecessors, (122), 122 states have call successors, (122) [2024-11-14 04:35:28,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1268 states to 1268 states and 1531 transitions. [2024-11-14 04:35:28,681 INFO L78 Accepts]: Start accepts. Automaton has 1268 states and 1531 transitions. Word has length 126 [2024-11-14 04:35:28,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:35:28,681 INFO L471 AbstractCegarLoop]: Abstraction has 1268 states and 1531 transitions. [2024-11-14 04:35:28,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 7.5) internal successors, (90), 14 states have internal predecessors, (90), 4 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-14 04:35:28,681 INFO L276 IsEmpty]: Start isEmpty. Operand 1268 states and 1531 transitions. [2024-11-14 04:35:28,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-14 04:35:28,682 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:35:28,682 INFO L215 NwaCegarLoop]: trace histogram [9, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:35:28,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2024-11-14 04:35:28,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-14 04:35:28,883 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 04:35:28,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:35:28,883 INFO L85 PathProgramCache]: Analyzing trace with hash -158994207, now seen corresponding path program 3 times [2024-11-14 04:35:28,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:35:28,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320894692] [2024-11-14 04:35:28,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:35:28,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:35:28,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:35:28,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1459128229] [2024-11-14 04:35:28,911 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 04:35:28,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:35:28,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:35:28,914 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:35:28,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-14 04:35:29,021 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 04:35:29,021 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:35:29,023 INFO L255 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-14 04:35:29,026 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:35:29,988 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-14 04:35:29,989 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:35:32,406 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-14 04:35:32,407 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:35:32,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320894692] [2024-11-14 04:35:32,407 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:35:32,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1459128229] [2024-11-14 04:35:32,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1459128229] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:35:32,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [717596520] [2024-11-14 04:35:32,408 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-14 04:35:32,408 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:35:32,408 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:35:32,409 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:35:32,409 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:35:43,593 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 04:35:43,594 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:35:43,595 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:36:02,761 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '52025#(and (<= 1 |ULTIMATE.start_main_~s~0#1|) (<= 0 |ULTIMATE.start_main_~b~0#1|) (<= 1 |ULTIMATE.start_main_~p~0#1|) (<= |ULTIMATE.start_main_~b~0#1| 20) (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= 1 |ULTIMATE.start_main_~a~0#1|) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~a~0#1| 20) (<= |ULTIMATE.start_main_~y~0#1| 20) (<= (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~s~0#1|) 9223372036854775807) (<= |ULTIMATE.start_main_~x~0#1| 20) (exists ((|v_ULTIMATE.start_main_~q~0#1_282| Int) (|v_ULTIMATE.start_main_~r~0#1_171| Int)) (and (<= |v_ULTIMATE.start_main_~q~0#1_282| 0) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_282| 9223372036854775808)) (<= 0 (+ 9223372036854775808 |v_ULTIMATE.start_main_~r~0#1_171|)) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_282| |v_ULTIMATE.start_main_~r~0#1_171|)))))' at error location [2024-11-14 04:36:02,761 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:36:02,761 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 04:36:02,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 12 [2024-11-14 04:36:02,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296285191] [2024-11-14 04:36:02,762 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 04:36:02,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-14 04:36:02,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:36:02,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-14 04:36:02,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=1842, Unknown=0, NotChecked=0, Total=2070 [2024-11-14 04:36:02,764 INFO L87 Difference]: Start difference. First operand 1268 states and 1531 transitions. Second operand has 13 states, 12 states have (on average 14.833333333333334) internal successors, (178), 13 states have internal predecessors, (178), 7 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) [2024-11-14 04:36:06,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 04:36:08,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 04:36:17,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 04:36:19,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 04:36:24,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:36:24,345 INFO L93 Difference]: Finished difference Result 1336 states and 1610 transitions. [2024-11-14 04:36:24,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-14 04:36:24,346 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 14.833333333333334) internal successors, (178), 13 states have internal predecessors, (178), 7 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) Word has length 128 [2024-11-14 04:36:24,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:36:24,349 INFO L225 Difference]: With dead ends: 1336 [2024-11-14 04:36:24,349 INFO L226 Difference]: Without dead ends: 1335 [2024-11-14 04:36:24,350 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 312 SyntacticMatches, 26 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1514 ImplicationChecksByTransitivity, 22.6s TimeCoverageRelationStatistics Valid=351, Invalid=2841, Unknown=0, NotChecked=0, Total=3192 [2024-11-14 04:36:24,351 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 294 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 905 mSolverCounterSat, 48 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 905 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.7s IncrementalHoareTripleChecker+Time [2024-11-14 04:36:24,351 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 404 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 905 Invalid, 1 Unknown, 0 Unchecked, 18.7s Time] [2024-11-14 04:36:24,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1335 states. [2024-11-14 04:36:24,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1335 to 1330. [2024-11-14 04:36:24,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1330 states, 1195 states have (on average 1.1288702928870293) internal successors, (1349), 1202 states have internal predecessors, (1349), 125 states have call successors, (125), 2 states have call predecessors, (125), 2 states have return successors, (125), 125 states have call predecessors, (125), 125 states have call successors, (125) [2024-11-14 04:36:24,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1330 states to 1330 states and 1599 transitions. [2024-11-14 04:36:24,526 INFO L78 Accepts]: Start accepts. Automaton has 1330 states and 1599 transitions. Word has length 128 [2024-11-14 04:36:24,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:36:24,526 INFO L471 AbstractCegarLoop]: Abstraction has 1330 states and 1599 transitions. [2024-11-14 04:36:24,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 14.833333333333334) internal successors, (178), 13 states have internal predecessors, (178), 7 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) [2024-11-14 04:36:24,526 INFO L276 IsEmpty]: Start isEmpty. Operand 1330 states and 1599 transitions. [2024-11-14 04:36:24,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-14 04:36:24,527 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:36:24,527 INFO L215 NwaCegarLoop]: trace histogram [9, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:36:24,553 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-11-14 04:36:24,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-14 04:36:24,728 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 04:36:24,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:36:24,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1136612079, now seen corresponding path program 4 times [2024-11-14 04:36:24,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:36:24,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112156545] [2024-11-14 04:36:24,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:36:24,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:36:24,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:36:24,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [110419171] [2024-11-14 04:36:24,793 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-14 04:36:24,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:36:24,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:36:24,795 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:36:24,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-14 04:36:24,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:36:24,888 INFO L255 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-14 04:36:24,890 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:36:25,823 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-14 04:36:25,824 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:36:28,561 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:36:28,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112156545] [2024-11-14 04:36:28,561 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:36:28,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [110419171] [2024-11-14 04:36:28,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [110419171] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:36:28,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1640272666] [2024-11-14 04:36:28,563 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-14 04:36:28,563 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:36:28,564 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:36:28,564 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:36:28,564 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:36:39,149 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 04:36:39,150 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:36:39,151 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:36:52,678 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '55526#(and (<= 1 |ULTIMATE.start_main_~s~0#1|) (<= 1 |ULTIMATE.start_main_~p~0#1|) (<= |ULTIMATE.start_main_~b~0#1| 20) (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (exists ((|v_ULTIMATE.start_main_~r~0#1_179| Int) (|v_ULTIMATE.start_main_~q~0#1_297| Int)) (and (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_297| 9223372036854775808)) (<= 0 (+ 9223372036854775808 |v_ULTIMATE.start_main_~r~0#1_179|)) (<= |v_ULTIMATE.start_main_~q~0#1_297| 0) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_297| |v_ULTIMATE.start_main_~r~0#1_179|)))) (<= 1 |ULTIMATE.start_main_~a~0#1|) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 20) (<= (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~s~0#1|) 9223372036854775807) (<= |ULTIMATE.start_main_~x~0#1| 20))' at error location [2024-11-14 04:36:52,679 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:36:52,679 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:36:52,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-14 04:36:52,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438475925] [2024-11-14 04:36:52,679 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 04:36:52,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 04:36:52,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:36:52,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 04:36:52,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=1512, Unknown=1, NotChecked=0, Total=1722 [2024-11-14 04:36:52,680 INFO L87 Difference]: Start difference. First operand 1330 states and 1599 transitions. Second operand has 7 states, 6 states have (on average 15.166666666666666) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-14 04:36:53,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:36:53,433 INFO L93 Difference]: Finished difference Result 1332 states and 1599 transitions. [2024-11-14 04:36:53,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 04:36:53,433 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.166666666666666) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 128 [2024-11-14 04:36:53,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:36:53,440 INFO L225 Difference]: With dead ends: 1332 [2024-11-14 04:36:53,440 INFO L226 Difference]: Without dead ends: 1331 [2024-11-14 04:36:53,441 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 203 SyntacticMatches, 26 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1019 ImplicationChecksByTransitivity, 15.7s TimeCoverageRelationStatistics Valid=209, Invalid=1512, Unknown=1, NotChecked=0, Total=1722 [2024-11-14 04:36:53,442 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 48 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 04:36:53,442 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 185 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 04:36:53,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1331 states. [2024-11-14 04:36:53,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1331 to 1330. [2024-11-14 04:36:53,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1330 states, 1195 states have (on average 1.1280334728033472) internal successors, (1348), 1202 states have internal predecessors, (1348), 125 states have call successors, (125), 2 states have call predecessors, (125), 2 states have return successors, (125), 125 states have call predecessors, (125), 125 states have call successors, (125) [2024-11-14 04:36:53,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1330 states to 1330 states and 1598 transitions. [2024-11-14 04:36:53,613 INFO L78 Accepts]: Start accepts. Automaton has 1330 states and 1598 transitions. Word has length 128 [2024-11-14 04:36:53,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:36:53,614 INFO L471 AbstractCegarLoop]: Abstraction has 1330 states and 1598 transitions. [2024-11-14 04:36:53,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.166666666666666) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-14 04:36:53,614 INFO L276 IsEmpty]: Start isEmpty. Operand 1330 states and 1598 transitions. [2024-11-14 04:36:53,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-14 04:36:53,615 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:36:53,615 INFO L215 NwaCegarLoop]: trace histogram [9, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:36:53,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2024-11-14 04:36:53,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-14 04:36:53,816 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 04:36:53,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:36:53,816 INFO L85 PathProgramCache]: Analyzing trace with hash -319421983, now seen corresponding path program 5 times [2024-11-14 04:36:53,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:36:53,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261483422] [2024-11-14 04:36:53,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:36:53,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:36:53,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:36:53,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [306326427] [2024-11-14 04:36:53,851 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 04:36:53,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:36:53,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:36:53,854 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:36:53,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-14 04:36:53,965 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-14 04:36:53,965 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:36:53,966 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-14 04:36:53,970 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:37:07,285 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 67 proven. 4 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-14 04:37:07,285 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:37:08,861 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 59 proven. 2 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-14 04:37:08,861 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:37:08,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261483422] [2024-11-14 04:37:08,862 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:37:08,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [306326427] [2024-11-14 04:37:08,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [306326427] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:37:08,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [255696669] [2024-11-14 04:37:08,863 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-14 04:37:08,864 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:37:08,864 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:37:08,864 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:37:08,864 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:37:19,009 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 04:37:19,010 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:37:19,011 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:38:07,934 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '59344#(and (<= 1 |ULTIMATE.start_main_~s~0#1|) (<= 0 |ULTIMATE.start_main_~b~0#1|) (<= 1 |ULTIMATE.start_main_~p~0#1|) (<= |ULTIMATE.start_main_~b~0#1| 20) (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~q~0#1_315| Int) (|v_ULTIMATE.start_main_~r~0#1_186| Int)) (and (<= |v_ULTIMATE.start_main_~r~0#1_186| 0) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_315| 9223372036854775808)) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_315| |v_ULTIMATE.start_main_~r~0#1_186|)) (<= 0 (+ 9223372036854775808 |v_ULTIMATE.start_main_~r~0#1_186|)))) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= 1 |ULTIMATE.start_main_~a~0#1|) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~a~0#1| 20) (<= |ULTIMATE.start_main_~y~0#1| 20) (<= (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~s~0#1|) 9223372036854775807) (<= |ULTIMATE.start_main_~x~0#1| 20))' at error location [2024-11-14 04:38:07,934 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:38:07,934 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 04:38:07,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 12 [2024-11-14 04:38:07,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288412157] [2024-11-14 04:38:07,934 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 04:38:07,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-14 04:38:07,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:38:07,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-14 04:38:07,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=235, Invalid=1740, Unknown=5, NotChecked=0, Total=1980 [2024-11-14 04:38:07,936 INFO L87 Difference]: Start difference. First operand 1330 states and 1598 transitions. Second operand has 13 states, 11 states have (on average 8.636363636363637) internal successors, (95), 13 states have internal predecessors, (95), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-14 04:38:12,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:38:14,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:38:16,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:38:18,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:38:20,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:38:22,341 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:38:24,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:38:26,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:38:28,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:38:30,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:38:32,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:38:34,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:38:36,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:38:38,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:38:40,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:38:42,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:38:44,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:38:46,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:38:48,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:38:50,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:38:52,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:38:54,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:38:56,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:38:58,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:39:00,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:39:02,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:39:04,670 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:39:06,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:39:08,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:39:11,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:39:15,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:39:18,115 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 04:39:18,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:39:18,779 INFO L93 Difference]: Finished difference Result 1368 states and 1642 transitions. [2024-11-14 04:39:18,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-14 04:39:18,780 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 8.636363636363637) internal successors, (95), 13 states have internal predecessors, (95), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 128 [2024-11-14 04:39:18,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:39:18,785 INFO L225 Difference]: With dead ends: 1368 [2024-11-14 04:39:18,785 INFO L226 Difference]: Without dead ends: 1367 [2024-11-14 04:39:18,786 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 313 SyntacticMatches, 26 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1392 ImplicationChecksByTransitivity, 63.8s TimeCoverageRelationStatistics Valid=283, Invalid=2064, Unknown=5, NotChecked=0, Total=2352 [2024-11-14 04:39:18,786 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 206 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 35 mSolverCounterUnsat, 32 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 67.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 32 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 67.8s IncrementalHoareTripleChecker+Time [2024-11-14 04:39:18,786 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 147 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 266 Invalid, 32 Unknown, 0 Unchecked, 67.8s Time] [2024-11-14 04:39:18,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1367 states. [2024-11-14 04:39:18,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1367 to 1268. [2024-11-14 04:39:18,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1268 states, 1136 states have (on average 1.118838028169014) internal successors, (1271), 1143 states have internal predecessors, (1271), 122 states have call successors, (122), 2 states have call predecessors, (122), 2 states have return successors, (122), 122 states have call predecessors, (122), 122 states have call successors, (122) [2024-11-14 04:39:18,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1268 states to 1268 states and 1515 transitions. [2024-11-14 04:39:18,966 INFO L78 Accepts]: Start accepts. Automaton has 1268 states and 1515 transitions. Word has length 128 [2024-11-14 04:39:18,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:39:18,966 INFO L471 AbstractCegarLoop]: Abstraction has 1268 states and 1515 transitions. [2024-11-14 04:39:18,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 8.636363636363637) internal successors, (95), 13 states have internal predecessors, (95), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-14 04:39:18,967 INFO L276 IsEmpty]: Start isEmpty. Operand 1268 states and 1515 transitions. [2024-11-14 04:39:18,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-14 04:39:18,968 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:39:18,968 INFO L215 NwaCegarLoop]: trace histogram [9, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:39:18,993 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2024-11-14 04:39:19,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:39:19,172 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-14 04:39:19,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:39:19,173 INFO L85 PathProgramCache]: Analyzing trace with hash 976184303, now seen corresponding path program 6 times [2024-11-14 04:39:19,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:39:19,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148481104] [2024-11-14 04:39:19,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:39:19,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:39:19,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:39:19,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [97489703] [2024-11-14 04:39:19,208 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 04:39:19,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:39:19,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:39:19,214 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:39:19,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddfc1bd-ab50-48a6-b7ed-6b38631cca01/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-14 04:39:19,494 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 04:39:19,495 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:39:19,496 INFO L255 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-14 04:39:19,500 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:39:23,590 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 8 proven. 93 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-14 04:39:23,590 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:39:24,493 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:39:24,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148481104] [2024-11-14 04:39:24,494 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:39:24,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [97489703] [2024-11-14 04:39:24,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [97489703] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:39:24,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1311365712] [2024-11-14 04:39:24,495 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-14 04:39:24,495 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:39:24,495 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:39:24,496 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:39:24,496 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs