./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/bresenham-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_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/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_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/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_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/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 cb384ff5c9201b9f90543357d3375f0a0ac9cc5fac01729f538d89799a1d7226 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:21:02,854 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:21:02,914 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-14 05:21:02,919 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:21:02,919 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:21:02,945 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:21:02,946 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:21:02,946 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:21:02,946 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:21:02,946 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:21:02,947 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:21:02,947 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:21:02,947 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:21:02,947 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:21:02,947 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:21:02,947 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:21:02,947 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:21:02,948 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:21:02,948 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:21:02,948 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:21:02,948 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:21:02,948 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:21:02,949 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:21:02,949 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:21:02,949 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:21:02,949 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:21:02,949 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:21:02,949 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:21:02,949 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:21:02,950 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:21:02,950 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:21:02,950 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:21:02,950 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 05:21:02,950 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 05:21:02,950 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:21:02,950 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:21:02,950 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:21:02,951 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:21:02,951 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:21:02,951 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:21:02,951 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:21:02,951 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:21:02,951 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:21:02,951 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:21:02,952 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:21:02,952 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:21:02,952 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:21:02,952 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:21:02,952 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:21:02,952 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_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/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 -> cb384ff5c9201b9f90543357d3375f0a0ac9cc5fac01729f538d89799a1d7226 [2024-11-14 05:21:03,276 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:21:03,288 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:21:03,290 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:21:03,291 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:21:03,291 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:21:03,292 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound20.c Unable to find full path for "g++" [2024-11-14 05:21:05,195 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:21:05,437 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:21:05,437 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound20.c [2024-11-14 05:21:05,444 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/data/44042796b/e86ba12c353e431abc46ee31ae3f800b/FLAG2f7dfb2a5 [2024-11-14 05:21:05,774 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/data/44042796b/e86ba12c353e431abc46ee31ae3f800b [2024-11-14 05:21:05,775 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:21:05,777 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:21:05,778 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:21:05,778 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:21:05,782 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:21:05,782 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:21:05" (1/1) ... [2024-11-14 05:21:05,783 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@451ebd27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:21:05, skipping insertion in model container [2024-11-14 05:21:05,783 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:21:05" (1/1) ... [2024-11-14 05:21:05,797 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:21:05,997 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:21:06,011 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:21:06,039 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:21:06,056 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:21:06,057 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:21:06 WrapperNode [2024-11-14 05:21:06,058 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:21:06,059 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:21:06,059 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:21:06,060 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:21:06,066 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:21:06" (1/1) ... [2024-11-14 05:21:06,072 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:21:06" (1/1) ... [2024-11-14 05:21:06,095 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 115 [2024-11-14 05:21:06,099 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:21:06,100 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:21:06,100 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:21:06,100 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:21:06,108 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:21:06" (1/1) ... [2024-11-14 05:21:06,108 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:21:06" (1/1) ... [2024-11-14 05:21:06,110 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:21:06" (1/1) ... [2024-11-14 05:21:06,110 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:21:06" (1/1) ... [2024-11-14 05:21:06,114 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:21:06" (1/1) ... [2024-11-14 05:21:06,117 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:21:06" (1/1) ... [2024-11-14 05:21:06,118 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:21:06" (1/1) ... [2024-11-14 05:21:06,119 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:21:06" (1/1) ... [2024-11-14 05:21:06,121 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:21:06,122 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:21:06,122 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:21:06,122 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:21:06,123 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:21:06" (1/1) ... [2024-11-14 05:21:06,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:21:06,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:21:06,158 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:21:06,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:21:06,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:21:06,192 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 05:21:06,192 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 05:21:06,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:21:06,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:21:06,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:21:06,192 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-14 05:21:06,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-14 05:21:06,261 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:21:06,263 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:21:06,742 INFO L? ?]: Removed 136 outVars from TransFormulas that were not future-live. [2024-11-14 05:21:06,743 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:21:06,785 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:21:06,785 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 05:21:06,785 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:21:06 BoogieIcfgContainer [2024-11-14 05:21:06,786 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:21:06,788 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:21:06,788 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:21:06,794 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:21:06,794 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:21:05" (1/3) ... [2024-11-14 05:21:06,794 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c3c5b51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:21:06, skipping insertion in model container [2024-11-14 05:21:06,794 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:21:06" (2/3) ... [2024-11-14 05:21:06,795 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c3c5b51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:21:06, skipping insertion in model container [2024-11-14 05:21:06,795 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:21:06" (3/3) ... [2024-11-14 05:21:06,796 INFO L112 eAbstractionObserver]: Analyzing ICFG bresenham-ll_valuebound20.c [2024-11-14 05:21:06,812 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:21:06,813 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG bresenham-ll_valuebound20.c that has 3 procedures, 132 locations, 1 initial locations, 1 loop locations, and 58 error locations. [2024-11-14 05:21:06,868 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:21:06,883 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;@1748aaa5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:21:06,883 INFO L334 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2024-11-14 05:21:06,887 INFO L276 IsEmpty]: Start isEmpty. Operand has 132 states, 67 states have (on average 1.9104477611940298) internal successors, (128), 125 states have internal predecessors, (128), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-14 05:21:06,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-14 05:21:06,894 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:21:06,894 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:21:06,895 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:21:06,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:21:06,900 INFO L85 PathProgramCache]: Analyzing trace with hash -162689438, now seen corresponding path program 1 times [2024-11-14 05:21:06,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:21:06,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030950374] [2024-11-14 05:21:06,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:06,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:21:06,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:21:07,065 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:21:07,065 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:21:07,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030950374] [2024-11-14 05:21:07,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030950374] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:21:07,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:21:07,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:21:07,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651695331] [2024-11-14 05:21:07,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:21:07,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:21:07,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:21:07,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:21:07,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:21:07,113 INFO L87 Difference]: Start difference. First operand has 132 states, 67 states have (on average 1.9104477611940298) internal successors, (128), 125 states have internal predecessors, (128), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 05:21:07,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:21:07,439 INFO L93 Difference]: Finished difference Result 180 states and 184 transitions. [2024-11-14 05:21:07,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:21:07,441 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 9 [2024-11-14 05:21:07,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:21:07,453 INFO L225 Difference]: With dead ends: 180 [2024-11-14 05:21:07,454 INFO L226 Difference]: Without dead ends: 125 [2024-11-14 05:21:07,457 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 05:21:07,462 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 90 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:21:07,464 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 72 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 05:21:07,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-11-14 05:21:07,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2024-11-14 05:21:07,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 66 states have (on average 1.8333333333333333) internal successors, (121), 119 states have internal predecessors, (121), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 05:21:07,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 127 transitions. [2024-11-14 05:21:07,520 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 127 transitions. Word has length 9 [2024-11-14 05:21:07,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:21:07,523 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 127 transitions. [2024-11-14 05:21:07,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 05:21:07,523 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 127 transitions. [2024-11-14 05:21:07,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-14 05:21:07,525 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:21:07,525 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:21:07,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 05:21:07,526 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:21:07,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:21:07,528 INFO L85 PathProgramCache]: Analyzing trace with hash -748405243, now seen corresponding path program 1 times [2024-11-14 05:21:07,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:21:07,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86335573] [2024-11-14 05:21:07,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:07,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:21:07,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:21:07,601 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:21:07,601 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:21:07,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86335573] [2024-11-14 05:21:07,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86335573] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:21:07,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:21:07,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:21:07,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169202765] [2024-11-14 05:21:07,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:21:07,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:21:07,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:21:07,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:21:07,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:21:07,604 INFO L87 Difference]: Start difference. First operand 125 states and 127 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 05:21:07,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:21:07,779 INFO L93 Difference]: Finished difference Result 125 states and 127 transitions. [2024-11-14 05:21:07,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:21:07,780 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 10 [2024-11-14 05:21:07,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:21:07,781 INFO L225 Difference]: With dead ends: 125 [2024-11-14 05:21:07,781 INFO L226 Difference]: Without dead ends: 121 [2024-11-14 05:21:07,781 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 05:21:07,782 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 88 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:21:07,782 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 69 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:21:07,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-11-14 05:21:07,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2024-11-14 05:21:07,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 66 states have (on average 1.7727272727272727) internal successors, (117), 115 states have internal predecessors, (117), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 05:21:07,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 123 transitions. [2024-11-14 05:21:07,801 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 123 transitions. Word has length 10 [2024-11-14 05:21:07,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:21:07,801 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 123 transitions. [2024-11-14 05:21:07,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 05:21:07,801 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 123 transitions. [2024-11-14 05:21:07,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-14 05:21:07,802 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:21:07,802 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:21:07,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 05:21:07,802 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:21:07,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:21:07,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1725726012, now seen corresponding path program 1 times [2024-11-14 05:21:07,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:21:07,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993386712] [2024-11-14 05:21:07,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:07,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:21:07,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:21:07,885 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:21:07,885 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:21:07,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993386712] [2024-11-14 05:21:07,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993386712] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:21:07,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:21:07,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:21:07,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376419958] [2024-11-14 05:21:07,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:21:07,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:21:07,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:21:07,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:21:07,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:21:07,887 INFO L87 Difference]: Start difference. First operand 121 states and 123 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 05:21:08,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:21:08,199 INFO L93 Difference]: Finished difference Result 121 states and 123 transitions. [2024-11-14 05:21:08,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:21:08,199 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 11 [2024-11-14 05:21:08,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:21:08,200 INFO L225 Difference]: With dead ends: 121 [2024-11-14 05:21:08,201 INFO L226 Difference]: Without dead ends: 118 [2024-11-14 05:21:08,201 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:21:08,202 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 171 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:21:08,202 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 57 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 05:21:08,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-14 05:21:08,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2024-11-14 05:21:08,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 66 states have (on average 1.7272727272727273) internal successors, (114), 112 states have internal predecessors, (114), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 05:21:08,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 120 transitions. [2024-11-14 05:21:08,211 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 120 transitions. Word has length 11 [2024-11-14 05:21:08,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:21:08,212 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 120 transitions. [2024-11-14 05:21:08,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 05:21:08,212 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 120 transitions. [2024-11-14 05:21:08,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-14 05:21:08,212 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:21:08,213 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:21:08,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 05:21:08,213 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:21:08,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:21:08,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1957898777, now seen corresponding path program 1 times [2024-11-14 05:21:08,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:21:08,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962539529] [2024-11-14 05:21:08,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:08,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:21:08,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:21:08,270 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:21:08,271 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:21:08,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962539529] [2024-11-14 05:21:08,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962539529] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:21:08,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:21:08,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:21:08,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012373682] [2024-11-14 05:21:08,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:21:08,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:21:08,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:21:08,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:21:08,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:21:08,273 INFO L87 Difference]: Start difference. First operand 118 states and 120 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 05:21:08,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:21:08,516 INFO L93 Difference]: Finished difference Result 118 states and 120 transitions. [2024-11-14 05:21:08,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:21:08,516 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 12 [2024-11-14 05:21:08,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:21:08,517 INFO L225 Difference]: With dead ends: 118 [2024-11-14 05:21:08,517 INFO L226 Difference]: Without dead ends: 115 [2024-11-14 05:21:08,518 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:21:08,518 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 170 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:21:08,519 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 57 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:21:08,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-14 05:21:08,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2024-11-14 05:21:08,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 66 states have (on average 1.6818181818181819) internal successors, (111), 109 states have internal predecessors, (111), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 05:21:08,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 117 transitions. [2024-11-14 05:21:08,532 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 117 transitions. Word has length 12 [2024-11-14 05:21:08,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:21:08,533 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 117 transitions. [2024-11-14 05:21:08,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 05:21:08,533 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 117 transitions. [2024-11-14 05:21:08,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-14 05:21:08,534 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:21:08,534 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:21:08,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 05:21:08,534 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:21:08,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:21:08,535 INFO L85 PathProgramCache]: Analyzing trace with hash -345047415, now seen corresponding path program 1 times [2024-11-14 05:21:08,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:21:08,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475288157] [2024-11-14 05:21:08,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:08,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:21:08,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:21:08,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1089035884] [2024-11-14 05:21:08,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:08,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:21:08,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:21:08,577 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:21:08,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 05:21:08,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:21:08,638 INFO L255 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 05:21:08,641 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:21:08,661 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:21:08,662 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:21:08,662 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:21:08,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475288157] [2024-11-14 05:21:08,663 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:21:08,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1089035884] [2024-11-14 05:21:08,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1089035884] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:21:08,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:21:08,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:21:08,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528738095] [2024-11-14 05:21:08,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:21:08,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:21:08,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:21:08,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:21:08,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:21:08,666 INFO L87 Difference]: Start difference. First operand 115 states and 117 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:21:08,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:21:08,808 INFO L93 Difference]: Finished difference Result 180 states and 185 transitions. [2024-11-14 05:21:08,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:21:08,809 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2024-11-14 05:21:08,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:21:08,810 INFO L225 Difference]: With dead ends: 180 [2024-11-14 05:21:08,810 INFO L226 Difference]: Without dead ends: 174 [2024-11-14 05:21:08,810 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 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 05:21:08,811 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 57 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:21:08,812 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 202 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:21:08,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2024-11-14 05:21:08,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 140. [2024-11-14 05:21:08,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 90 states have (on average 1.6666666666666667) internal successors, (150), 133 states have internal predecessors, (150), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-14 05:21:08,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 158 transitions. [2024-11-14 05:21:08,832 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 158 transitions. Word has length 14 [2024-11-14 05:21:08,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:21:08,833 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 158 transitions. [2024-11-14 05:21:08,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:21:08,833 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 158 transitions. [2024-11-14 05:21:08,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-14 05:21:08,834 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:21:08,834 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:21:08,849 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 05:21:09,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:21:09,038 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:21:09,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:21:09,039 INFO L85 PathProgramCache]: Analyzing trace with hash -878082261, now seen corresponding path program 1 times [2024-11-14 05:21:09,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:21:09,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601724900] [2024-11-14 05:21:09,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:09,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:21:09,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:21:09,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1826348324] [2024-11-14 05:21:09,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:09,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:21:09,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:21:09,057 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:21:09,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 05:21:09,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:21:09,100 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 05:21:09,101 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:21:09,119 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:21:09,120 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:21:09,120 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:21:09,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601724900] [2024-11-14 05:21:09,120 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:21:09,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1826348324] [2024-11-14 05:21:09,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1826348324] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:21:09,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:21:09,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:21:09,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766354781] [2024-11-14 05:21:09,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:21:09,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:21:09,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:21:09,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:21:09,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:21:09,123 INFO L87 Difference]: Start difference. First operand 140 states and 158 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:21:09,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:21:09,218 INFO L93 Difference]: Finished difference Result 237 states and 259 transitions. [2024-11-14 05:21:09,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:21:09,218 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2024-11-14 05:21:09,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:21:09,220 INFO L225 Difference]: With dead ends: 237 [2024-11-14 05:21:09,220 INFO L226 Difference]: Without dead ends: 231 [2024-11-14 05:21:09,220 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 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 05:21:09,222 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 87 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:21:09,223 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 202 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:21:09,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2024-11-14 05:21:09,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 189. [2024-11-14 05:21:09,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 138 states have (on average 1.6666666666666667) internal successors, (230), 181 states have internal predecessors, (230), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 05:21:09,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 240 transitions. [2024-11-14 05:21:09,253 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 240 transitions. Word has length 16 [2024-11-14 05:21:09,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:21:09,253 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 240 transitions. [2024-11-14 05:21:09,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:21:09,253 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 240 transitions. [2024-11-14 05:21:09,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-14 05:21:09,254 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:21:09,254 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:21:09,274 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-14 05:21:09,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-14 05:21:09,455 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:21:09,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:21:09,455 INFO L85 PathProgramCache]: Analyzing trace with hash -2023460915, now seen corresponding path program 1 times [2024-11-14 05:21:09,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:21:09,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466799286] [2024-11-14 05:21:09,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:09,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:21:09,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:21:09,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1835707296] [2024-11-14 05:21:09,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:09,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:21:09,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:21:09,472 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:21:09,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 05:21:09,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:21:09,532 INFO L255 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:21:09,533 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:21:09,571 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:21:09,571 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:21:09,571 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:21:09,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466799286] [2024-11-14 05:21:09,571 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:21:09,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1835707296] [2024-11-14 05:21:09,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1835707296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:21:09,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:21:09,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:21:09,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057646347] [2024-11-14 05:21:09,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:21:09,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:21:09,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:21:09,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:21:09,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:21:09,573 INFO L87 Difference]: Start difference. First operand 189 states and 240 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:21:09,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:21:09,894 INFO L93 Difference]: Finished difference Result 257 states and 311 transitions. [2024-11-14 05:21:09,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:21:09,894 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2024-11-14 05:21:09,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:21:09,896 INFO L225 Difference]: With dead ends: 257 [2024-11-14 05:21:09,896 INFO L226 Difference]: Without dead ends: 255 [2024-11-14 05:21:09,896 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:21:09,897 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 122 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:21:09,897 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 210 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 05:21:09,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2024-11-14 05:21:09,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 190. [2024-11-14 05:21:09,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 139 states have (on average 1.6546762589928057) internal successors, (230), 182 states have internal predecessors, (230), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 05:21:09,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 240 transitions. [2024-11-14 05:21:09,910 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 240 transitions. Word has length 18 [2024-11-14 05:21:09,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:21:09,910 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 240 transitions. [2024-11-14 05:21:09,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:21:09,910 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 240 transitions. [2024-11-14 05:21:09,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-14 05:21:09,911 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:21:09,911 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:21:09,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-14 05:21:10,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:21:10,111 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:21:10,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:21:10,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1697221138, now seen corresponding path program 1 times [2024-11-14 05:21:10,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:21:10,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853922944] [2024-11-14 05:21:10,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:10,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:21:10,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:21:10,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [369620729] [2024-11-14 05:21:10,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:10,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:21:10,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:21:10,148 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:21:10,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 05:21:10,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:21:10,199 INFO L255 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:21:10,200 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:21:10,231 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:21:10,231 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:21:10,231 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:21:10,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853922944] [2024-11-14 05:21:10,232 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:21:10,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [369620729] [2024-11-14 05:21:10,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [369620729] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:21:10,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:21:10,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:21:10,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421008710] [2024-11-14 05:21:10,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:21:10,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:21:10,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:21:10,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:21:10,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:21:10,233 INFO L87 Difference]: Start difference. First operand 190 states and 240 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:21:10,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:21:10,571 INFO L93 Difference]: Finished difference Result 256 states and 309 transitions. [2024-11-14 05:21:10,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:21:10,572 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2024-11-14 05:21:10,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:21:10,573 INFO L225 Difference]: With dead ends: 256 [2024-11-14 05:21:10,573 INFO L226 Difference]: Without dead ends: 254 [2024-11-14 05:21:10,573 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:21:10,574 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 120 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 213 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 05:21:10,574 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 213 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 05:21:10,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2024-11-14 05:21:10,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 191. [2024-11-14 05:21:10,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 140 states have (on average 1.6428571428571428) internal successors, (230), 183 states have internal predecessors, (230), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 05:21:10,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 240 transitions. [2024-11-14 05:21:10,586 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 240 transitions. Word has length 19 [2024-11-14 05:21:10,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:21:10,586 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 240 transitions. [2024-11-14 05:21:10,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:21:10,586 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 240 transitions. [2024-11-14 05:21:10,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-14 05:21:10,587 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:21:10,587 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:21:10,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-14 05:21:10,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:21:10,791 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:21:10,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:21:10,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1074247791, now seen corresponding path program 1 times [2024-11-14 05:21:10,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:21:10,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733793227] [2024-11-14 05:21:10,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:10,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:21:10,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:21:10,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [744593731] [2024-11-14 05:21:10,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:10,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:21:10,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:21:10,807 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:21:10,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 05:21:10,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:21:10,857 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:21:10,858 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:21:10,891 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:21:10,891 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:21:10,891 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:21:10,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733793227] [2024-11-14 05:21:10,891 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:21:10,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [744593731] [2024-11-14 05:21:10,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [744593731] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:21:10,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:21:10,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:21:10,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35327272] [2024-11-14 05:21:10,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:21:10,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:21:10,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:21:10,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:21:10,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:21:10,892 INFO L87 Difference]: Start difference. First operand 191 states and 240 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:21:11,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:21:11,182 INFO L93 Difference]: Finished difference Result 251 states and 269 transitions. [2024-11-14 05:21:11,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:21:11,183 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2024-11-14 05:21:11,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:21:11,184 INFO L225 Difference]: With dead ends: 251 [2024-11-14 05:21:11,184 INFO L226 Difference]: Without dead ends: 249 [2024-11-14 05:21:11,184 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:21:11,185 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 168 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:21:11,185 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 233 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 05:21:11,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2024-11-14 05:21:11,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 191. [2024-11-14 05:21:11,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 140 states have (on average 1.6214285714285714) internal successors, (227), 183 states have internal predecessors, (227), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 05:21:11,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 237 transitions. [2024-11-14 05:21:11,201 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 237 transitions. Word has length 20 [2024-11-14 05:21:11,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:21:11,201 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 237 transitions. [2024-11-14 05:21:11,201 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:21:11,202 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 237 transitions. [2024-11-14 05:21:11,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-14 05:21:11,204 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:21:11,204 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:21:11,223 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-14 05:21:11,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:21:11,405 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:21:11,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:21:11,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1058056780, now seen corresponding path program 1 times [2024-11-14 05:21:11,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:21:11,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032209313] [2024-11-14 05:21:11,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:11,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:21:11,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:21:11,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1539712306] [2024-11-14 05:21:11,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:11,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:21:11,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:21:11,421 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:21:11,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-14 05:21:11,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:21:11,469 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:21:11,470 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:21:11,500 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:21:11,501 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:21:11,501 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:21:11,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032209313] [2024-11-14 05:21:11,501 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:21:11,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1539712306] [2024-11-14 05:21:11,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1539712306] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:21:11,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:21:11,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:21:11,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99341209] [2024-11-14 05:21:11,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:21:11,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:21:11,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:21:11,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:21:11,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:21:11,503 INFO L87 Difference]: Start difference. First operand 191 states and 237 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:21:11,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:21:11,695 INFO L93 Difference]: Finished difference Result 249 states and 266 transitions. [2024-11-14 05:21:11,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:21:11,696 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2024-11-14 05:21:11,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:21:11,697 INFO L225 Difference]: With dead ends: 249 [2024-11-14 05:21:11,697 INFO L226 Difference]: Without dead ends: 247 [2024-11-14 05:21:11,698 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:21:11,698 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 165 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:21:11,699 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 239 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:21:11,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2024-11-14 05:21:11,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 191. [2024-11-14 05:21:11,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 140 states have (on average 1.6) internal successors, (224), 183 states have internal predecessors, (224), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 05:21:11,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 234 transitions. [2024-11-14 05:21:11,709 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 234 transitions. Word has length 21 [2024-11-14 05:21:11,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:21:11,709 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 234 transitions. [2024-11-14 05:21:11,710 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:21:11,710 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 234 transitions. [2024-11-14 05:21:11,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-14 05:21:11,710 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:21:11,710 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:21:11,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-14 05:21:11,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-14 05:21:11,911 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:21:11,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:21:11,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1559978257, now seen corresponding path program 1 times [2024-11-14 05:21:11,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:21:11,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507022899] [2024-11-14 05:21:11,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:11,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:21:11,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:21:11,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [426235276] [2024-11-14 05:21:11,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:11,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:21:11,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:21:11,929 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:21:11,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-14 05:21:11,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:21:11,976 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 05:21:11,979 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:21:12,065 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:21:12,065 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:21:12,065 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:21:12,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507022899] [2024-11-14 05:21:12,065 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:21:12,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [426235276] [2024-11-14 05:21:12,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [426235276] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:21:12,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:21:12,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 05:21:12,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824933542] [2024-11-14 05:21:12,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:21:12,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:21:12,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:21:12,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:21:12,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:21:12,066 INFO L87 Difference]: Start difference. First operand 191 states and 234 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:21:12,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:21:12,459 INFO L93 Difference]: Finished difference Result 255 states and 299 transitions. [2024-11-14 05:21:12,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 05:21:12,460 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2024-11-14 05:21:12,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:21:12,461 INFO L225 Difference]: With dead ends: 255 [2024-11-14 05:21:12,462 INFO L226 Difference]: Without dead ends: 253 [2024-11-14 05:21:12,462 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 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 05:21:12,463 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 174 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:21:12,464 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 239 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 05:21:12,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2024-11-14 05:21:12,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 194. [2024-11-14 05:21:12,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 143 states have (on average 1.5804195804195804) internal successors, (226), 186 states have internal predecessors, (226), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 05:21:12,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 236 transitions. [2024-11-14 05:21:12,475 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 236 transitions. Word has length 22 [2024-11-14 05:21:12,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:21:12,476 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 236 transitions. [2024-11-14 05:21:12,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:21:12,476 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 236 transitions. [2024-11-14 05:21:12,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-14 05:21:12,477 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:21:12,477 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:21:12,497 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-14 05:21:12,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-14 05:21:12,678 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:21:12,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:21:12,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1114685782, now seen corresponding path program 1 times [2024-11-14 05:21:12,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:21:12,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330987906] [2024-11-14 05:21:12,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:12,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:21:12,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:21:12,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1880089] [2024-11-14 05:21:12,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:12,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:21:12,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:21:12,707 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:21:12,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-14 05:21:12,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:21:12,748 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 05:21:12,749 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:21:12,840 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:21:12,840 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:21:12,840 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:21:12,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330987906] [2024-11-14 05:21:12,841 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:21:12,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1880089] [2024-11-14 05:21:12,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1880089] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:21:12,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:21:12,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 05:21:12,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831856958] [2024-11-14 05:21:12,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:21:12,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:21:12,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:21:12,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:21:12,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:21:12,842 INFO L87 Difference]: Start difference. First operand 194 states and 236 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:21:13,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:21:13,289 INFO L93 Difference]: Finished difference Result 254 states and 297 transitions. [2024-11-14 05:21:13,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 05:21:13,290 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2024-11-14 05:21:13,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:21:13,291 INFO L225 Difference]: With dead ends: 254 [2024-11-14 05:21:13,291 INFO L226 Difference]: Without dead ends: 252 [2024-11-14 05:21:13,291 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 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 05:21:13,292 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 172 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 05:21:13,292 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 242 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 05:21:13,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2024-11-14 05:21:13,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 195. [2024-11-14 05:21:13,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 144 states have (on average 1.5694444444444444) internal successors, (226), 187 states have internal predecessors, (226), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 05:21:13,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 236 transitions. [2024-11-14 05:21:13,302 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 236 transitions. Word has length 23 [2024-11-14 05:21:13,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:21:13,302 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 236 transitions. [2024-11-14 05:21:13,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:21:13,303 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 236 transitions. [2024-11-14 05:21:13,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-14 05:21:13,303 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:21:13,303 INFO L215 NwaCegarLoop]: trace histogram [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 05:21:13,324 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-14 05:21:13,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-14 05:21:13,508 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:21:13,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:21:13,508 INFO L85 PathProgramCache]: Analyzing trace with hash 195520947, now seen corresponding path program 1 times [2024-11-14 05:21:13,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:21:13,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967323540] [2024-11-14 05:21:13,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:13,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:21:13,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:21:13,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2018306769] [2024-11-14 05:21:13,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:13,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:21:13,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:21:13,523 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:21:13,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-14 05:21:13,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:21:13,577 INFO L255 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 05:21:13,579 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:21:13,719 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:21:13,719 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:21:13,719 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:21:13,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967323540] [2024-11-14 05:21:13,719 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:21:13,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2018306769] [2024-11-14 05:21:13,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2018306769] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:21:13,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:21:13,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:21:13,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011209465] [2024-11-14 05:21:13,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:21:13,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 05:21:13,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:21:13,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 05:21:13,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:21:13,721 INFO L87 Difference]: Start difference. First operand 195 states and 236 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:21:14,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:21:14,045 INFO L93 Difference]: Finished difference Result 246 states and 295 transitions. [2024-11-14 05:21:14,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 05:21:14,046 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2024-11-14 05:21:14,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:21:14,047 INFO L225 Difference]: With dead ends: 246 [2024-11-14 05:21:14,047 INFO L226 Difference]: Without dead ends: 244 [2024-11-14 05:21:14,047 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-11-14 05:21:14,048 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 246 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:21:14,048 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 178 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 05:21:14,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2024-11-14 05:21:14,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 196. [2024-11-14 05:21:14,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 145 states have (on average 1.5586206896551724) internal successors, (226), 188 states have internal predecessors, (226), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 05:21:14,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 236 transitions. [2024-11-14 05:21:14,062 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 236 transitions. Word has length 24 [2024-11-14 05:21:14,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:21:14,063 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 236 transitions. [2024-11-14 05:21:14,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:21:14,063 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 236 transitions. [2024-11-14 05:21:14,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-14 05:21:14,063 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:21:14,065 INFO L215 NwaCegarLoop]: trace histogram [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 05:21:14,083 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-14 05:21:14,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-14 05:21:14,266 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:21:14,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:21:14,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1766182136, now seen corresponding path program 1 times [2024-11-14 05:21:14,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:21:14,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507715704] [2024-11-14 05:21:14,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:14,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:21:14,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:21:14,438 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 05:21:14,438 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:21:14,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507715704] [2024-11-14 05:21:14,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507715704] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:21:14,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [620465152] [2024-11-14 05:21:14,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:14,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:21:14,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:21:14,442 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:21:14,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-14 05:21:14,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:21:14,499 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 05:21:14,501 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:21:14,656 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:21:14,656 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:21:14,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [620465152] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:21:14,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:21:14,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 8 [2024-11-14 05:21:14,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711351096] [2024-11-14 05:21:14,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:21:14,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 05:21:14,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:21:14,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 05:21:14,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-14 05:21:14,658 INFO L87 Difference]: Start difference. First operand 196 states and 236 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:21:15,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:21:15,108 INFO L93 Difference]: Finished difference Result 246 states and 293 transitions. [2024-11-14 05:21:15,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 05:21:15,108 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 25 [2024-11-14 05:21:15,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:21:15,110 INFO L225 Difference]: With dead ends: 246 [2024-11-14 05:21:15,110 INFO L226 Difference]: Without dead ends: 244 [2024-11-14 05:21:15,110 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-14 05:21:15,111 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 245 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 05:21:15,111 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 175 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 05:21:15,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2024-11-14 05:21:15,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 197. [2024-11-14 05:21:15,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 146 states have (on average 1.547945205479452) internal successors, (226), 189 states have internal predecessors, (226), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 05:21:15,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 236 transitions. [2024-11-14 05:21:15,127 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 236 transitions. Word has length 25 [2024-11-14 05:21:15,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:21:15,128 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 236 transitions. [2024-11-14 05:21:15,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:21:15,128 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 236 transitions. [2024-11-14 05:21:15,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-14 05:21:15,130 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:21:15,131 INFO L215 NwaCegarLoop]: trace histogram [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 05:21:15,150 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-14 05:21:15,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-14 05:21:15,331 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:21:15,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:21:15,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1312253193, now seen corresponding path program 1 times [2024-11-14 05:21:15,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:21:15,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002644569] [2024-11-14 05:21:15,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:15,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:21:15,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:21:15,449 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 05:21:15,450 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:21:15,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002644569] [2024-11-14 05:21:15,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002644569] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:21:15,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:21:15,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 05:21:15,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273670625] [2024-11-14 05:21:15,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:21:15,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:21:15,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:21:15,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:21:15,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:21:15,452 INFO L87 Difference]: Start difference. First operand 197 states and 236 transitions. Second operand has 5 states, 3 states have (on average 8.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:21:15,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:21:15,726 INFO L93 Difference]: Finished difference Result 197 states and 236 transitions. [2024-11-14 05:21:15,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:21:15,727 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 8.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2024-11-14 05:21:15,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:21:15,728 INFO L225 Difference]: With dead ends: 197 [2024-11-14 05:21:15,728 INFO L226 Difference]: Without dead ends: 195 [2024-11-14 05:21:15,729 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:21:15,729 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 114 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:21:15,729 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 118 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 05:21:15,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2024-11-14 05:21:15,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2024-11-14 05:21:15,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 146 states have (on average 1.5136986301369864) internal successors, (221), 187 states have internal predecessors, (221), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 05:21:15,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 231 transitions. [2024-11-14 05:21:15,740 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 231 transitions. Word has length 28 [2024-11-14 05:21:15,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:21:15,740 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 231 transitions. [2024-11-14 05:21:15,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 8.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:21:15,741 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 231 transitions. [2024-11-14 05:21:15,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-14 05:21:15,742 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:21:15,743 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:21:15,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-14 05:21:15,743 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:21:15,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:21:15,743 INFO L85 PathProgramCache]: Analyzing trace with hash -2025143236, now seen corresponding path program 1 times [2024-11-14 05:21:15,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:21:15,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079159094] [2024-11-14 05:21:15,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:15,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:21:15,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:21:15,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2000298382] [2024-11-14 05:21:15,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:15,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:21:15,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:21:15,769 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:21:15,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-14 05:21:15,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:21:15,819 INFO L255 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 05:21:15,820 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:21:16,056 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:21:16,056 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:21:16,056 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:21:16,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079159094] [2024-11-14 05:21:16,059 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:21:16,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2000298382] [2024-11-14 05:21:16,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2000298382] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:21:16,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:21:16,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 05:21:16,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854289323] [2024-11-14 05:21:16,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:21:16,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 05:21:16,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:21:16,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 05:21:16,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:21:16,060 INFO L87 Difference]: Start difference. First operand 195 states and 231 transitions. Second operand has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 05:21:16,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:21:16,551 INFO L93 Difference]: Finished difference Result 238 states and 285 transitions. [2024-11-14 05:21:16,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-14 05:21:16,551 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 29 [2024-11-14 05:21:16,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:21:16,553 INFO L225 Difference]: With dead ends: 238 [2024-11-14 05:21:16,553 INFO L226 Difference]: Without dead ends: 236 [2024-11-14 05:21:16,554 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2024-11-14 05:21:16,555 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 235 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 05:21:16,555 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 113 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 05:21:16,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2024-11-14 05:21:16,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 199. [2024-11-14 05:21:16,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 150 states have (on average 1.4933333333333334) internal successors, (224), 191 states have internal predecessors, (224), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 05:21:16,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 234 transitions. [2024-11-14 05:21:16,566 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 234 transitions. Word has length 29 [2024-11-14 05:21:16,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:21:16,567 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 234 transitions. [2024-11-14 05:21:16,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 05:21:16,568 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 234 transitions. [2024-11-14 05:21:16,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-14 05:21:16,568 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:21:16,568 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:21:16,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-14 05:21:16,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-14 05:21:16,769 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:21:16,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:21:16,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1645069209, now seen corresponding path program 1 times [2024-11-14 05:21:16,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:21:16,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902571008] [2024-11-14 05:21:16,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:16,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:21:16,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:21:16,840 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:21:16,840 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:21:16,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902571008] [2024-11-14 05:21:16,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902571008] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:21:16,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:21:16,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:21:16,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749736234] [2024-11-14 05:21:16,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:21:16,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:21:16,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:21:16,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:21:16,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:21:16,841 INFO L87 Difference]: Start difference. First operand 199 states and 234 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:21:17,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:21:17,197 INFO L93 Difference]: Finished difference Result 218 states and 259 transitions. [2024-11-14 05:21:17,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:21:17,198 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 30 [2024-11-14 05:21:17,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:21:17,199 INFO L225 Difference]: With dead ends: 218 [2024-11-14 05:21:17,199 INFO L226 Difference]: Without dead ends: 216 [2024-11-14 05:21:17,199 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:21:17,199 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 92 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:21:17,200 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 127 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 05:21:17,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-11-14 05:21:17,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 200. [2024-11-14 05:21:17,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 151 states have (on average 1.4834437086092715) internal successors, (224), 192 states have internal predecessors, (224), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 05:21:17,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 234 transitions. [2024-11-14 05:21:17,213 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 234 transitions. Word has length 30 [2024-11-14 05:21:17,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:21:17,214 INFO L471 AbstractCegarLoop]: Abstraction has 200 states and 234 transitions. [2024-11-14 05:21:17,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:21:17,214 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 234 transitions. [2024-11-14 05:21:17,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-14 05:21:17,215 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:21:17,216 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:21:17,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-14 05:21:17,216 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:21:17,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:21:17,216 INFO L85 PathProgramCache]: Analyzing trace with hash -542461986, now seen corresponding path program 1 times [2024-11-14 05:21:17,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:21:17,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310426721] [2024-11-14 05:21:17,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:17,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:21:17,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:21:17,286 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:21:17,286 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:21:17,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310426721] [2024-11-14 05:21:17,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310426721] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:21:17,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:21:17,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:21:17,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583198449] [2024-11-14 05:21:17,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:21:17,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:21:17,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:21:17,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:21:17,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:21:17,288 INFO L87 Difference]: Start difference. First operand 200 states and 234 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:21:17,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:21:17,627 INFO L93 Difference]: Finished difference Result 218 states and 257 transitions. [2024-11-14 05:21:17,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:21:17,628 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 31 [2024-11-14 05:21:17,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:21:17,630 INFO L225 Difference]: With dead ends: 218 [2024-11-14 05:21:17,630 INFO L226 Difference]: Without dead ends: 216 [2024-11-14 05:21:17,631 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:21:17,632 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 67 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:21:17,632 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 140 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 05:21:17,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-11-14 05:21:17,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 201. [2024-11-14 05:21:17,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 152 states have (on average 1.4736842105263157) internal successors, (224), 193 states have internal predecessors, (224), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 05:21:17,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 234 transitions. [2024-11-14 05:21:17,643 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 234 transitions. Word has length 31 [2024-11-14 05:21:17,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:21:17,643 INFO L471 AbstractCegarLoop]: Abstraction has 201 states and 234 transitions. [2024-11-14 05:21:17,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:21:17,643 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 234 transitions. [2024-11-14 05:21:17,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-14 05:21:17,646 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:21:17,646 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:21:17,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-14 05:21:17,646 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:21:17,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:21:17,647 INFO L85 PathProgramCache]: Analyzing trace with hash -85866976, now seen corresponding path program 1 times [2024-11-14 05:21:17,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:21:17,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968945240] [2024-11-14 05:21:17,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:17,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:21:17,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:21:17,753 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:21:17,753 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:21:17,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968945240] [2024-11-14 05:21:17,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968945240] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:21:17,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:21:17,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 05:21:17,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487118677] [2024-11-14 05:21:17,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:21:17,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:21:17,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:21:17,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:21:17,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:21:17,755 INFO L87 Difference]: Start difference. First operand 201 states and 234 transitions. Second operand has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 05:21:18,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:21:18,080 INFO L93 Difference]: Finished difference Result 218 states and 255 transitions. [2024-11-14 05:21:18,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:21:18,080 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 39 [2024-11-14 05:21:18,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:21:18,082 INFO L225 Difference]: With dead ends: 218 [2024-11-14 05:21:18,082 INFO L226 Difference]: Without dead ends: 216 [2024-11-14 05:21:18,082 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:21:18,083 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 308 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:21:18,083 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 101 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 05:21:18,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-11-14 05:21:18,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 210. [2024-11-14 05:21:18,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 161 states have (on average 1.453416149068323) internal successors, (234), 202 states have internal predecessors, (234), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 05:21:18,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 244 transitions. [2024-11-14 05:21:18,094 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 244 transitions. Word has length 39 [2024-11-14 05:21:18,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:21:18,094 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 244 transitions. [2024-11-14 05:21:18,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 05:21:18,094 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 244 transitions. [2024-11-14 05:21:18,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-14 05:21:18,095 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:21:18,095 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-14 05:21:18,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-14 05:21:18,096 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:21:18,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:21:18,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1633091144, now seen corresponding path program 1 times [2024-11-14 05:21:18,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:21:18,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467767196] [2024-11-14 05:21:18,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:18,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:21:18,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:21:18,147 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:21:18,147 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:21:18,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467767196] [2024-11-14 05:21:18,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467767196] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:21:18,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:21:18,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:21:18,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66852057] [2024-11-14 05:21:18,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:21:18,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:21:18,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:21:18,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:21:18,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:21:18,148 INFO L87 Difference]: Start difference. First operand 210 states and 244 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 05:21:18,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:21:18,263 INFO L93 Difference]: Finished difference Result 210 states and 244 transitions. [2024-11-14 05:21:18,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:21:18,264 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 40 [2024-11-14 05:21:18,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:21:18,265 INFO L225 Difference]: With dead ends: 210 [2024-11-14 05:21:18,265 INFO L226 Difference]: Without dead ends: 209 [2024-11-14 05:21:18,265 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:21:18,266 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 65 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:21:18,266 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 129 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:21:18,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2024-11-14 05:21:18,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2024-11-14 05:21:18,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 161 states have (on average 1.4409937888198758) internal successors, (232), 201 states have internal predecessors, (232), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 05:21:18,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 242 transitions. [2024-11-14 05:21:18,277 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 242 transitions. Word has length 40 [2024-11-14 05:21:18,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:21:18,278 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 242 transitions. [2024-11-14 05:21:18,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 05:21:18,278 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 242 transitions. [2024-11-14 05:21:18,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-14 05:21:18,280 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:21:18,280 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-14 05:21:18,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-14 05:21:18,281 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:21:18,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:21:18,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1737530314, now seen corresponding path program 1 times [2024-11-14 05:21:18,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:21:18,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842217765] [2024-11-14 05:21:18,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:18,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:21:18,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:21:18,355 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:21:18,355 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:21:18,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842217765] [2024-11-14 05:21:18,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842217765] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:21:18,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:21:18,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:21:18,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234778772] [2024-11-14 05:21:18,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:21:18,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:21:18,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:21:18,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:21:18,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:21:18,357 INFO L87 Difference]: Start difference. First operand 209 states and 242 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 05:21:18,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:21:18,514 INFO L93 Difference]: Finished difference Result 224 states and 259 transitions. [2024-11-14 05:21:18,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:21:18,517 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 42 [2024-11-14 05:21:18,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:21:18,518 INFO L225 Difference]: With dead ends: 224 [2024-11-14 05:21:18,518 INFO L226 Difference]: Without dead ends: 222 [2024-11-14 05:21:18,518 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:21:18,519 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 17 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:21:18,519 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 291 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:21:18,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2024-11-14 05:21:18,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 219. [2024-11-14 05:21:18,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 171 states have (on average 1.432748538011696) internal successors, (245), 211 states have internal predecessors, (245), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 05:21:18,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 255 transitions. [2024-11-14 05:21:18,530 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 255 transitions. Word has length 42 [2024-11-14 05:21:18,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:21:18,530 INFO L471 AbstractCegarLoop]: Abstraction has 219 states and 255 transitions. [2024-11-14 05:21:18,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 05:21:18,531 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 255 transitions. [2024-11-14 05:21:18,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-14 05:21:18,531 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:21:18,531 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-14 05:21:18,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-14 05:21:18,532 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:21:18,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:21:18,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1976500780, now seen corresponding path program 1 times [2024-11-14 05:21:18,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:21:18,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580758345] [2024-11-14 05:21:18,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:18,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:21:18,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:21:18,619 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:21:18,619 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:21:18,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580758345] [2024-11-14 05:21:18,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580758345] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:21:18,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:21:18,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 05:21:18,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024985164] [2024-11-14 05:21:18,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:21:18,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:21:18,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:21:18,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:21:18,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:21:18,621 INFO L87 Difference]: Start difference. First operand 219 states and 255 transitions. Second operand has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 05:21:18,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:21:18,911 INFO L93 Difference]: Finished difference Result 220 states and 255 transitions. [2024-11-14 05:21:18,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:21:18,911 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 42 [2024-11-14 05:21:18,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:21:18,912 INFO L225 Difference]: With dead ends: 220 [2024-11-14 05:21:18,912 INFO L226 Difference]: Without dead ends: 219 [2024-11-14 05:21:18,913 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:21:18,914 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 142 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:21:18,915 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 143 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 05:21:18,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2024-11-14 05:21:18,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2024-11-14 05:21:18,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 171 states have (on average 1.4269005847953216) internal successors, (244), 211 states have internal predecessors, (244), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 05:21:18,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 254 transitions. [2024-11-14 05:21:18,925 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 254 transitions. Word has length 42 [2024-11-14 05:21:18,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:21:18,925 INFO L471 AbstractCegarLoop]: Abstraction has 219 states and 254 transitions. [2024-11-14 05:21:18,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 05:21:18,925 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 254 transitions. [2024-11-14 05:21:18,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-14 05:21:18,926 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:21:18,926 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-14 05:21:18,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-14 05:21:18,926 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:21:18,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:21:18,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1141981916, now seen corresponding path program 1 times [2024-11-14 05:21:18,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:21:18,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537895662] [2024-11-14 05:21:18,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:18,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:21:18,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:21:18,990 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:21:18,990 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:21:18,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537895662] [2024-11-14 05:21:18,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537895662] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:21:18,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:21:18,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:21:18,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291608323] [2024-11-14 05:21:18,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:21:18,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:21:18,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:21:18,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:21:18,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:21:18,992 INFO L87 Difference]: Start difference. First operand 219 states and 254 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 05:21:19,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:21:19,162 INFO L93 Difference]: Finished difference Result 258 states and 269 transitions. [2024-11-14 05:21:19,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:21:19,163 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 43 [2024-11-14 05:21:19,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:21:19,164 INFO L225 Difference]: With dead ends: 258 [2024-11-14 05:21:19,164 INFO L226 Difference]: Without dead ends: 256 [2024-11-14 05:21:19,164 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:21:19,165 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 58 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:21:19,165 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 288 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:21:19,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2024-11-14 05:21:19,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 227. [2024-11-14 05:21:19,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 179 states have (on average 1.4078212290502794) internal successors, (252), 219 states have internal predecessors, (252), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 05:21:19,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 262 transitions. [2024-11-14 05:21:19,175 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 262 transitions. Word has length 43 [2024-11-14 05:21:19,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:21:19,176 INFO L471 AbstractCegarLoop]: Abstraction has 227 states and 262 transitions. [2024-11-14 05:21:19,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 05:21:19,176 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 262 transitions. [2024-11-14 05:21:19,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-14 05:21:19,176 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:21:19,177 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:21:19,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-14 05:21:19,177 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:21:19,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:21:19,177 INFO L85 PathProgramCache]: Analyzing trace with hash -180142376, now seen corresponding path program 1 times [2024-11-14 05:21:19,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:21:19,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051871209] [2024-11-14 05:21:19,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:19,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:21:19,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:21:19,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1169469410] [2024-11-14 05:21:19,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:19,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:21:19,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:21:19,194 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:21:19,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-14 05:21:19,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:21:19,244 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 05:21:19,246 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:21:19,475 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 05:21:19,475 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:21:19,475 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:21:19,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051871209] [2024-11-14 05:21:19,476 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:21:19,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1169469410] [2024-11-14 05:21:19,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1169469410] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:21:19,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:21:19,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 05:21:19,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563474235] [2024-11-14 05:21:19,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:21:19,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 05:21:19,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:21:19,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 05:21:19,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:21:19,477 INFO L87 Difference]: Start difference. First operand 227 states and 262 transitions. Second operand has 7 states, 5 states have (on average 7.8) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 05:21:19,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:21:19,703 INFO L93 Difference]: Finished difference Result 227 states and 262 transitions. [2024-11-14 05:21:19,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 05:21:19,704 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 7.8) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 45 [2024-11-14 05:21:19,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:21:19,705 INFO L225 Difference]: With dead ends: 227 [2024-11-14 05:21:19,705 INFO L226 Difference]: Without dead ends: 224 [2024-11-14 05:21:19,705 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:21:19,706 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 130 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:21:19,706 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 237 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:21:19,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-11-14 05:21:19,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2024-11-14 05:21:19,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 179 states have (on average 1.3743016759776536) internal successors, (246), 216 states have internal predecessors, (246), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 05:21:19,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 256 transitions. [2024-11-14 05:21:19,718 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 256 transitions. Word has length 45 [2024-11-14 05:21:19,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:21:19,719 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 256 transitions. [2024-11-14 05:21:19,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 7.8) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 05:21:19,719 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 256 transitions. [2024-11-14 05:21:19,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-14 05:21:19,720 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:21:19,720 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:21:19,739 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-14 05:21:19,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-14 05:21:19,924 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:21:19,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:21:19,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1289446305, now seen corresponding path program 1 times [2024-11-14 05:21:19,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:21:19,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055717100] [2024-11-14 05:21:19,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:19,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:21:19,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:21:19,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [526271203] [2024-11-14 05:21:19,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:19,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:21:19,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:21:19,955 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:21:19,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-14 05:21:20,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:21:20,011 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 05:21:20,012 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:21:20,233 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 05:21:20,233 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:21:21,035 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:21:21,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055717100] [2024-11-14 05:21:21,035 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:21:21,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [526271203] [2024-11-14 05:21:21,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [526271203] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:21:21,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1477000364] [2024-11-14 05:21:21,064 INFO L159 IcfgInterpreter]: Started Sifa with 42 locations of interest [2024-11-14 05:21:21,064 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:21:21,068 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:21:21,073 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:21:21,075 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:21:25,115 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 97 for LOIs [2024-11-14 05:21:25,177 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 05:21:25,192 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:21:28,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1477000364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:21:28,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:21:28,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [6] total 23 [2024-11-14 05:21:28,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529589655] [2024-11-14 05:21:28,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:21:28,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-14 05:21:28,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:21:28,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-14 05:21:28,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=593, Unknown=0, NotChecked=0, Total=702 [2024-11-14 05:21:28,059 INFO L87 Difference]: Start difference. First operand 224 states and 256 transitions. Second operand has 19 states, 14 states have (on average 2.642857142857143) internal successors, (37), 14 states have internal predecessors, (37), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 05:21:30,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:21:30,054 INFO L93 Difference]: Finished difference Result 239 states and 256 transitions. [2024-11-14 05:21:30,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-14 05:21:30,055 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 14 states have (on average 2.642857142857143) internal successors, (37), 14 states have internal predecessors, (37), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 46 [2024-11-14 05:21:30,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:21:30,056 INFO L225 Difference]: With dead ends: 239 [2024-11-14 05:21:30,056 INFO L226 Difference]: Without dead ends: 224 [2024-11-14 05:21:30,057 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 57 SyntacticMatches, 22 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 460 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=230, Invalid=960, Unknown=0, NotChecked=0, Total=1190 [2024-11-14 05:21:30,057 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 297 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 1115 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 1140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:21:30,058 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 204 Invalid, 1140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1115 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-14 05:21:30,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-11-14 05:21:30,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 217. [2024-11-14 05:21:30,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 172 states have (on average 1.302325581395349) internal successors, (224), 209 states have internal predecessors, (224), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 05:21:30,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 234 transitions. [2024-11-14 05:21:30,071 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 234 transitions. Word has length 46 [2024-11-14 05:21:30,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:21:30,071 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 234 transitions. [2024-11-14 05:21:30,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 14 states have (on average 2.642857142857143) internal successors, (37), 14 states have internal predecessors, (37), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 05:21:30,071 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 234 transitions. [2024-11-14 05:21:30,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-14 05:21:30,072 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:21:30,072 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:21:30,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-14 05:21:30,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:21:30,279 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:21:30,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:21:30,279 INFO L85 PathProgramCache]: Analyzing trace with hash -2036817043, now seen corresponding path program 1 times [2024-11-14 05:21:30,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:21:30,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668938780] [2024-11-14 05:21:30,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:30,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:21:30,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:21:30,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1357095871] [2024-11-14 05:21:30,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:30,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:21:30,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:21:30,321 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:21:30,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-14 05:21:30,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:21:30,410 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 05:21:30,412 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:21:30,635 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 05:21:30,635 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:21:31,491 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:21:31,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668938780] [2024-11-14 05:21:31,491 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:21:31,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1357095871] [2024-11-14 05:21:31,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1357095871] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:21:31,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [964939650] [2024-11-14 05:21:31,494 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-14 05:21:31,494 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:21:31,494 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:21:31,494 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:21:31,494 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:21:34,732 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 105 for LOIs [2024-11-14 05:21:34,774 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 05:21:34,790 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:21:38,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [964939650] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:21:38,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:21:38,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [6] total 27 [2024-11-14 05:21:38,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577483558] [2024-11-14 05:21:38,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:21:38,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-14 05:21:38,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:21:38,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-14 05:21:38,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=791, Unknown=0, NotChecked=0, Total=930 [2024-11-14 05:21:38,094 INFO L87 Difference]: Start difference. First operand 217 states and 234 transitions. Second operand has 23 states, 18 states have (on average 2.2777777777777777) internal successors, (41), 18 states have internal predecessors, (41), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 05:21:41,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:21:41,436 INFO L93 Difference]: Finished difference Result 281 states and 307 transitions. [2024-11-14 05:21:41,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-14 05:21:41,437 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 18 states have (on average 2.2777777777777777) internal successors, (41), 18 states have internal predecessors, (41), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 50 [2024-11-14 05:21:41,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:21:41,438 INFO L225 Difference]: With dead ends: 281 [2024-11-14 05:21:41,438 INFO L226 Difference]: Without dead ends: 265 [2024-11-14 05:21:41,438 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 65 SyntacticMatches, 22 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 705 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=385, Invalid=1595, Unknown=0, NotChecked=0, Total=1980 [2024-11-14 05:21:41,439 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 350 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 1382 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 1413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-14 05:21:41,439 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 193 Invalid, 1413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1382 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-14 05:21:41,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2024-11-14 05:21:41,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 254. [2024-11-14 05:21:41,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 208 states have (on average 1.2932692307692308) internal successors, (269), 245 states have internal predecessors, (269), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 05:21:41,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 281 transitions. [2024-11-14 05:21:41,454 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 281 transitions. Word has length 50 [2024-11-14 05:21:41,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:21:41,454 INFO L471 AbstractCegarLoop]: Abstraction has 254 states and 281 transitions. [2024-11-14 05:21:41,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 18 states have (on average 2.2777777777777777) internal successors, (41), 18 states have internal predecessors, (41), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 05:21:41,455 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 281 transitions. [2024-11-14 05:21:41,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-14 05:21:41,455 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:21:41,455 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:21:41,476 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-14 05:21:41,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-14 05:21:41,656 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:21:41,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:21:41,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1123910479, now seen corresponding path program 1 times [2024-11-14 05:21:41,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:21:41,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647199757] [2024-11-14 05:21:41,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:41,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:21:41,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:21:41,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [197748120] [2024-11-14 05:21:41,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:41,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:21:41,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:21:41,674 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:21:41,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-14 05:21:41,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:21:41,729 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 05:21:41,734 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:21:41,991 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 05:21:41,991 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:21:42,418 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:21:42,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647199757] [2024-11-14 05:21:42,418 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:21:42,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [197748120] [2024-11-14 05:21:42,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [197748120] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:21:42,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1332114901] [2024-11-14 05:21:42,420 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-14 05:21:42,421 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:21:42,421 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:21:42,421 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:21:42,421 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:21:44,967 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 105 for LOIs [2024-11-14 05:21:44,997 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 05:21:45,005 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:21:50,330 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '13053#(exists ((|v_ULTIMATE.start_main_~y~0#1_42| Int) (|v_ULTIMATE.start_main_~X~0#1_67| Int)) (and (<= |v_ULTIMATE.start_main_~X~0#1_67| 20) (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 0 |v_ULTIMATE.start_main_~X~0#1_67|) (<= 0 |ULTIMATE.start_main_~Y~0#1|) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~X~0#1_67| |v_ULTIMATE.start_main_~y~0#1_42|)) (<= 0 (+ 40 |ULTIMATE.start_main_~v~0#1|)) (<= |ULTIMATE.start_main_~x~0#1| 21) (<= |ULTIMATE.start_main_~v~0#1| 9223372036854775807) (<= |v_ULTIMATE.start_main_~y~0#1_42| 9223372036854775807) (<= |ULTIMATE.start_main_~Y~0#1| 20) (= (* |ULTIMATE.start_main_~Y~0#1| |ULTIMATE.start_main_~x~0#1|) |ULTIMATE.start_main_~yx~0#1|)))' at error location [2024-11-14 05:21:50,330 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:21:50,330 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:21:50,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-14 05:21:50,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696267157] [2024-11-14 05:21:50,330 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 05:21:50,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 05:21:50,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:21:50,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 05:21:50,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=982, Unknown=0, NotChecked=0, Total=1122 [2024-11-14 05:21:50,331 INFO L87 Difference]: Start difference. First operand 254 states and 281 transitions. Second operand has 8 states, 6 states have (on average 7.666666666666667) internal successors, (46), 8 states have internal predecessors, (46), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 05:21:50,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:21:50,620 INFO L93 Difference]: Finished difference Result 378 states and 431 transitions. [2024-11-14 05:21:50,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 05:21:50,621 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 7.666666666666667) internal successors, (46), 8 states have internal predecessors, (46), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 52 [2024-11-14 05:21:50,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:21:50,622 INFO L225 Difference]: With dead ends: 378 [2024-11-14 05:21:50,622 INFO L226 Difference]: Without dead ends: 376 [2024-11-14 05:21:50,623 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 68 SyntacticMatches, 22 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 691 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=140, Invalid=982, Unknown=0, NotChecked=0, Total=1122 [2024-11-14 05:21:50,623 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 227 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:21:50,623 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 299 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 05:21:50,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2024-11-14 05:21:50,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 334. [2024-11-14 05:21:50,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 286 states have (on average 1.3461538461538463) internal successors, (385), 323 states have internal predecessors, (385), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-14 05:21:50,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 401 transitions. [2024-11-14 05:21:50,644 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 401 transitions. Word has length 52 [2024-11-14 05:21:50,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:21:50,644 INFO L471 AbstractCegarLoop]: Abstraction has 334 states and 401 transitions. [2024-11-14 05:21:50,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 7.666666666666667) internal successors, (46), 8 states have internal predecessors, (46), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 05:21:50,645 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 401 transitions. [2024-11-14 05:21:50,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-14 05:21:50,645 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:21:50,645 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:21:50,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-14 05:21:50,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-14 05:21:50,846 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:21:50,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:21:50,846 INFO L85 PathProgramCache]: Analyzing trace with hash -359750401, now seen corresponding path program 1 times [2024-11-14 05:21:50,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:21:50,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366953631] [2024-11-14 05:21:50,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:50,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:21:50,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:21:50,936 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:21:50,937 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:21:50,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366953631] [2024-11-14 05:21:50,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366953631] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:21:50,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:21:50,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:21:50,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285457085] [2024-11-14 05:21:50,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:21:50,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:21:50,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:21:50,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:21:50,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:21:50,938 INFO L87 Difference]: Start difference. First operand 334 states and 401 transitions. Second operand has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 05:21:51,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:21:51,323 INFO L93 Difference]: Finished difference Result 343 states and 410 transitions. [2024-11-14 05:21:51,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:21:51,323 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 56 [2024-11-14 05:21:51,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:21:51,325 INFO L225 Difference]: With dead ends: 343 [2024-11-14 05:21:51,325 INFO L226 Difference]: Without dead ends: 342 [2024-11-14 05:21:51,325 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:21:51,326 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 47 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 05:21:51,327 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 116 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 05:21:51,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2024-11-14 05:21:51,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 337. [2024-11-14 05:21:51,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 289 states have (on average 1.342560553633218) internal successors, (388), 326 states have internal predecessors, (388), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-14 05:21:51,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 404 transitions. [2024-11-14 05:21:51,356 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 404 transitions. Word has length 56 [2024-11-14 05:21:51,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:21:51,357 INFO L471 AbstractCegarLoop]: Abstraction has 337 states and 404 transitions. [2024-11-14 05:21:51,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 05:21:51,357 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 404 transitions. [2024-11-14 05:21:51,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-14 05:21:51,359 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:21:51,360 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:21:51,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-14 05:21:51,360 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:21:51,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:21:51,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1225133293, now seen corresponding path program 1 times [2024-11-14 05:21:51,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:21:51,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403965556] [2024-11-14 05:21:51,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:51,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:21:51,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:21:51,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1291228379] [2024-11-14 05:21:51,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:51,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:21:51,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:21:51,388 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:21:51,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-14 05:21:51,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:21:51,440 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-14 05:21:51,441 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:21:51,700 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 05:21:51,701 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:21:52,120 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 05:21:52,120 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:21:52,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403965556] [2024-11-14 05:21:52,121 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:21:52,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1291228379] [2024-11-14 05:21:52,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1291228379] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:21:52,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2020532747] [2024-11-14 05:21:52,123 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-14 05:21:52,123 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:21:52,123 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:21:52,123 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:21:52,123 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:21:54,557 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 105 for LOIs [2024-11-14 05:21:54,588 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 05:21:54,596 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:21:58,853 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '14889#(and (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~X~0#1| 20) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 0 |ULTIMATE.start_main_~Y~0#1|) (<= 0 (+ 40 |ULTIMATE.start_main_~v~0#1|)) (<= |ULTIMATE.start_main_~x~0#1| 21) (<= |ULTIMATE.start_main_~v~0#1| 9223372036854775807) (<= 4611686018427387904 (* |ULTIMATE.start_main_~X~0#1| |ULTIMATE.start_main_~y~0#1|)) (<= (* |ULTIMATE.start_main_~X~0#1| |ULTIMATE.start_main_~y~0#1|) 9223372036854775807) (<= |ULTIMATE.start_main_~Y~0#1| 20) (<= 0 |ULTIMATE.start_main_~X~0#1|) (= (* |ULTIMATE.start_main_~Y~0#1| |ULTIMATE.start_main_~x~0#1|) |ULTIMATE.start_main_~yx~0#1|))' at error location [2024-11-14 05:21:58,853 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:21:58,853 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 05:21:58,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 13 [2024-11-14 05:21:58,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857295046] [2024-11-14 05:21:58,854 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 05:21:58,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-14 05:21:58,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:21:58,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-14 05:21:58,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=1098, Unknown=0, NotChecked=0, Total=1260 [2024-11-14 05:21:58,855 INFO L87 Difference]: Start difference. First operand 337 states and 404 transitions. Second operand has 14 states, 12 states have (on average 8.0) internal successors, (96), 14 states have internal predecessors, (96), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-14 05:22:00,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:22:00,825 INFO L93 Difference]: Finished difference Result 521 states and 593 transitions. [2024-11-14 05:22:00,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-14 05:22:00,825 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 8.0) internal successors, (96), 14 states have internal predecessors, (96), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 56 [2024-11-14 05:22:00,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:22:00,827 INFO L225 Difference]: With dead ends: 521 [2024-11-14 05:22:00,828 INFO L226 Difference]: Without dead ends: 493 [2024-11-14 05:22:00,829 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 107 SyntacticMatches, 25 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1086 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=310, Invalid=2042, Unknown=0, NotChecked=0, Total=2352 [2024-11-14 05:22:00,834 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 759 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 856 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 759 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-14 05:22:00,834 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [759 Valid, 455 Invalid, 891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 856 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-14 05:22:00,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2024-11-14 05:22:00,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 378. [2024-11-14 05:22:00,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 328 states have (on average 1.3414634146341464) internal successors, (440), 365 states have internal predecessors, (440), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-14 05:22:00,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 460 transitions. [2024-11-14 05:22:00,861 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 460 transitions. Word has length 56 [2024-11-14 05:22:00,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:22:00,861 INFO L471 AbstractCegarLoop]: Abstraction has 378 states and 460 transitions. [2024-11-14 05:22:00,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 8.0) internal successors, (96), 14 states have internal predecessors, (96), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-14 05:22:00,861 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 460 transitions. [2024-11-14 05:22:00,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-14 05:22:00,863 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:22:00,863 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:22:00,883 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-14 05:22:01,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-14 05:22:01,064 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:22:01,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:22:01,064 INFO L85 PathProgramCache]: Analyzing trace with hash 686218228, now seen corresponding path program 1 times [2024-11-14 05:22:01,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:22:01,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126067513] [2024-11-14 05:22:01,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:22:01,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:22:01,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:22:01,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1756637995] [2024-11-14 05:22:01,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:22:01,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:22:01,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:22:01,093 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:22:01,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-14 05:22:01,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:22:01,144 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-14 05:22:01,146 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:22:01,674 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 05:22:01,674 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:22:02,942 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 05:22:02,943 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:22:02,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126067513] [2024-11-14 05:22:02,943 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:22:02,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1756637995] [2024-11-14 05:22:02,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1756637995] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:22:02,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1263141979] [2024-11-14 05:22:02,945 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-14 05:22:02,945 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:22:02,945 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:22:02,945 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:22:02,946 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:22:05,513 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 105 for LOIs [2024-11-14 05:22:05,563 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 05:22:05,571 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:22:11,558 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '16251#(and (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 0 |ULTIMATE.start_main_~y~0#1|) (<= 0 |ULTIMATE.start_main_~Y~0#1|) (<= 0 (+ 40 |ULTIMATE.start_main_~v~0#1|)) (<= |ULTIMATE.start_main_~x~0#1| 21) (<= |ULTIMATE.start_main_~v~0#1| 9223372036854775807) (<= |ULTIMATE.start_main_~Y~0#1| 20) (<= |ULTIMATE.start_main_~y~0#1| 9223372036854775807))' at error location [2024-11-14 05:22:11,558 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:22:11,558 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 05:22:11,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 21 [2024-11-14 05:22:11,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988374730] [2024-11-14 05:22:11,559 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 05:22:11,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-14 05:22:11,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:22:11,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-14 05:22:11,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=1691, Unknown=0, NotChecked=0, Total=1892 [2024-11-14 05:22:11,560 INFO L87 Difference]: Start difference. First operand 378 states and 460 transitions. Second operand has 22 states, 20 states have (on average 5.1) internal successors, (102), 22 states have internal predecessors, (102), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-14 05:22:23,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:22:23,127 INFO L93 Difference]: Finished difference Result 568 states and 696 transitions. [2024-11-14 05:22:23,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-11-14 05:22:23,128 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 5.1) internal successors, (102), 22 states have internal predecessors, (102), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 59 [2024-11-14 05:22:23,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:22:23,130 INFO L225 Difference]: With dead ends: 568 [2024-11-14 05:22:23,130 INFO L226 Difference]: Without dead ends: 563 [2024-11-14 05:22:23,132 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 107 SyntacticMatches, 26 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2171 ImplicationChecksByTransitivity, 12.0s TimeCoverageRelationStatistics Valid=702, Invalid=5304, Unknown=0, NotChecked=0, Total=6006 [2024-11-14 05:22:23,133 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 918 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 1665 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 918 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 1702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2024-11-14 05:22:23,133 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [918 Valid, 238 Invalid, 1702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1665 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2024-11-14 05:22:23,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2024-11-14 05:22:23,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 401. [2024-11-14 05:22:23,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 351 states have (on average 1.339031339031339) internal successors, (470), 388 states have internal predecessors, (470), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-14 05:22:23,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 490 transitions. [2024-11-14 05:22:23,167 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 490 transitions. Word has length 59 [2024-11-14 05:22:23,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:22:23,167 INFO L471 AbstractCegarLoop]: Abstraction has 401 states and 490 transitions. [2024-11-14 05:22:23,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 5.1) internal successors, (102), 22 states have internal predecessors, (102), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-14 05:22:23,167 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 490 transitions. [2024-11-14 05:22:23,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-14 05:22:23,168 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:22:23,168 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:22:23,190 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-14 05:22:23,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:22:23,369 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:22:23,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:22:23,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1222951194, now seen corresponding path program 1 times [2024-11-14 05:22:23,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:22:23,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909820055] [2024-11-14 05:22:23,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:22:23,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:22:23,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:22:23,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [102153606] [2024-11-14 05:22:23,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:22:23,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:22:23,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:22:23,397 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:22:23,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-14 05:22:23,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:22:23,450 INFO L255 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-14 05:22:23,452 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:22:23,742 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:22:23,742 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:22:24,102 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:22:24,102 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:22:24,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909820055] [2024-11-14 05:22:24,102 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:22:24,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [102153606] [2024-11-14 05:22:24,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [102153606] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:22:24,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [734795422] [2024-11-14 05:22:24,104 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-14 05:22:24,104 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:22:24,104 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:22:24,104 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:22:24,105 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:22:26,459 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 105 for LOIs [2024-11-14 05:22:26,502 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 05:22:26,510 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:22:31,509 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '17762#(exists ((|v_ULTIMATE.start_main_~Y~0#1_85| Int) (|v_ULTIMATE.start_main_~X~0#1_73| Int) (|v_ULTIMATE.start_main_~v~0#1_73| Int) (|v_ULTIMATE.start_main_~yx~0#1_86| Int) (|v_ULTIMATE.start_main_~xy~0#1_86| Int)) (and (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |v_ULTIMATE.start_main_~Y~0#1_85| 20) (<= |v_ULTIMATE.start_main_~X~0#1_73| 20) (<= 0 |ULTIMATE.start_main_~y~0#1|) (<= 0 |v_ULTIMATE.start_main_~Y~0#1_85|) (<= 0 |v_ULTIMATE.start_main_~X~0#1_73|) (<= 0 |v_ULTIMATE.start_main_~xy~0#1_86|) (<= (+ (* 2 |v_ULTIMATE.start_main_~Y~0#1_85|) 9223372036854775809 (* 2 |v_ULTIMATE.start_main_~yx~0#1_86|)) (+ |v_ULTIMATE.start_main_~X~0#1_73| |v_ULTIMATE.start_main_~v~0#1_73| (* 2 |v_ULTIMATE.start_main_~xy~0#1_86|))) (<= |ULTIMATE.start_main_~x~0#1| 21) (<= (+ |v_ULTIMATE.start_main_~X~0#1_73| (* 2 |v_ULTIMATE.start_main_~xy~0#1_86|)) (+ 9223372036854775808 (* 2 |v_ULTIMATE.start_main_~yx~0#1_86|))) (<= 0 |v_ULTIMATE.start_main_~yx~0#1_86|) (<= |v_ULTIMATE.start_main_~xy~0#1_86| 4611686018427387903) (<= |v_ULTIMATE.start_main_~v~0#1_73| 9223372036854775807) (<= |ULTIMATE.start_main_~y~0#1| 9223372036854775807) (<= |v_ULTIMATE.start_main_~yx~0#1_86| 420)))' at error location [2024-11-14 05:22:31,509 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:22:31,509 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 05:22:31,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2024-11-14 05:22:31,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299406747] [2024-11-14 05:22:31,509 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 05:22:31,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-14 05:22:31,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:22:31,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-14 05:22:31,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=1276, Unknown=0, NotChecked=0, Total=1406 [2024-11-14 05:22:31,510 INFO L87 Difference]: Start difference. First operand 401 states and 490 transitions. Second operand has 16 states, 15 states have (on average 7.266666666666667) internal successors, (109), 16 states have internal predecessors, (109), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 05:22:33,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:22:33,884 INFO L93 Difference]: Finished difference Result 554 states and 701 transitions. [2024-11-14 05:22:33,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-14 05:22:33,884 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 7.266666666666667) internal successors, (109), 16 states have internal predecessors, (109), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 65 [2024-11-14 05:22:33,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:22:33,885 INFO L225 Difference]: With dead ends: 554 [2024-11-14 05:22:33,885 INFO L226 Difference]: Without dead ends: 552 [2024-11-14 05:22:33,886 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 126 SyntacticMatches, 31 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1234 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=271, Invalid=2279, Unknown=0, NotChecked=0, Total=2550 [2024-11-14 05:22:33,886 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 297 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 1504 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 1525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-14 05:22:33,886 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 329 Invalid, 1525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1504 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-14 05:22:33,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-11-14 05:22:33,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 497. [2024-11-14 05:22:33,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 497 states, 445 states have (on average 1.3820224719101124) internal successors, (615), 482 states have internal predecessors, (615), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-14 05:22:33,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 639 transitions. [2024-11-14 05:22:33,924 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 639 transitions. Word has length 65 [2024-11-14 05:22:33,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:22:33,924 INFO L471 AbstractCegarLoop]: Abstraction has 497 states and 639 transitions. [2024-11-14 05:22:33,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 7.266666666666667) internal successors, (109), 16 states have internal predecessors, (109), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 05:22:33,925 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 639 transitions. [2024-11-14 05:22:33,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-14 05:22:33,925 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:22:33,925 INFO L215 NwaCegarLoop]: trace histogram [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 05:22:33,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-14 05:22:34,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:22:34,126 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:22:34,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:22:34,126 INFO L85 PathProgramCache]: Analyzing trace with hash -49250434, now seen corresponding path program 1 times [2024-11-14 05:22:34,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:22:34,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197603044] [2024-11-14 05:22:34,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:22:34,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:22:34,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:22:34,224 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-14 05:22:34,225 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:22:34,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197603044] [2024-11-14 05:22:34,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197603044] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:22:34,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:22:34,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 05:22:34,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801165572] [2024-11-14 05:22:34,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:22:34,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:22:34,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:22:34,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:22:34,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:22:34,227 INFO L87 Difference]: Start difference. First operand 497 states and 639 transitions. Second operand has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-14 05:22:34,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:22:34,815 INFO L93 Difference]: Finished difference Result 497 states and 639 transitions. [2024-11-14 05:22:34,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 05:22:34,815 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 71 [2024-11-14 05:22:34,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:22:34,817 INFO L225 Difference]: With dead ends: 497 [2024-11-14 05:22:34,817 INFO L226 Difference]: Without dead ends: 496 [2024-11-14 05:22:34,817 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:22:34,818 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 142 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 05:22:34,818 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 95 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 05:22:34,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2024-11-14 05:22:34,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 496. [2024-11-14 05:22:34,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 445 states have (on average 1.3707865168539326) internal successors, (610), 481 states have internal predecessors, (610), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-14 05:22:34,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 634 transitions. [2024-11-14 05:22:34,851 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 634 transitions. Word has length 71 [2024-11-14 05:22:34,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:22:34,851 INFO L471 AbstractCegarLoop]: Abstraction has 496 states and 634 transitions. [2024-11-14 05:22:34,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-14 05:22:34,852 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 634 transitions. [2024-11-14 05:22:34,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-14 05:22:34,852 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:22:34,853 INFO L215 NwaCegarLoop]: trace histogram [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 05:22:34,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-14 05:22:34,853 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:22:34,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:22:34,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1526763311, now seen corresponding path program 1 times [2024-11-14 05:22:34,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:22:34,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890912077] [2024-11-14 05:22:34,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:22:34,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:22:34,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:22:35,069 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-14 05:22:35,069 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:22:35,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890912077] [2024-11-14 05:22:35,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890912077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:22:35,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:22:35,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 05:22:35,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886620756] [2024-11-14 05:22:35,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:22:35,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:22:35,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:22:35,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:22:35,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:22:35,070 INFO L87 Difference]: Start difference. First operand 496 states and 634 transitions. Second operand has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-14 05:22:36,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:22:36,128 INFO L93 Difference]: Finished difference Result 496 states and 634 transitions. [2024-11-14 05:22:36,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 05:22:36,128 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 72 [2024-11-14 05:22:36,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:22:36,131 INFO L225 Difference]: With dead ends: 496 [2024-11-14 05:22:36,131 INFO L226 Difference]: Without dead ends: 494 [2024-11-14 05:22:36,131 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:22:36,132 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 139 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:22:36,132 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 95 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-14 05:22:36,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2024-11-14 05:22:36,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 488. [2024-11-14 05:22:36,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 439 states have (on average 1.3485193621867881) internal successors, (592), 473 states have internal predecessors, (592), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-14 05:22:36,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 616 transitions. [2024-11-14 05:22:36,172 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 616 transitions. Word has length 72 [2024-11-14 05:22:36,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:22:36,172 INFO L471 AbstractCegarLoop]: Abstraction has 488 states and 616 transitions. [2024-11-14 05:22:36,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-14 05:22:36,173 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 616 transitions. [2024-11-14 05:22:36,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-14 05:22:36,173 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:22:36,174 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:22:36,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-14 05:22:36,174 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:22:36,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:22:36,174 INFO L85 PathProgramCache]: Analyzing trace with hash -101989310, now seen corresponding path program 1 times [2024-11-14 05:22:36,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:22:36,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647552233] [2024-11-14 05:22:36,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:22:36,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:22:36,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:22:36,453 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-14 05:22:36,453 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:22:36,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647552233] [2024-11-14 05:22:36,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647552233] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:22:36,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1441351531] [2024-11-14 05:22:36,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:22:36,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:22:36,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:22:36,456 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:22:36,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-14 05:22:36,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:22:36,518 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 05:22:36,520 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:22:36,867 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-14 05:22:36,867 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:22:36,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1441351531] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:22:36,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:22:36,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 13 [2024-11-14 05:22:36,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752984891] [2024-11-14 05:22:36,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:22:36,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 05:22:36,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:22:36,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 05:22:36,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-14 05:22:36,869 INFO L87 Difference]: Start difference. First operand 488 states and 616 transitions. Second operand has 7 states, 6 states have (on average 10.5) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 05:22:37,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:22:37,940 INFO L93 Difference]: Finished difference Result 518 states and 647 transitions. [2024-11-14 05:22:37,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-14 05:22:37,941 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.5) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 75 [2024-11-14 05:22:37,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:22:37,943 INFO L225 Difference]: With dead ends: 518 [2024-11-14 05:22:37,943 INFO L226 Difference]: Without dead ends: 517 [2024-11-14 05:22:37,943 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2024-11-14 05:22:37,943 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 204 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 05:22:37,943 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 252 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 05:22:37,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2024-11-14 05:22:37,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 489. [2024-11-14 05:22:37,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 440 states have (on average 1.3477272727272727) internal successors, (593), 474 states have internal predecessors, (593), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-14 05:22:37,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 617 transitions. [2024-11-14 05:22:37,980 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 617 transitions. Word has length 75 [2024-11-14 05:22:37,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:22:37,981 INFO L471 AbstractCegarLoop]: Abstraction has 489 states and 617 transitions. [2024-11-14 05:22:37,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.5) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 05:22:37,981 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 617 transitions. [2024-11-14 05:22:37,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-14 05:22:37,982 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:22:37,982 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:22:38,001 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-14 05:22:38,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-11-14 05:22:38,186 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:22:38,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:22:38,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1133298837, now seen corresponding path program 1 times [2024-11-14 05:22:38,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:22:38,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165515895] [2024-11-14 05:22:38,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:22:38,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:22:38,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:22:38,416 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-14 05:22:38,416 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:22:38,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165515895] [2024-11-14 05:22:38,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165515895] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:22:38,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1668838667] [2024-11-14 05:22:38,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:22:38,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:22:38,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:22:38,419 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:22:38,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-14 05:22:38,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:22:38,474 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:22:38,476 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:22:38,577 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-14 05:22:38,577 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:22:38,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1668838667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:22:38,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:22:38,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2024-11-14 05:22:38,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39617060] [2024-11-14 05:22:38,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:22:38,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:22:38,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:22:38,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:22:38,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-14 05:22:38,578 INFO L87 Difference]: Start difference. First operand 489 states and 617 transitions. Second operand has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 05:22:38,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:22:38,755 INFO L93 Difference]: Finished difference Result 517 states and 646 transitions. [2024-11-14 05:22:38,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 05:22:38,756 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 76 [2024-11-14 05:22:38,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:22:38,758 INFO L225 Difference]: With dead ends: 517 [2024-11-14 05:22:38,758 INFO L226 Difference]: Without dead ends: 516 [2024-11-14 05:22:38,759 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-14 05:22:38,759 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 143 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:22:38,759 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 253 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:22:38,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2024-11-14 05:22:38,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 490. [2024-11-14 05:22:38,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 441 states have (on average 1.346938775510204) internal successors, (594), 475 states have internal predecessors, (594), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-14 05:22:38,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 618 transitions. [2024-11-14 05:22:38,792 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 618 transitions. Word has length 76 [2024-11-14 05:22:38,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:22:38,794 INFO L471 AbstractCegarLoop]: Abstraction has 490 states and 618 transitions. [2024-11-14 05:22:38,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 05:22:38,794 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 618 transitions. [2024-11-14 05:22:38,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-14 05:22:38,795 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:22:38,795 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:22:38,814 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-14 05:22:38,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:22:38,995 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:22:38,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:22:38,996 INFO L85 PathProgramCache]: Analyzing trace with hash 772525732, now seen corresponding path program 1 times [2024-11-14 05:22:38,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:22:38,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681454762] [2024-11-14 05:22:38,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:22:38,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:22:39,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:22:39,100 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 05:22:39,100 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:22:39,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681454762] [2024-11-14 05:22:39,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681454762] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:22:39,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [24163894] [2024-11-14 05:22:39,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:22:39,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:22:39,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:22:39,103 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:22:39,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-14 05:22:39,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:22:39,159 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 05:22:39,160 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:22:39,266 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 05:22:39,266 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:22:39,387 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 05:22:39,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [24163894] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:22:39,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1484800434] [2024-11-14 05:22:39,389 INFO L159 IcfgInterpreter]: Started Sifa with 53 locations of interest [2024-11-14 05:22:39,391 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:22:39,391 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:22:39,391 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:22:39,391 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:22:41,423 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-14 05:22:41,431 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 05:22:41,442 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:22:44,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1484800434] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:22:44,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:22:44,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [6, 6, 6] total 29 [2024-11-14 05:22:44,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651855379] [2024-11-14 05:22:44,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:22:44,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-14 05:22:44,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:22:44,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-14 05:22:44,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=773, Unknown=0, NotChecked=0, Total=870 [2024-11-14 05:22:44,287 INFO L87 Difference]: Start difference. First operand 490 states and 618 transitions. Second operand has 22 states, 17 states have (on average 2.823529411764706) internal successors, (48), 17 states have internal predecessors, (48), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 05:22:46,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:22:46,800 INFO L93 Difference]: Finished difference Result 505 states and 635 transitions. [2024-11-14 05:22:46,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-14 05:22:46,800 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 17 states have (on average 2.823529411764706) internal successors, (48), 17 states have internal predecessors, (48), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 77 [2024-11-14 05:22:46,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:22:46,801 INFO L225 Difference]: With dead ends: 505 [2024-11-14 05:22:46,801 INFO L226 Difference]: Without dead ends: 502 [2024-11-14 05:22:46,802 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 169 SyntacticMatches, 38 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 745 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=230, Invalid=1330, Unknown=0, NotChecked=0, Total=1560 [2024-11-14 05:22:46,802 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 370 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 1273 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 1294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-14 05:22:46,802 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [371 Valid, 157 Invalid, 1294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1273 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-14 05:22:46,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2024-11-14 05:22:46,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 501. [2024-11-14 05:22:46,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 452 states have (on average 1.342920353982301) internal successors, (607), 486 states have internal predecessors, (607), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-14 05:22:46,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 631 transitions. [2024-11-14 05:22:46,837 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 631 transitions. Word has length 77 [2024-11-14 05:22:46,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:22:46,838 INFO L471 AbstractCegarLoop]: Abstraction has 501 states and 631 transitions. [2024-11-14 05:22:46,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 17 states have (on average 2.823529411764706) internal successors, (48), 17 states have internal predecessors, (48), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 05:22:46,838 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 631 transitions. [2024-11-14 05:22:46,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-14 05:22:46,839 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:22:46,839 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:22:46,860 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-14 05:22:47,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:22:47,039 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:22:47,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:22:47,040 INFO L85 PathProgramCache]: Analyzing trace with hash -2120439278, now seen corresponding path program 1 times [2024-11-14 05:22:47,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:22:47,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444210721] [2024-11-14 05:22:47,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:22:47,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:22:47,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:22:47,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1285551682] [2024-11-14 05:22:47,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:22:47,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:22:47,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:22:47,062 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:22:47,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-14 05:22:47,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:22:47,121 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-14 05:22:47,122 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:22:47,305 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 05:22:47,305 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:22:47,505 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 05:22:47,505 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:22:47,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444210721] [2024-11-14 05:22:47,505 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:22:47,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1285551682] [2024-11-14 05:22:47,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1285551682] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:22:47,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1738739185] [2024-11-14 05:22:47,507 INFO L159 IcfgInterpreter]: Started Sifa with 53 locations of interest [2024-11-14 05:22:47,507 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:22:47,507 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:22:47,507 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:22:47,507 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:22:49,695 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 51 for LOIs [2024-11-14 05:22:49,701 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 05:22:49,709 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:22:54,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1738739185] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:22:54,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-14 05:22:54,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [7, 7] total 38 [2024-11-14 05:22:54,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131341872] [2024-11-14 05:22:54,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:22:54,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-14 05:22:54,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:22:54,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-14 05:22:54,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=1302, Unknown=0, NotChecked=0, Total=1482 [2024-11-14 05:22:54,081 INFO L87 Difference]: Start difference. First operand 501 states and 631 transitions. Second operand has 27 states, 22 states have (on average 2.1818181818181817) internal successors, (48), 22 states have internal predecessors, (48), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 05:22:58,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:22:58,680 INFO L93 Difference]: Finished difference Result 561 states and 710 transitions. [2024-11-14 05:22:58,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-14 05:22:58,681 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 22 states have (on average 2.1818181818181817) internal successors, (48), 22 states have internal predecessors, (48), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 77 [2024-11-14 05:22:58,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:22:58,683 INFO L225 Difference]: With dead ends: 561 [2024-11-14 05:22:58,683 INFO L226 Difference]: Without dead ends: 557 [2024-11-14 05:22:58,684 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 158 SyntacticMatches, 34 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1209 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=492, Invalid=2588, Unknown=0, NotChecked=0, Total=3080 [2024-11-14 05:22:58,685 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 383 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 1369 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 1387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-14 05:22:58,685 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 123 Invalid, 1387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1369 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-14 05:22:58,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2024-11-14 05:22:58,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 536. [2024-11-14 05:22:58,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 487 states have (on average 1.3388090349075976) internal successors, (652), 521 states have internal predecessors, (652), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-14 05:22:58,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 676 transitions. [2024-11-14 05:22:58,721 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 676 transitions. Word has length 77 [2024-11-14 05:22:58,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:22:58,722 INFO L471 AbstractCegarLoop]: Abstraction has 536 states and 676 transitions. [2024-11-14 05:22:58,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 22 states have (on average 2.1818181818181817) internal successors, (48), 22 states have internal predecessors, (48), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 05:22:58,722 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 676 transitions. [2024-11-14 05:22:58,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-14 05:22:58,723 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:22:58,723 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:22:58,742 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-14 05:22:58,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:22:58,927 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:22:58,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:22:58,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1921334827, now seen corresponding path program 1 times [2024-11-14 05:22:58,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:22:58,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447927366] [2024-11-14 05:22:58,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:22:58,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:22:58,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:22:59,051 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 05:22:59,052 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:22:59,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447927366] [2024-11-14 05:22:59,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447927366] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:22:59,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1274819677] [2024-11-14 05:22:59,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:22:59,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:22:59,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:22:59,054 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:22:59,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-14 05:22:59,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:22:59,107 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 05:22:59,109 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:22:59,513 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 05:22:59,513 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:22:59,871 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 05:22:59,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1274819677] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:22:59,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1304836285] [2024-11-14 05:22:59,873 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-14 05:22:59,873 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:22:59,873 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:22:59,873 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:22:59,873 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:23:02,001 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 105 for LOIs [2024-11-14 05:23:02,033 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 05:23:02,041 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:23:07,704 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '27345#(exists ((|v_ULTIMATE.start_main_~X~0#1_75| Int) (|v_ULTIMATE.start_main_~Y~0#1_87| Int)) (and (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 0 |ULTIMATE.start_main_~y~0#1|) (<= 0 |ULTIMATE.start_main_~yx~0#1|) (<= |ULTIMATE.start_main_~x~0#1| |v_ULTIMATE.start_main_~X~0#1_75|) (<= 0 |v_ULTIMATE.start_main_~Y~0#1_87|) (<= |v_ULTIMATE.start_main_~X~0#1_75| 20) (<= 0 |ULTIMATE.start_main_~xy~0#1|) (<= |v_ULTIMATE.start_main_~Y~0#1_87| 20)))' at error location [2024-11-14 05:23:07,705 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:23:07,705 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:23:07,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 17 [2024-11-14 05:23:07,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100353292] [2024-11-14 05:23:07,705 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:23:07,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-14 05:23:07,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:23:07,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-14 05:23:07,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=1375, Unknown=0, NotChecked=0, Total=1560 [2024-11-14 05:23:07,707 INFO L87 Difference]: Start difference. First operand 536 states and 676 transitions. Second operand has 18 states, 17 states have (on average 11.235294117647058) internal successors, (191), 18 states have internal predecessors, (191), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-14 05:23:08,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:23:08,840 INFO L93 Difference]: Finished difference Result 861 states and 1065 transitions. [2024-11-14 05:23:08,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-14 05:23:08,840 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 11.235294117647058) internal successors, (191), 18 states have internal predecessors, (191), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Word has length 77 [2024-11-14 05:23:08,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:23:08,842 INFO L225 Difference]: With dead ends: 861 [2024-11-14 05:23:08,843 INFO L226 Difference]: Without dead ends: 860 [2024-11-14 05:23:08,843 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 160 SyntacticMatches, 37 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1570 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=441, Invalid=2639, Unknown=0, NotChecked=0, Total=3080 [2024-11-14 05:23:08,844 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 581 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 863 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 582 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 05:23:08,844 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [582 Valid, 414 Invalid, 887 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 863 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 05:23:08,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 860 states. [2024-11-14 05:23:08,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 860 to 688. [2024-11-14 05:23:08,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 634 states have (on average 1.3422712933753944) internal successors, (851), 668 states have internal predecessors, (851), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-14 05:23:08,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 885 transitions. [2024-11-14 05:23:08,888 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 885 transitions. Word has length 77 [2024-11-14 05:23:08,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:23:08,889 INFO L471 AbstractCegarLoop]: Abstraction has 688 states and 885 transitions. [2024-11-14 05:23:08,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 11.235294117647058) internal successors, (191), 18 states have internal predecessors, (191), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-14 05:23:08,889 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 885 transitions. [2024-11-14 05:23:08,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-14 05:23:08,890 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:23:08,890 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:23:08,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-14 05:23:09,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-14 05:23:09,090 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:23:09,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:23:09,091 INFO L85 PathProgramCache]: Analyzing trace with hash -855759047, now seen corresponding path program 1 times [2024-11-14 05:23:09,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:23:09,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104973618] [2024-11-14 05:23:09,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:23:09,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:23:09,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:23:09,177 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 05:23:09,177 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:23:09,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104973618] [2024-11-14 05:23:09,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104973618] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:23:09,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [981910231] [2024-11-14 05:23:09,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:23:09,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:23:09,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:23:09,180 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:23:09,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-14 05:23:09,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:23:09,238 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:23:09,239 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:23:09,330 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 05:23:09,330 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:23:09,453 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 05:23:09,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [981910231] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:23:09,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1086170220] [2024-11-14 05:23:09,455 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2024-11-14 05:23:09,455 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:23:09,456 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:23:09,456 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:23:09,456 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:23:13,157 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 113 for LOIs [2024-11-14 05:23:13,185 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 05:23:13,193 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:23:18,695 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '29496#(and (exists ((|v_ULTIMATE.start_main_#t~post7#1_75| Int)) (and (or (and (<= (* 2 |ULTIMATE.start_main_~Y~0#1|) (+ |ULTIMATE.start_main_~v~0#1| (* 2 |ULTIMATE.start_main_~X~0#1|))) (<= |v_ULTIMATE.start_main_#t~post7#1_75| |ULTIMATE.start_main_~X~0#1|) (<= |ULTIMATE.start_main_~X~0#1| (+ |ULTIMATE.start_main_~Y~0#1| 4611686018427387904))) (and (<= |ULTIMATE.start_main_~Y~0#1| 4611686018427387903) (<= |v_ULTIMATE.start_main_#t~post7#1_75| |ULTIMATE.start_main_~X~0#1|) (<= (+ |ULTIMATE.start_main_~v~0#1| 1) (* 2 |ULTIMATE.start_main_~Y~0#1|)))) (<= 9223372036854775807 |v_ULTIMATE.start_main_#t~post7#1_75|))) (or (and (<= |ULTIMATE.start_main_~v~0#1| 9223372036854775807) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~y~0#1|)) (<= |ULTIMATE.start_main_~y~0#1| 9223372036854775807) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~v~0#1|))) (and (<= |ULTIMATE.start_main_~Y~0#1| 4611686018427387903) (<= |ULTIMATE.start_main_~v~0#1| 9223372036854775805) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~v~0#1|)))))' at error location [2024-11-14 05:23:18,695 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:23:18,695 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:23:18,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-14 05:23:18,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984912647] [2024-11-14 05:23:18,696 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:23:18,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-14 05:23:18,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:23:18,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-14 05:23:18,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=257, Invalid=2713, Unknown=0, NotChecked=0, Total=2970 [2024-11-14 05:23:18,698 INFO L87 Difference]: Start difference. First operand 688 states and 885 transitions. Second operand has 12 states, 11 states have (on average 14.363636363636363) internal successors, (158), 12 states have internal predecessors, (158), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-14 05:23:18,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:23:18,892 INFO L93 Difference]: Finished difference Result 1019 states and 1278 transitions. [2024-11-14 05:23:18,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-14 05:23:18,892 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 14.363636363636363) internal successors, (158), 12 states have internal predecessors, (158), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 78 [2024-11-14 05:23:18,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:23:18,895 INFO L225 Difference]: With dead ends: 1019 [2024-11-14 05:23:18,895 INFO L226 Difference]: Without dead ends: 1018 [2024-11-14 05:23:18,896 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 182 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1214 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=257, Invalid=2713, Unknown=0, NotChecked=0, Total=2970 [2024-11-14 05:23:18,897 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 86 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:23:18,897 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 448 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:23:18,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1018 states. [2024-11-14 05:23:18,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1018 to 928. [2024-11-14 05:23:18,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 928 states, 868 states have (on average 1.3214285714285714) internal successors, (1147), 902 states have internal predecessors, (1147), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-14 05:23:18,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 928 states and 1193 transitions. [2024-11-14 05:23:18,966 INFO L78 Accepts]: Start accepts. Automaton has 928 states and 1193 transitions. Word has length 78 [2024-11-14 05:23:18,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:23:18,966 INFO L471 AbstractCegarLoop]: Abstraction has 928 states and 1193 transitions. [2024-11-14 05:23:18,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 14.363636363636363) internal successors, (158), 12 states have internal predecessors, (158), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-14 05:23:18,967 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states and 1193 transitions. [2024-11-14 05:23:18,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-14 05:23:18,967 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:23:18,967 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:23:18,988 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-14 05:23:19,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-14 05:23:19,168 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:23:19,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:23:19,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1309108031, now seen corresponding path program 1 times [2024-11-14 05:23:19,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:23:19,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914280402] [2024-11-14 05:23:19,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:23:19,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:23:19,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:23:19,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1670972509] [2024-11-14 05:23:19,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:23:19,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:23:19,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:23:19,188 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:23:19,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-14 05:23:19,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:23:19,255 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-14 05:23:19,256 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:23:19,438 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 05:23:19,438 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:23:20,022 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 05:23:20,022 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:23:20,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914280402] [2024-11-14 05:23:20,022 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:23:20,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1670972509] [2024-11-14 05:23:20,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1670972509] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:23:20,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [556790543] [2024-11-14 05:23:20,024 INFO L159 IcfgInterpreter]: Started Sifa with 54 locations of interest [2024-11-14 05:23:20,024 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:23:20,024 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:23:20,024 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:23:20,024 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:23:22,144 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 51 for LOIs [2024-11-14 05:23:22,150 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 05:23:22,158 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:23:28,940 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '32058#(and (exists ((|v_ULTIMATE.start_main_~yx~0#1_117| Int) (|v_ULTIMATE.start_main_~x~0#1_105| Int)) (and (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~X~0#1| 20) (<= 0 |ULTIMATE.start_main_~Y~0#1|) (<= (+ |ULTIMATE.start_main_~X~0#1| 1) |v_ULTIMATE.start_main_~x~0#1_105|) (<= (* |v_ULTIMATE.start_main_~x~0#1_105| |ULTIMATE.start_main_~y~0#1|) 9223372036854775807) (<= 0 |v_ULTIMATE.start_main_~yx~0#1_117|) (<= 4611686018427387904 (* |v_ULTIMATE.start_main_~x~0#1_105| |ULTIMATE.start_main_~y~0#1|)) (<= |ULTIMATE.start_main_~Y~0#1| 20) (<= 0 |ULTIMATE.start_main_~X~0#1|) (= |ULTIMATE.start_main_~yx~0#1| (* |v_ULTIMATE.start_main_~x~0#1_105| |ULTIMATE.start_main_~Y~0#1|)))) (<= |ULTIMATE.start_main_~yx~0#1| 4611686018427387903))' at error location [2024-11-14 05:23:28,941 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:23:28,941 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 05:23:28,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2024-11-14 05:23:28,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813913724] [2024-11-14 05:23:28,941 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 05:23:28,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-14 05:23:28,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:23:28,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-14 05:23:28,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=1430, Unknown=0, NotChecked=0, Total=1560 [2024-11-14 05:23:28,942 INFO L87 Difference]: Start difference. First operand 928 states and 1193 transitions. Second operand has 14 states, 13 states have (on average 9.923076923076923) internal successors, (129), 14 states have internal predecessors, (129), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-14 05:23:31,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:23:31,278 INFO L93 Difference]: Finished difference Result 965 states and 1226 transitions. [2024-11-14 05:23:31,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-14 05:23:31,278 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 9.923076923076923) internal successors, (129), 14 states have internal predecessors, (129), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 78 [2024-11-14 05:23:31,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:23:31,280 INFO L225 Difference]: With dead ends: 965 [2024-11-14 05:23:31,281 INFO L226 Difference]: Without dead ends: 963 [2024-11-14 05:23:31,281 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 160 SyntacticMatches, 34 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1137 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=210, Invalid=2340, Unknown=0, NotChecked=0, Total=2550 [2024-11-14 05:23:31,282 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 215 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 925 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-14 05:23:31,282 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 618 Invalid, 935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 925 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-14 05:23:31,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2024-11-14 05:23:31,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 936. [2024-11-14 05:23:31,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 936 states, 876 states have (on average 1.317351598173516) internal successors, (1154), 910 states have internal predecessors, (1154), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-14 05:23:31,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1200 transitions. [2024-11-14 05:23:31,330 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1200 transitions. Word has length 78 [2024-11-14 05:23:31,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:23:31,331 INFO L471 AbstractCegarLoop]: Abstraction has 936 states and 1200 transitions. [2024-11-14 05:23:31,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 9.923076923076923) internal successors, (129), 14 states have internal predecessors, (129), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-14 05:23:31,331 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1200 transitions. [2024-11-14 05:23:31,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-14 05:23:31,332 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:23:31,332 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:23:31,350 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-14 05:23:31,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-14 05:23:31,532 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:23:31,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:23:31,532 INFO L85 PathProgramCache]: Analyzing trace with hash 433172375, now seen corresponding path program 1 times [2024-11-14 05:23:31,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:23:31,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359681419] [2024-11-14 05:23:31,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:23:31,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:23:31,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:23:31,612 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 05:23:31,612 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:23:31,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359681419] [2024-11-14 05:23:31,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359681419] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:23:31,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1330002748] [2024-11-14 05:23:31,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:23:31,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:23:31,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:23:31,615 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:23:31,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-14 05:23:31,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:23:31,670 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:23:31,671 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:23:31,766 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 05:23:31,767 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:23:31,893 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 05:23:31,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1330002748] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:23:31,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [41010405] [2024-11-14 05:23:31,895 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-14 05:23:31,896 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:23:31,896 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:23:31,896 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:23:31,896 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:23:33,980 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 105 for LOIs [2024-11-14 05:23:34,012 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 05:23:34,020 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:23:38,040 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '34583#(and (<= (* 2 |ULTIMATE.start_main_~Y~0#1|) (+ |ULTIMATE.start_main_~v~0#1| (* 2 |ULTIMATE.start_main_~X~0#1|))) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~X~0#1| 20) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~X~0#1|) (<= 0 |ULTIMATE.start_main_~Y~0#1|) (<= 0 |ULTIMATE.start_main_~yx~0#1|) (<= |ULTIMATE.start_main_~v~0#1| 9223372036854775807) (<= 0 |ULTIMATE.start_main_~xy~0#1|) (<= |ULTIMATE.start_main_~Y~0#1| 20))' at error location [2024-11-14 05:23:38,040 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:23:38,040 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:23:38,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-14 05:23:38,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954285015] [2024-11-14 05:23:38,041 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:23:38,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-14 05:23:38,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:23:38,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-14 05:23:38,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=1003, Unknown=0, NotChecked=0, Total=1122 [2024-11-14 05:23:38,042 INFO L87 Difference]: Start difference. First operand 936 states and 1200 transitions. Second operand has 12 states, 11 states have (on average 14.636363636363637) internal successors, (161), 12 states have internal predecessors, (161), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-14 05:23:38,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:23:38,227 INFO L93 Difference]: Finished difference Result 1128 states and 1381 transitions. [2024-11-14 05:23:38,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-14 05:23:38,227 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 14.636363636363637) internal successors, (161), 12 states have internal predecessors, (161), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 79 [2024-11-14 05:23:38,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:23:38,230 INFO L225 Difference]: With dead ends: 1128 [2024-11-14 05:23:38,230 INFO L226 Difference]: Without dead ends: 1127 [2024-11-14 05:23:38,230 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 170 SyntacticMatches, 38 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1274 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=119, Invalid=1003, Unknown=0, NotChecked=0, Total=1122 [2024-11-14 05:23:38,230 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 296 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:23:38,230 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 578 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:23:38,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2024-11-14 05:23:38,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 989. [2024-11-14 05:23:38,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 928 states have (on average 1.3189655172413792) internal successors, (1224), 962 states have internal predecessors, (1224), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-14 05:23:38,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1272 transitions. [2024-11-14 05:23:38,300 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1272 transitions. Word has length 79 [2024-11-14 05:23:38,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:23:38,300 INFO L471 AbstractCegarLoop]: Abstraction has 989 states and 1272 transitions. [2024-11-14 05:23:38,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 14.636363636363637) internal successors, (161), 12 states have internal predecessors, (161), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-14 05:23:38,301 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1272 transitions. [2024-11-14 05:23:38,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-14 05:23:38,301 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:23:38,302 INFO L215 NwaCegarLoop]: trace histogram [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, 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 05:23:38,323 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-14 05:23:38,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:23:38,502 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:23:38,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:23:38,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1008150588, now seen corresponding path program 1 times [2024-11-14 05:23:38,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:23:38,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115135050] [2024-11-14 05:23:38,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:23:38,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:23:38,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:23:38,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [274127278] [2024-11-14 05:23:38,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:23:38,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:23:38,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:23:38,532 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:23:38,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-14 05:23:38,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:23:38,597 INFO L255 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-14 05:23:38,599 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:23:39,058 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-14 05:23:39,058 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:23:39,961 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:23:39,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115135050] [2024-11-14 05:23:39,961 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:23:39,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [274127278] [2024-11-14 05:23:39,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [274127278] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:23:39,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [822733971] [2024-11-14 05:23:39,962 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2024-11-14 05:23:39,962 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:23:39,962 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:23:39,962 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:23:39,962 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:23:43,360 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 113 for LOIs [2024-11-14 05:23:43,389 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 05:23:43,398 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:23:50,997 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '37129#(and (<= 0 (+ 9223372036854775809 |ULTIMATE.start_main_~X~0#1|)) (<= |ULTIMATE.start_main_~v~0#1| 9223372036854775807) (exists ((|v_ULTIMATE.start_main_~Y~0#1_88| Int) (|v_ULTIMATE.start_main_~x~0#1_120| Int)) (and (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~x~0#1_120| |v_ULTIMATE.start_main_~Y~0#1_88|)) (<= 0 (+ |v_ULTIMATE.start_main_~Y~0#1_88| 13835058055282163713)) (<= |v_ULTIMATE.start_main_~x~0#1_120| 9223372036854775807) (<= 0 (+ |v_ULTIMATE.start_main_~x~0#1_120| 9223372036854775808)))) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~v~0#1|)))' at error location [2024-11-14 05:23:50,997 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:23:50,998 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:23:50,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-14 05:23:50,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452693589] [2024-11-14 05:23:50,998 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 05:23:50,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-14 05:23:50,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:23:50,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-14 05:23:50,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=296, Invalid=3126, Unknown=0, NotChecked=0, Total=3422 [2024-11-14 05:23:51,000 INFO L87 Difference]: Start difference. First operand 989 states and 1272 transitions. Second operand has 12 states, 10 states have (on average 7.2) internal successors, (72), 12 states have internal predecessors, (72), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-14 05:23:51,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:23:51,866 INFO L93 Difference]: Finished difference Result 1006 states and 1283 transitions. [2024-11-14 05:23:51,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-14 05:23:51,866 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 7.2) internal successors, (72), 12 states have internal predecessors, (72), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 81 [2024-11-14 05:23:51,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:23:51,868 INFO L225 Difference]: With dead ends: 1006 [2024-11-14 05:23:51,868 INFO L226 Difference]: Without dead ends: 1005 [2024-11-14 05:23:51,869 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 119 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1411 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=360, Invalid=4196, Unknown=0, NotChecked=0, Total=4556 [2024-11-14 05:23:51,869 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 215 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 1136 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 1139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 05:23:51,869 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 534 Invalid, 1139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1136 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 05:23:51,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1005 states. [2024-11-14 05:23:51,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1005 to 989. [2024-11-14 05:23:51,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 928 states have (on average 1.3178879310344827) internal successors, (1223), 962 states have internal predecessors, (1223), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-14 05:23:51,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1271 transitions. [2024-11-14 05:23:51,921 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1271 transitions. Word has length 81 [2024-11-14 05:23:51,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:23:51,921 INFO L471 AbstractCegarLoop]: Abstraction has 989 states and 1271 transitions. [2024-11-14 05:23:51,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 7.2) internal successors, (72), 12 states have internal predecessors, (72), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-14 05:23:51,922 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1271 transitions. [2024-11-14 05:23:51,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-14 05:23:51,922 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:23:51,922 INFO L215 NwaCegarLoop]: trace histogram [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, 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 05:23:51,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-11-14 05:23:52,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2024-11-14 05:23:52,123 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:23:52,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:23:52,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1275430944, now seen corresponding path program 2 times [2024-11-14 05:23:52,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:23:52,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744171222] [2024-11-14 05:23:52,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:23:52,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:23:52,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:23:52,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [435477215] [2024-11-14 05:23:52,137 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 05:23:52,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:23:52,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:23:52,139 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:23:52,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-14 05:23:52,196 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-14 05:23:52,196 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:23:52,197 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-14 05:23:52,198 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:23:52,598 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-14 05:23:52,598 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:23:53,201 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:23:53,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744171222] [2024-11-14 05:23:53,201 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:23:53,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [435477215] [2024-11-14 05:23:53,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [435477215] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:23:53,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1742806185] [2024-11-14 05:23:53,202 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2024-11-14 05:23:53,202 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:23:53,202 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:23:53,203 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:23:53,203 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:23:56,457 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 113 for LOIs [2024-11-14 05:23:56,486 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 05:23:56,493 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:24:03,676 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '39576#(and (<= 0 (+ 9223372036854775809 |ULTIMATE.start_main_~X~0#1|)) (<= |ULTIMATE.start_main_~v~0#1| 9223372036854775807) (exists ((|v_ULTIMATE.start_main_~x~0#1_127| Int) (|v_ULTIMATE.start_main_~Y~0#1_89| Int)) (and (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~x~0#1_127| |v_ULTIMATE.start_main_~Y~0#1_89|)) (<= 0 (+ |v_ULTIMATE.start_main_~Y~0#1_89| 13835058055282163713)) (<= 0 (+ |v_ULTIMATE.start_main_~x~0#1_127| 9223372036854775808)) (<= |v_ULTIMATE.start_main_~x~0#1_127| 9223372036854775807))) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~v~0#1|)))' at error location [2024-11-14 05:24:03,676 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:24:03,676 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:24:03,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-14 05:24:03,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088779495] [2024-11-14 05:24:03,676 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 05:24:03,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 05:24:03,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:24:03,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 05:24:03,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=280, Invalid=2690, Unknown=0, NotChecked=0, Total=2970 [2024-11-14 05:24:03,678 INFO L87 Difference]: Start difference. First operand 989 states and 1271 transitions. Second operand has 8 states, 6 states have (on average 8.666666666666666) internal successors, (52), 8 states have internal predecessors, (52), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 05:24:04,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:24:04,022 INFO L93 Difference]: Finished difference Result 989 states and 1271 transitions. [2024-11-14 05:24:04,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-14 05:24:04,022 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 8.666666666666666) internal successors, (52), 8 states have internal predecessors, (52), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 81 [2024-11-14 05:24:04,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:24:04,025 INFO L225 Difference]: With dead ends: 989 [2024-11-14 05:24:04,025 INFO L226 Difference]: Without dead ends: 987 [2024-11-14 05:24:04,026 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 119 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1096 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=305, Invalid=3001, Unknown=0, NotChecked=0, Total=3306 [2024-11-14 05:24:04,027 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 105 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:24:04,027 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 163 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:24:04,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 987 states. [2024-11-14 05:24:04,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 987 to 777. [2024-11-14 05:24:04,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 777 states, 723 states have (on average 1.309820193637621) internal successors, (947), 755 states have internal predecessors, (947), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-14 05:24:04,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 777 states to 777 states and 985 transitions. [2024-11-14 05:24:04,082 INFO L78 Accepts]: Start accepts. Automaton has 777 states and 985 transitions. Word has length 81 [2024-11-14 05:24:04,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:24:04,082 INFO L471 AbstractCegarLoop]: Abstraction has 777 states and 985 transitions. [2024-11-14 05:24:04,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 8.666666666666666) internal successors, (52), 8 states have internal predecessors, (52), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 05:24:04,082 INFO L276 IsEmpty]: Start isEmpty. Operand 777 states and 985 transitions. [2024-11-14 05:24:04,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-14 05:24:04,083 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:24:04,083 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:24:04,103 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-11-14 05:24:04,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:24:04,284 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:24:04,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:24:04,284 INFO L85 PathProgramCache]: Analyzing trace with hash -2016298437, now seen corresponding path program 1 times [2024-11-14 05:24:04,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:24:04,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359542138] [2024-11-14 05:24:04,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:04,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:24:04,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:04,353 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 05:24:04,354 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:24:04,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359542138] [2024-11-14 05:24:04,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359542138] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:24:04,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2090402437] [2024-11-14 05:24:04,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:04,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:24:04,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:24:04,356 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:24:04,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-14 05:24:04,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:04,412 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:24:04,413 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:24:04,551 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 05:24:04,551 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:24:04,722 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 05:24:04,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2090402437] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-14 05:24:04,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-14 05:24:04,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 8 [2024-11-14 05:24:04,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965094214] [2024-11-14 05:24:04,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:24:04,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:24:04,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:24:04,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:24:04,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-14 05:24:04,724 INFO L87 Difference]: Start difference. First operand 777 states and 985 transitions. Second operand has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 05:24:05,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:24:05,095 INFO L93 Difference]: Finished difference Result 945 states and 1213 transitions. [2024-11-14 05:24:05,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 05:24:05,095 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 82 [2024-11-14 05:24:05,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:24:05,098 INFO L225 Difference]: With dead ends: 945 [2024-11-14 05:24:05,098 INFO L226 Difference]: Without dead ends: 943 [2024-11-14 05:24:05,098 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-14 05:24:05,099 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 99 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:24:05,099 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 198 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 05:24:05,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 943 states. [2024-11-14 05:24:05,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 943 to 918. [2024-11-14 05:24:05,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 861 states have (on average 1.3310104529616724) internal successors, (1146), 893 states have internal predecessors, (1146), 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 05:24:05,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1190 transitions. [2024-11-14 05:24:05,139 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1190 transitions. Word has length 82 [2024-11-14 05:24:05,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:24:05,139 INFO L471 AbstractCegarLoop]: Abstraction has 918 states and 1190 transitions. [2024-11-14 05:24:05,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 05:24:05,139 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1190 transitions. [2024-11-14 05:24:05,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-14 05:24:05,140 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:24:05,140 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:24:05,152 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-14 05:24:05,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2024-11-14 05:24:05,340 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:24:05,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:24:05,341 INFO L85 PathProgramCache]: Analyzing trace with hash -632542179, now seen corresponding path program 1 times [2024-11-14 05:24:05,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:24:05,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377276866] [2024-11-14 05:24:05,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:05,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:24:05,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:05,504 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-14 05:24:05,505 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:24:05,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377276866] [2024-11-14 05:24:05,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377276866] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:24:05,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:24:05,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 05:24:05,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091747849] [2024-11-14 05:24:05,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:24:05,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 05:24:05,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:24:05,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 05:24:05,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:24:05,506 INFO L87 Difference]: Start difference. First operand 918 states and 1190 transitions. Second operand has 7 states, 5 states have (on average 15.0) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 05:24:05,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:24:05,866 INFO L93 Difference]: Finished difference Result 920 states and 1191 transitions. [2024-11-14 05:24:05,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 05:24:05,867 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 15.0) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 84 [2024-11-14 05:24:05,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:24:05,870 INFO L225 Difference]: With dead ends: 920 [2024-11-14 05:24:05,870 INFO L226 Difference]: Without dead ends: 919 [2024-11-14 05:24:05,870 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-14 05:24:05,872 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 145 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:24:05,872 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 192 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 05:24:05,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2024-11-14 05:24:05,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 918. [2024-11-14 05:24:05,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 861 states have (on average 1.329849012775842) internal successors, (1145), 893 states have internal predecessors, (1145), 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 05:24:05,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1189 transitions. [2024-11-14 05:24:05,927 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1189 transitions. Word has length 84 [2024-11-14 05:24:05,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:24:05,927 INFO L471 AbstractCegarLoop]: Abstraction has 918 states and 1189 transitions. [2024-11-14 05:24:05,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 15.0) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 05:24:05,927 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1189 transitions. [2024-11-14 05:24:05,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-14 05:24:05,928 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:24:05,928 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 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 05:24:05,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-11-14 05:24:05,928 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:24:05,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:24:05,928 INFO L85 PathProgramCache]: Analyzing trace with hash -892077153, now seen corresponding path program 1 times [2024-11-14 05:24:05,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:24:05,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162068711] [2024-11-14 05:24:05,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:05,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:24:05,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:24:05,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1071634452] [2024-11-14 05:24:05,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:05,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:24:05,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:24:05,946 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:24:05,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-14 05:24:06,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:06,006 INFO L255 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-14 05:24:06,008 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:24:06,282 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 05:24:06,282 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:24:06,984 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 3 proven. 34 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 05:24:06,985 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:24:06,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162068711] [2024-11-14 05:24:06,985 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:24:06,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1071634452] [2024-11-14 05:24:06,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1071634452] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:24:06,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1386517748] [2024-11-14 05:24:06,986 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2024-11-14 05:24:06,986 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:24:06,987 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:24:06,987 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:24:06,987 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:24:10,454 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 113 for LOIs [2024-11-14 05:24:10,493 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 05:24:10,501 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:24:19,016 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '46392#(and (= (* |ULTIMATE.start_main_~X~0#1| |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_main_~xy~0#1|) (<= 0 (+ (* |ULTIMATE.start_main_~Y~0#1| |ULTIMATE.start_main_~x~0#1|) 9223372036854775808)) (<= |ULTIMATE.start_main_~x~0#1| 9223372036854775807) (<= 0 (+ 9223372036854775809 |ULTIMATE.start_main_~X~0#1|)) (<= |ULTIMATE.start_main_~v~0#1| 9223372036854775807) (<= (* |ULTIMATE.start_main_~X~0#1| |ULTIMATE.start_main_~y~0#1|) 9223372036854775807) (<= (+ (* |ULTIMATE.start_main_~Y~0#1| |ULTIMATE.start_main_~x~0#1|) 4611686018427387905) 0) (<= 0 (+ (* |ULTIMATE.start_main_~X~0#1| |ULTIMATE.start_main_~y~0#1|) 9223372036854775808)) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~v~0#1|)))' at error location [2024-11-14 05:24:19,016 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:24:19,016 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 05:24:19,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2024-11-14 05:24:19,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545721155] [2024-11-14 05:24:19,016 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 05:24:19,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-14 05:24:19,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:24:19,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-14 05:24:19,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=335, Invalid=3571, Unknown=0, NotChecked=0, Total=3906 [2024-11-14 05:24:19,018 INFO L87 Difference]: Start difference. First operand 918 states and 1189 transitions. Second operand has 20 states, 19 states have (on average 7.421052631578948) internal successors, (141), 20 states have internal predecessors, (141), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-14 05:24:24,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:24:24,203 INFO L93 Difference]: Finished difference Result 1647 states and 2174 transitions. [2024-11-14 05:24:24,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-14 05:24:24,204 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 7.421052631578948) internal successors, (141), 20 states have internal predecessors, (141), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 84 [2024-11-14 05:24:24,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:24:24,208 INFO L225 Difference]: With dead ends: 1647 [2024-11-14 05:24:24,208 INFO L226 Difference]: Without dead ends: 1646 [2024-11-14 05:24:24,210 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 187 SyntacticMatches, 2 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2949 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=758, Invalid=7984, Unknown=0, NotChecked=0, Total=8742 [2024-11-14 05:24:24,210 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 632 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 1646 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 633 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 1680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:24:24,210 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [633 Valid, 611 Invalid, 1680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1646 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-14 05:24:24,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2024-11-14 05:24:24,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 1449. [2024-11-14 05:24:24,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1449 states, 1375 states have (on average 1.3672727272727272) internal successors, (1880), 1407 states have internal predecessors, (1880), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-14 05:24:24,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1449 states to 1449 states and 1958 transitions. [2024-11-14 05:24:24,295 INFO L78 Accepts]: Start accepts. Automaton has 1449 states and 1958 transitions. Word has length 84 [2024-11-14 05:24:24,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:24:24,295 INFO L471 AbstractCegarLoop]: Abstraction has 1449 states and 1958 transitions. [2024-11-14 05:24:24,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 7.421052631578948) internal successors, (141), 20 states have internal predecessors, (141), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-14 05:24:24,296 INFO L276 IsEmpty]: Start isEmpty. Operand 1449 states and 1958 transitions. [2024-11-14 05:24:24,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-14 05:24:24,296 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:24:24,296 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 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 05:24:24,310 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-11-14 05:24:24,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:24:24,498 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:24:24,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:24:24,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1212471675, now seen corresponding path program 2 times [2024-11-14 05:24:24,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:24:24,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324090546] [2024-11-14 05:24:24,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:24,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:24:24,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:24:24,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [695618666] [2024-11-14 05:24:24,512 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 05:24:24,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:24:24,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:24:24,517 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:24:24,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-14 05:24:24,573 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-14 05:24:24,574 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:24:24,575 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-14 05:24:24,576 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:24:30,016 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 30 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-14 05:24:30,016 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:24:32,266 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:24:32,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324090546] [2024-11-14 05:24:32,266 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:24:32,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [695618666] [2024-11-14 05:24:32,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [695618666] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:24:32,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1538902857] [2024-11-14 05:24:32,267 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2024-11-14 05:24:32,267 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:24:32,267 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:24:32,267 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:24:32,267 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:24:35,700 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 113 for LOIs [2024-11-14 05:24:35,730 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 05:24:35,737 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:24:46,602 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '50173#(and (= (* |ULTIMATE.start_main_~X~0#1| |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_main_~xy~0#1|) (<= 0 (+ (* |ULTIMATE.start_main_~Y~0#1| |ULTIMATE.start_main_~x~0#1|) 9223372036854775808)) (<= |ULTIMATE.start_main_~x~0#1| 9223372036854775807) (<= 0 (+ 9223372036854775809 |ULTIMATE.start_main_~X~0#1|)) (<= |ULTIMATE.start_main_~v~0#1| 9223372036854775807) (<= (* |ULTIMATE.start_main_~X~0#1| |ULTIMATE.start_main_~y~0#1|) 9223372036854775807) (<= (+ (* |ULTIMATE.start_main_~Y~0#1| |ULTIMATE.start_main_~x~0#1|) 4611686018427387905) 0) (<= 0 (+ (* |ULTIMATE.start_main_~X~0#1| |ULTIMATE.start_main_~y~0#1|) 9223372036854775808)) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~v~0#1|)))' at error location [2024-11-14 05:24:46,602 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:24:46,602 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:24:46,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-14 05:24:46,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918441085] [2024-11-14 05:24:46,602 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 05:24:46,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-14 05:24:46,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:24:46,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-14 05:24:46,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=3353, Unknown=1, NotChecked=0, Total=3660 [2024-11-14 05:24:46,603 INFO L87 Difference]: Start difference. First operand 1449 states and 1958 transitions. Second operand has 12 states, 9 states have (on average 8.222222222222221) internal successors, (74), 12 states have internal predecessors, (74), 3 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 05:24:49,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:24:51,528 WARN L539 Checker$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 05:24:53,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:24:55,676 WARN L539 Checker$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 05:24:59,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:25:01,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:25:06,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:25:10,395 WARN L539 Checker$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 05:25:12,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:25:24,213 WARN L539 Checker$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 05:25:26,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:25:28,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:25:31,187 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:25:33,261 WARN L539 Checker$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 05:25:35,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:25:37,031 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:25:42,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:25:42,773 INFO L93 Difference]: Finished difference Result 1449 states and 1958 transitions. [2024-11-14 05:25:42,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-14 05:25:42,773 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 8.222222222222221) internal successors, (74), 12 states have internal predecessors, (74), 3 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 84 [2024-11-14 05:25:42,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:25:42,776 INFO L225 Difference]: With dead ends: 1449 [2024-11-14 05:25:42,776 INFO L226 Difference]: Without dead ends: 1448 [2024-11-14 05:25:42,777 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 157 SyntacticMatches, 3 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1608 ImplicationChecksByTransitivity, 37.5s TimeCoverageRelationStatistics Valid=374, Invalid=4040, Unknown=8, NotChecked=0, Total=4422 [2024-11-14 05:25:42,777 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 230 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 11 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:25:42,778 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 202 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 424 Invalid, 13 Unknown, 0 Unchecked, 36.3s Time] [2024-11-14 05:25:42,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1448 states. [2024-11-14 05:25:42,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1448 to 917. [2024-11-14 05:25:42,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 861 states have (on average 1.3147502903600465) internal successors, (1132), 892 states have internal predecessors, (1132), 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 05:25:42,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1176 transitions. [2024-11-14 05:25:42,843 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1176 transitions. Word has length 84 [2024-11-14 05:25:42,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:25:42,843 INFO L471 AbstractCegarLoop]: Abstraction has 917 states and 1176 transitions. [2024-11-14 05:25:42,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 8.222222222222221) internal successors, (74), 12 states have internal predecessors, (74), 3 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 05:25:42,843 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1176 transitions. [2024-11-14 05:25:42,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-14 05:25:42,844 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:25:42,844 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 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 05:25:42,857 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-11-14 05:25:43,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2024-11-14 05:25:43,045 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:25:43,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:25:43,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1884587904, now seen corresponding path program 1 times [2024-11-14 05:25:43,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:25:43,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765817669] [2024-11-14 05:25:43,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:25:43,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:25:43,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:25:43,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1702859778] [2024-11-14 05:25:43,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:25:43,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:25:43,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:25:43,062 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:25:43,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-14 05:25:43,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:25:43,123 INFO L255 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-14 05:25:43,124 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:25:43,512 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-14 05:25:43,513 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:25:44,880 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-14 05:25:44,880 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:25:44,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765817669] [2024-11-14 05:25:44,880 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:25:44,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1702859778] [2024-11-14 05:25:44,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1702859778] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:25:44,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1074871467] [2024-11-14 05:25:44,881 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2024-11-14 05:25:44,882 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:25:44,882 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:25:44,882 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:25:44,882 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:25:48,159 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 113 for LOIs [2024-11-14 05:25:48,189 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 05:25:48,196 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:25:56,891 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '53244#(and (<= |ULTIMATE.start_main_~x~0#1| 9223372036854775807) (<= 0 (+ 9223372036854775809 |ULTIMATE.start_main_~X~0#1|)) (<= |ULTIMATE.start_main_~v~0#1| 9223372036854775807) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~x~0#1|)) (<= 0 (+ |ULTIMATE.start_main_~Y~0#1| 13835058055282163713)) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~v~0#1|)))' at error location [2024-11-14 05:25:56,891 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:25:56,891 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 05:25:56,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2024-11-14 05:25:56,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16470215] [2024-11-14 05:25:56,892 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 05:25:56,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-14 05:25:56,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:25:56,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-14 05:25:56,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=3360, Unknown=0, NotChecked=0, Total=3660 [2024-11-14 05:25:56,893 INFO L87 Difference]: Start difference. First operand 917 states and 1176 transitions. Second operand has 19 states, 17 states have (on average 8.705882352941176) internal successors, (148), 19 states have internal predecessors, (148), 7 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 6 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-14 05:26:08,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:26:08,223 INFO L93 Difference]: Finished difference Result 1333 states and 1672 transitions. [2024-11-14 05:26:08,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-14 05:26:08,224 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 8.705882352941176) internal successors, (148), 19 states have internal predecessors, (148), 7 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 6 states have call predecessors, (8), 7 states have call successors, (8) Word has length 85 [2024-11-14 05:26:08,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:26:08,229 INFO L225 Difference]: With dead ends: 1333 [2024-11-14 05:26:08,229 INFO L226 Difference]: Without dead ends: 1332 [2024-11-14 05:26:08,231 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 192 SyntacticMatches, 2 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2604 ImplicationChecksByTransitivity, 12.1s TimeCoverageRelationStatistics Valid=738, Invalid=7452, Unknown=0, NotChecked=0, Total=8190 [2024-11-14 05:26:08,231 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 691 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 1704 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 691 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 1727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2024-11-14 05:26:08,232 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [691 Valid, 464 Invalid, 1727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1704 Invalid, 0 Unknown, 0 Unchecked, 8.8s Time] [2024-11-14 05:26:08,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1332 states. [2024-11-14 05:26:08,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1332 to 1101. [2024-11-14 05:26:08,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1101 states, 1041 states have (on average 1.292987512007685) internal successors, (1346), 1072 states have internal predecessors, (1346), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-14 05:26:08,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1101 states to 1101 states and 1398 transitions. [2024-11-14 05:26:08,369 INFO L78 Accepts]: Start accepts. Automaton has 1101 states and 1398 transitions. Word has length 85 [2024-11-14 05:26:08,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:26:08,369 INFO L471 AbstractCegarLoop]: Abstraction has 1101 states and 1398 transitions. [2024-11-14 05:26:08,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 8.705882352941176) internal successors, (148), 19 states have internal predecessors, (148), 7 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 6 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-14 05:26:08,369 INFO L276 IsEmpty]: Start isEmpty. Operand 1101 states and 1398 transitions. [2024-11-14 05:26:08,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-14 05:26:08,370 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:26:08,370 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 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 05:26:08,393 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-11-14 05:26:08,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2024-11-14 05:26:08,575 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:26:08,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:26:08,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1068083676, now seen corresponding path program 2 times [2024-11-14 05:26:08,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:26:08,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960382929] [2024-11-14 05:26:08,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:26:08,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:26:08,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:26:08,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1239381583] [2024-11-14 05:26:08,590 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 05:26:08,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:26:08,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:26:08,592 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:26:08,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-14 05:26:08,670 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-14 05:26:08,670 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:26:08,671 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-14 05:26:08,673 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:26:09,478 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 18 proven. 18 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-14 05:26:09,478 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:26:10,428 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:26:10,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960382929] [2024-11-14 05:26:10,428 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:26:10,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1239381583] [2024-11-14 05:26:10,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1239381583] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:26:10,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1236877923] [2024-11-14 05:26:10,430 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2024-11-14 05:26:10,430 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:26:10,430 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:26:10,431 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:26:10,431 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:26:14,942 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 113 for LOIs [2024-11-14 05:26:14,972 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 05:26:14,982 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:26:27,982 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '56325#(and (<= |ULTIMATE.start_main_~x~0#1| 9223372036854775807) (<= 0 (+ 9223372036854775809 |ULTIMATE.start_main_~X~0#1|)) (<= |ULTIMATE.start_main_~v~0#1| 9223372036854775807) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~x~0#1|)) (<= 0 (+ |ULTIMATE.start_main_~Y~0#1| 13835058055282163713)) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~v~0#1|)))' at error location [2024-11-14 05:26:27,982 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:26:27,982 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:26:27,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-14 05:26:27,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672412871] [2024-11-14 05:26:27,982 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 05:26:27,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-14 05:26:27,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:26:27,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-14 05:26:27,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=295, Invalid=3245, Unknown=0, NotChecked=0, Total=3540 [2024-11-14 05:26:27,983 INFO L87 Difference]: Start difference. First operand 1101 states and 1398 transitions. Second operand has 12 states, 9 states have (on average 8.222222222222221) internal successors, (74), 12 states have internal predecessors, (74), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-14 05:26:32,006 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 05:26:32,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:26:32,349 INFO L93 Difference]: Finished difference Result 1101 states and 1398 transitions. [2024-11-14 05:26:32,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-14 05:26:32,350 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 8.222222222222221) internal successors, (74), 12 states have internal predecessors, (74), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) Word has length 85 [2024-11-14 05:26:32,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:26:32,352 INFO L225 Difference]: With dead ends: 1101 [2024-11-14 05:26:32,352 INFO L226 Difference]: Without dead ends: 1100 [2024-11-14 05:26:32,353 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 161 SyntacticMatches, 2 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1648 ImplicationChecksByTransitivity, 14.2s TimeCoverageRelationStatistics Valid=443, Invalid=4527, Unknown=0, NotChecked=0, Total=4970 [2024-11-14 05:26:32,353 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 251 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-14 05:26:32,353 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 118 Invalid, 595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 583 Invalid, 2 Unknown, 0 Unchecked, 3.7s Time] [2024-11-14 05:26:32,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1100 states. [2024-11-14 05:26:32,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1100 to 916. [2024-11-14 05:26:32,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 916 states, 861 states have (on average 1.2996515679442509) internal successors, (1119), 891 states have internal predecessors, (1119), 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 05:26:32,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 916 states to 916 states and 1163 transitions. [2024-11-14 05:26:32,428 INFO L78 Accepts]: Start accepts. Automaton has 916 states and 1163 transitions. Word has length 85 [2024-11-14 05:26:32,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:26:32,428 INFO L471 AbstractCegarLoop]: Abstraction has 916 states and 1163 transitions. [2024-11-14 05:26:32,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 8.222222222222221) internal successors, (74), 12 states have internal predecessors, (74), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-14 05:26:32,428 INFO L276 IsEmpty]: Start isEmpty. Operand 916 states and 1163 transitions. [2024-11-14 05:26:32,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-14 05:26:32,429 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:26:32,429 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:26:32,443 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-11-14 05:26:32,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2024-11-14 05:26:32,629 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:26:32,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:26:32,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1530647113, now seen corresponding path program 1 times [2024-11-14 05:26:32,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:26:32,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843073472] [2024-11-14 05:26:32,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:26:32,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:26:32,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:26:32,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [449774313] [2024-11-14 05:26:32,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:26:32,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:26:32,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:26:32,657 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:26:32,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-14 05:26:32,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:26:32,719 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-14 05:26:32,721 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:26:34,018 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:26:34,018 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:26:46,481 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:26:46,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843073472] [2024-11-14 05:26:46,482 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:26:46,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [449774313] [2024-11-14 05:26:46,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [449774313] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:26:46,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1027777108] [2024-11-14 05:26:46,483 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2024-11-14 05:26:46,483 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:26:46,483 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:26:46,483 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:26:46,483 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:26:49,018 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 51 for LOIs [2024-11-14 05:26:49,029 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 05:26:49,044 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:27:27,218 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '58950#(exists ((|v_ULTIMATE.start_main_~Y~0#1_97| Int) (|v_ULTIMATE.start_main_~yx~0#1_163| Int) (|v_ULTIMATE.start_main_~X~0#1_84| Int) (|v_ULTIMATE.start_main_~x~0#1_169| Int)) (and (<= (+ |v_ULTIMATE.start_main_~X~0#1_84| 1) |v_ULTIMATE.start_main_~x~0#1_169|) (<= (* |v_ULTIMATE.start_main_~x~0#1_169| |v_ULTIMATE.start_main_~Y~0#1_97|) 4611686018427387903) (<= 1 |#StackHeapBarrier|) (<= 0 |v_ULTIMATE.start_main_~yx~0#1_163|) (<= |v_ULTIMATE.start_main_~X~0#1_84| 20) (<= 0 |ULTIMATE.start_main_~y~0#1|) (<= (+ |v_ULTIMATE.start_main_~X~0#1_84| 9223372036854775808 (* 2 (* |v_ULTIMATE.start_main_~x~0#1_169| |ULTIMATE.start_main_~y~0#1|))) (+ (* 2 |v_ULTIMATE.start_main_~Y~0#1_97|) (* 2 (* |v_ULTIMATE.start_main_~x~0#1_169| |v_ULTIMATE.start_main_~Y~0#1_97|)))) (<= 0 |v_ULTIMATE.start_main_~X~0#1_84|) (<= |v_ULTIMATE.start_main_~Y~0#1_97| 20)))' at error location [2024-11-14 05:27:27,218 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:27:27,218 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:27:27,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-14 05:27:27,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153940423] [2024-11-14 05:27:27,218 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 05:27:27,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-14 05:27:27,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:27:27,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-14 05:27:27,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=304, Invalid=2663, Unknown=3, NotChecked=0, Total=2970 [2024-11-14 05:27:27,219 INFO L87 Difference]: Start difference. First operand 916 states and 1163 transitions. Second operand has 16 states, 13 states have (on average 6.0) internal successors, (78), 16 states have internal predecessors, (78), 3 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 05:27:29,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:27:29,232 INFO L93 Difference]: Finished difference Result 927 states and 1176 transitions. [2024-11-14 05:27:29,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-14 05:27:29,233 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 6.0) internal successors, (78), 16 states have internal predecessors, (78), 3 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 86 [2024-11-14 05:27:29,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:27:29,235 INFO L225 Difference]: With dead ends: 927 [2024-11-14 05:27:29,235 INFO L226 Difference]: Without dead ends: 926 [2024-11-14 05:27:29,236 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 131 SyntacticMatches, 40 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2219 ImplicationChecksByTransitivity, 50.7s TimeCoverageRelationStatistics Valid=365, Invalid=3054, Unknown=3, NotChecked=0, Total=3422 [2024-11-14 05:27:29,236 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 176 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 1126 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 1129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:27:29,236 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 278 Invalid, 1129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1126 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-14 05:27:29,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2024-11-14 05:27:29,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 920. [2024-11-14 05:27:29,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 920 states, 865 states have (on average 1.2982658959537572) internal successors, (1123), 895 states have internal predecessors, (1123), 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 05:27:29,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1167 transitions. [2024-11-14 05:27:29,291 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1167 transitions. Word has length 86 [2024-11-14 05:27:29,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:27:29,291 INFO L471 AbstractCegarLoop]: Abstraction has 920 states and 1167 transitions. [2024-11-14 05:27:29,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 6.0) internal successors, (78), 16 states have internal predecessors, (78), 3 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 05:27:29,291 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1167 transitions. [2024-11-14 05:27:29,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-14 05:27:29,292 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:27:29,292 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:27:29,306 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2024-11-14 05:27:29,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-11-14 05:27:29,492 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:27:29,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:27:29,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1111375841, now seen corresponding path program 1 times [2024-11-14 05:27:29,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:27:29,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643058482] [2024-11-14 05:27:29,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:27:29,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:27:29,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:27:29,591 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-14 05:27:29,591 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:27:29,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643058482] [2024-11-14 05:27:29,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643058482] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:27:29,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:27:29,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:27:29,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291991776] [2024-11-14 05:27:29,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:27:29,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:27:29,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:27:29,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:27:29,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:27:29,593 INFO L87 Difference]: Start difference. First operand 920 states and 1167 transitions. Second operand has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 05:27:29,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:27:29,919 INFO L93 Difference]: Finished difference Result 922 states and 1168 transitions. [2024-11-14 05:27:29,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:27:29,920 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 88 [2024-11-14 05:27:29,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:27:29,923 INFO L225 Difference]: With dead ends: 922 [2024-11-14 05:27:29,923 INFO L226 Difference]: Without dead ends: 899 [2024-11-14 05:27:29,924 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:27:29,924 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 13 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:27:29,924 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 176 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:27:29,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 899 states. [2024-11-14 05:27:29,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 899 to 899. [2024-11-14 05:27:29,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 899 states, 844 states have (on average 1.3033175355450237) internal successors, (1100), 874 states have internal predecessors, (1100), 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 05:27:29,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 899 states to 899 states and 1144 transitions. [2024-11-14 05:27:29,982 INFO L78 Accepts]: Start accepts. Automaton has 899 states and 1144 transitions. Word has length 88 [2024-11-14 05:27:29,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:27:29,982 INFO L471 AbstractCegarLoop]: Abstraction has 899 states and 1144 transitions. [2024-11-14 05:27:29,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 05:27:29,982 INFO L276 IsEmpty]: Start isEmpty. Operand 899 states and 1144 transitions. [2024-11-14 05:27:29,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-14 05:27:29,983 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:27:29,983 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 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 05:27:29,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-11-14 05:27:29,983 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:27:29,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:27:29,984 INFO L85 PathProgramCache]: Analyzing trace with hash 54309859, now seen corresponding path program 1 times [2024-11-14 05:27:29,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:27:29,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665897612] [2024-11-14 05:27:29,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:27:29,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:27:29,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:27:29,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [238631912] [2024-11-14 05:27:29,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:27:29,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:27:29,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:27:30,005 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:27:30,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-14 05:27:30,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:27:30,062 INFO L255 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-14 05:27:30,063 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:27:30,442 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 25 proven. 20 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 05:27:30,442 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:27:31,154 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:27:31,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665897612] [2024-11-14 05:27:31,154 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:27:31,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [238631912] [2024-11-14 05:27:31,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [238631912] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:27:31,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2001002425] [2024-11-14 05:27:31,155 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2024-11-14 05:27:31,156 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:27:31,156 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:27:31,156 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:27:31,156 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:27:35,356 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 113 for LOIs [2024-11-14 05:27:35,391 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 05:27:35,401 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:27:44,356 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '63193#(and (<= |ULTIMATE.start_main_~x~0#1| 9223372036854775807) (<= 0 (+ 9223372036854775809 |ULTIMATE.start_main_~X~0#1|)) (<= |ULTIMATE.start_main_~v~0#1| 9223372036854775807) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~x~0#1|)) (<= 0 (+ |ULTIMATE.start_main_~Y~0#1| 13835058055282163713)) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~v~0#1|)))' at error location [2024-11-14 05:27:44,356 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:27:44,356 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:27:44,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-14 05:27:44,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207429507] [2024-11-14 05:27:44,356 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 05:27:44,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-14 05:27:44,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:27:44,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-14 05:27:44,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=274, Invalid=3266, Unknown=0, NotChecked=0, Total=3540 [2024-11-14 05:27:44,357 INFO L87 Difference]: Start difference. First operand 899 states and 1144 transitions. Second operand has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 05:27:45,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:27:45,717 INFO L93 Difference]: Finished difference Result 1069 states and 1349 transitions. [2024-11-14 05:27:45,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-14 05:27:45,718 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 88 [2024-11-14 05:27:45,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:27:45,721 INFO L225 Difference]: With dead ends: 1069 [2024-11-14 05:27:45,721 INFO L226 Difference]: Without dead ends: 1067 [2024-11-14 05:27:45,722 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 139 SyntacticMatches, 2 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1706 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=408, Invalid=4562, Unknown=0, NotChecked=0, Total=4970 [2024-11-14 05:27:45,722 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 212 mSDsluCounter, 670 mSDsCounter, 0 mSdLazyCounter, 1145 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 1156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-14 05:27:45,722 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 810 Invalid, 1156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1145 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-14 05:27:45,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1067 states. [2024-11-14 05:27:45,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1067 to 899. [2024-11-14 05:27:45,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 899 states, 844 states have (on average 1.2950236966824644) internal successors, (1093), 874 states have internal predecessors, (1093), 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 05:27:45,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 899 states to 899 states and 1137 transitions. [2024-11-14 05:27:45,784 INFO L78 Accepts]: Start accepts. Automaton has 899 states and 1137 transitions. Word has length 88 [2024-11-14 05:27:45,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:27:45,784 INFO L471 AbstractCegarLoop]: Abstraction has 899 states and 1137 transitions. [2024-11-14 05:27:45,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 05:27:45,785 INFO L276 IsEmpty]: Start isEmpty. Operand 899 states and 1137 transitions. [2024-11-14 05:27:45,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-14 05:27:45,785 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:27:45,785 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:27:45,799 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2024-11-14 05:27:45,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2024-11-14 05:27:45,986 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:27:45,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:27:45,986 INFO L85 PathProgramCache]: Analyzing trace with hash 2073065643, now seen corresponding path program 1 times [2024-11-14 05:27:45,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:27:45,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480912475] [2024-11-14 05:27:45,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:27:45,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:27:45,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:27:46,163 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 05:27:46,164 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:27:46,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480912475] [2024-11-14 05:27:46,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480912475] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:27:46,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1045084556] [2024-11-14 05:27:46,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:27:46,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:27:46,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:27:46,167 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:27:46,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-14 05:27:46,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:27:46,231 INFO L255 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 05:27:46,233 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:27:46,644 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 05:27:46,644 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:27:46,946 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 05:27:46,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1045084556] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:27:46,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1775206559] [2024-11-14 05:27:46,948 INFO L159 IcfgInterpreter]: Started Sifa with 64 locations of interest [2024-11-14 05:27:46,948 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:27:46,948 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:27:46,948 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:27:46,948 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:27:49,189 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 51 for LOIs [2024-11-14 05:27:49,196 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 05:27:49,204 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:28:34,026 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '65870#(exists ((|v_ULTIMATE.start_main_~X~0#1_85| Int) (|v_ULTIMATE.start_main_~Y~0#1_98| Int) (|v_ULTIMATE.start_main_~yx~0#1_175| Int) (|v_ULTIMATE.start_main_~v~0#1_211| Int) (|v_ULTIMATE.start_main_~x~0#1_184| Int)) (and (<= 1 |#StackHeapBarrier|) (<= 0 |v_ULTIMATE.start_main_~yx~0#1_175|) (<= (* |v_ULTIMATE.start_main_~x~0#1_184| |ULTIMATE.start_main_~y~0#1|) 4611686018427387903) (<= 0 |v_ULTIMATE.start_main_~X~0#1_85|) (<= 0 |ULTIMATE.start_main_~y~0#1|) (<= (+ |v_ULTIMATE.start_main_~X~0#1_85| (* (* |v_ULTIMATE.start_main_~x~0#1_184| |ULTIMATE.start_main_~y~0#1|) 2)) (+ (* (* |v_ULTIMATE.start_main_~x~0#1_184| |v_ULTIMATE.start_main_~Y~0#1_98|) 2) 9223372036854775808)) (<= 0 |v_ULTIMATE.start_main_~Y~0#1_98|) (<= |v_ULTIMATE.start_main_~Y~0#1_98| 20) (<= (+ |v_ULTIMATE.start_main_~X~0#1_85| |v_ULTIMATE.start_main_~v~0#1_211| 9223372036854775808 (* (* |v_ULTIMATE.start_main_~x~0#1_184| |ULTIMATE.start_main_~y~0#1|) 2)) (+ (* 2 |v_ULTIMATE.start_main_~Y~0#1_98|) (* (* |v_ULTIMATE.start_main_~x~0#1_184| |v_ULTIMATE.start_main_~Y~0#1_98|) 2))) (<= (+ |v_ULTIMATE.start_main_~X~0#1_85| 1) |v_ULTIMATE.start_main_~x~0#1_184|) (<= |v_ULTIMATE.start_main_~X~0#1_85| 20) (<= (+ (* 2 |v_ULTIMATE.start_main_~Y~0#1_98|) (* (* |v_ULTIMATE.start_main_~x~0#1_184| |v_ULTIMATE.start_main_~Y~0#1_98|) 2)) (+ |v_ULTIMATE.start_main_~X~0#1_85| 9223372036854775807 (* (* |v_ULTIMATE.start_main_~x~0#1_184| |ULTIMATE.start_main_~y~0#1|) 2))) (<= (* |v_ULTIMATE.start_main_~x~0#1_184| |v_ULTIMATE.start_main_~Y~0#1_98|) 4611686018427387903)))' at error location [2024-11-14 05:28:34,026 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:28:34,026 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:28:34,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 22 [2024-11-14 05:28:34,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840761026] [2024-11-14 05:28:34,026 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:28:34,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-14 05:28:34,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:28:34,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-14 05:28:34,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=222, Invalid=2529, Unknown=5, NotChecked=0, Total=2756 [2024-11-14 05:28:34,027 INFO L87 Difference]: Start difference. First operand 899 states and 1137 transitions. Second operand has 23 states, 22 states have (on average 10.0) internal successors, (220), 23 states have internal predecessors, (220), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-14 05:28:35,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:28:35,130 INFO L93 Difference]: Finished difference Result 913 states and 1153 transitions. [2024-11-14 05:28:35,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-14 05:28:35,131 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 10.0) internal successors, (220), 23 states have internal predecessors, (220), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 88 [2024-11-14 05:28:35,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:28:35,134 INFO L225 Difference]: With dead ends: 913 [2024-11-14 05:28:35,134 INFO L226 Difference]: Without dead ends: 912 [2024-11-14 05:28:35,135 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 179 SyntacticMatches, 40 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2756 ImplicationChecksByTransitivity, 45.4s TimeCoverageRelationStatistics Valid=370, Invalid=3657, Unknown=5, NotChecked=0, Total=4032 [2024-11-14 05:28:35,135 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 225 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 967 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 05:28:35,135 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 562 Invalid, 979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 967 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 05:28:35,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 912 states. [2024-11-14 05:28:35,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 912 to 902. [2024-11-14 05:28:35,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 902 states, 847 states have (on average 1.2939787485242031) internal successors, (1096), 877 states have internal predecessors, (1096), 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 05:28:35,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 902 states to 902 states and 1140 transitions. [2024-11-14 05:28:35,232 INFO L78 Accepts]: Start accepts. Automaton has 902 states and 1140 transitions. Word has length 88 [2024-11-14 05:28:35,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:28:35,232 INFO L471 AbstractCegarLoop]: Abstraction has 902 states and 1140 transitions. [2024-11-14 05:28:35,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 10.0) internal successors, (220), 23 states have internal predecessors, (220), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-14 05:28:35,233 INFO L276 IsEmpty]: Start isEmpty. Operand 902 states and 1140 transitions. [2024-11-14 05:28:35,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-14 05:28:35,233 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:28:35,233 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 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 05:28:35,255 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2024-11-14 05:28:35,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52 [2024-11-14 05:28:35,434 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:28:35,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:28:35,434 INFO L85 PathProgramCache]: Analyzing trace with hash 2131968959, now seen corresponding path program 2 times [2024-11-14 05:28:35,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:28:35,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81901115] [2024-11-14 05:28:35,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:28:35,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:28:35,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:28:35,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1463581996] [2024-11-14 05:28:35,448 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 05:28:35,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:28:35,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:28:35,451 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:28:35,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-11-14 05:28:35,551 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-14 05:28:35,551 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:28:35,552 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-14 05:28:35,553 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:28:41,272 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 30 proven. 14 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-14 05:28:41,272 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:28:53,395 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:28:53,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81901115] [2024-11-14 05:28:53,395 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:28:53,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1463581996] [2024-11-14 05:28:53,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1463581996] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:28:53,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [650341784] [2024-11-14 05:28:53,397 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2024-11-14 05:28:53,397 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:28:53,397 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:28:53,397 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:28:53,397 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:28:57,568 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 113 for LOIs [2024-11-14 05:28:57,629 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 05:28:57,638 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:29:30,183 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '68276#(and (<= |ULTIMATE.start_main_~x~0#1| 9223372036854775807) (<= 0 (+ 9223372036854775809 |ULTIMATE.start_main_~X~0#1|)) (<= |ULTIMATE.start_main_~v~0#1| 9223372036854775807) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~x~0#1|)) (<= 0 (+ |ULTIMATE.start_main_~Y~0#1| 13835058055282163713)) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~v~0#1|)))' at error location [2024-11-14 05:29:30,183 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:29:30,184 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:29:30,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-14 05:29:30,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500332189] [2024-11-14 05:29:30,184 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 05:29:30,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-14 05:29:30,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:29:30,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-14 05:29:30,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=297, Invalid=3606, Unknown=3, NotChecked=0, Total=3906 [2024-11-14 05:29:30,185 INFO L87 Difference]: Start difference. First operand 902 states and 1140 transitions. Second operand has 13 states, 10 states have (on average 7.8) internal successors, (78), 13 states have internal predecessors, (78), 3 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 05:29:33,229 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 05:29:35,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:29:39,066 WARN L539 Checker$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 05:29:49,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:29:52,068 WARN L539 Checker$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 05:29:54,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:29:57,219 WARN L539 Checker$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 05:30:01,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:30:03,717 WARN L539 Checker$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 05:30:05,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:30:09,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:30:12,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:30:14,537 WARN L539 Checker$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 05:30:16,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:30:18,437 WARN L539 Checker$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 05:30:20,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:30:22,538 WARN L539 Checker$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 05:30:24,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:30:27,010 WARN L539 Checker$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 05:30:29,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:30:31,405 WARN L539 Checker$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 05:30:33,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:30:35,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:30:37,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:30:40,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:30:42,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:30:45,670 WARN L539 Checker$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 05:30:47,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:30:50,198 WARN L539 Checker$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 05:30:52,762 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:30:54,783 WARN L539 Checker$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 05:30:56,984 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:30:58,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:30:58,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:30:58,996 INFO L93 Difference]: Finished difference Result 1310 states and 1678 transitions. [2024-11-14 05:30:58,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-14 05:30:58,997 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 7.8) internal successors, (78), 13 states have internal predecessors, (78), 3 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 88 [2024-11-14 05:30:58,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:30:59,001 INFO L225 Difference]: With dead ends: 1310 [2024-11-14 05:30:59,001 INFO L226 Difference]: Without dead ends: 1309 [2024-11-14 05:30:59,002 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 167 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1795 ImplicationChecksByTransitivity, 58.3s TimeCoverageRelationStatistics Valid=403, Invalid=4705, Unknown=4, NotChecked=0, Total=5112 [2024-11-14 05:30:59,003 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 264 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 933 mSolverCounterSat, 10 mSolverCounterUnsat, 28 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 79.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 933 IncrementalHoareTripleChecker+Invalid, 28 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 79.5s IncrementalHoareTripleChecker+Time [2024-11-14 05:30:59,003 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 223 Invalid, 971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 933 Invalid, 28 Unknown, 0 Unchecked, 79.5s Time] [2024-11-14 05:30:59,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1309 states. [2024-11-14 05:30:59,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1309 to 941. [2024-11-14 05:30:59,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 941 states, 886 states have (on average 1.2878103837471784) internal successors, (1141), 916 states have internal predecessors, (1141), 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 05:30:59,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 941 states to 941 states and 1185 transitions. [2024-11-14 05:30:59,072 INFO L78 Accepts]: Start accepts. Automaton has 941 states and 1185 transitions. Word has length 88 [2024-11-14 05:30:59,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:30:59,072 INFO L471 AbstractCegarLoop]: Abstraction has 941 states and 1185 transitions. [2024-11-14 05:30:59,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 7.8) internal successors, (78), 13 states have internal predecessors, (78), 3 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 05:30:59,072 INFO L276 IsEmpty]: Start isEmpty. Operand 941 states and 1185 transitions. [2024-11-14 05:30:59,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-14 05:30:59,073 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:30:59,073 INFO L215 NwaCegarLoop]: trace histogram [3, 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, 1, 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 05:30:59,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2024-11-14 05:30:59,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:30:59,274 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:30:59,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:30:59,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1683605700, now seen corresponding path program 1 times [2024-11-14 05:30:59,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:30:59,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236716030] [2024-11-14 05:30:59,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:30:59,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:30:59,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:30:59,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1587581396] [2024-11-14 05:30:59,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:30:59,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:30:59,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:30:59,290 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:30:59,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-11-14 05:30:59,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:30:59,354 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-14 05:30:59,359 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:30:59,942 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 05:30:59,942 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:31:00,189 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:31:00,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236716030] [2024-11-14 05:31:00,189 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:31:00,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587581396] [2024-11-14 05:31:00,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1587581396] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:31:00,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1026836882] [2024-11-14 05:31:00,190 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2024-11-14 05:31:00,191 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:31:00,191 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:31:00,191 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:31:00,191 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:31:03,715 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 113 for LOIs [2024-11-14 05:31:03,754 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 05:31:03,762 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:31:13,195 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '71064#(and (<= 0 (+ (* |ULTIMATE.start_main_~X~0#1| |ULTIMATE.start_main_~y~0#1|) 4611686018427387904)) (exists ((|v_ULTIMATE.start_main_~yx~0#1_187| Int)) (and (<= |v_ULTIMATE.start_main_~yx~0#1_187| 4611686018427387903) (<= |ULTIMATE.start_main_~x~0#1| 9223372036854775807) (<= (+ (* |ULTIMATE.start_main_~X~0#1| |ULTIMATE.start_main_~y~0#1|) 4611686018427387904) |v_ULTIMATE.start_main_~yx~0#1_187|) (<= |ULTIMATE.start_main_~v~0#1| 9223372036854775807) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~x~0#1|)) (= (* |ULTIMATE.start_main_~Y~0#1| |ULTIMATE.start_main_~x~0#1|) |v_ULTIMATE.start_main_~yx~0#1_187|) (<= 0 (+ |ULTIMATE.start_main_~Y~0#1| 13835058055282163713)) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~v~0#1|)))))' at error location [2024-11-14 05:31:13,195 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:31:13,195 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:31:13,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-14 05:31:13,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408171976] [2024-11-14 05:31:13,195 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 05:31:13,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-14 05:31:13,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:31:13,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-14 05:31:13,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=267, Invalid=3155, Unknown=0, NotChecked=0, Total=3422 [2024-11-14 05:31:13,197 INFO L87 Difference]: Start difference. First operand 941 states and 1185 transitions. Second operand has 10 states, 9 states have (on average 8.777777777777779) internal successors, (79), 10 states have internal predecessors, (79), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 05:31:14,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:31:14,640 INFO L93 Difference]: Finished difference Result 1152 states and 1459 transitions. [2024-11-14 05:31:14,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-14 05:31:14,641 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.777777777777779) internal successors, (79), 10 states have internal predecessors, (79), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 89 [2024-11-14 05:31:14,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:31:14,644 INFO L225 Difference]: With dead ends: 1152 [2024-11-14 05:31:14,647 INFO L226 Difference]: Without dead ends: 1146 [2024-11-14 05:31:14,648 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 143 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1362 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=318, Invalid=3714, Unknown=0, NotChecked=0, Total=4032 [2024-11-14 05:31:14,650 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 196 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 871 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:31:14,651 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 510 Invalid, 881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 871 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-14 05:31:14,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1146 states. [2024-11-14 05:31:14,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1146 to 1105. [2024-11-14 05:31:14,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1105 states, 1046 states have (on average 1.2839388145315487) internal successors, (1343), 1076 states have internal predecessors, (1343), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-14 05:31:14,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1105 states to 1105 states and 1395 transitions. [2024-11-14 05:31:14,753 INFO L78 Accepts]: Start accepts. Automaton has 1105 states and 1395 transitions. Word has length 89 [2024-11-14 05:31:14,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:31:14,754 INFO L471 AbstractCegarLoop]: Abstraction has 1105 states and 1395 transitions. [2024-11-14 05:31:14,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.777777777777779) internal successors, (79), 10 states have internal predecessors, (79), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 05:31:14,754 INFO L276 IsEmpty]: Start isEmpty. Operand 1105 states and 1395 transitions. [2024-11-14 05:31:14,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-14 05:31:14,755 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:31:14,755 INFO L215 NwaCegarLoop]: trace histogram [3, 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, 1, 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 05:31:14,775 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2024-11-14 05:31:14,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:31:14,956 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:31:14,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:31:14,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1666528360, now seen corresponding path program 2 times [2024-11-14 05:31:14,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:31:14,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866219088] [2024-11-14 05:31:14,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:31:14,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:31:14,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:31:14,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2077827384] [2024-11-14 05:31:14,973 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 05:31:14,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:31:14,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:31:14,975 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:31:14,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-11-14 05:31:15,032 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-14 05:31:15,032 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:31:15,033 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-14 05:31:15,035 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:31:19,092 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 31 proven. 15 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-14 05:31:19,092 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:31:21,429 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:31:21,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866219088] [2024-11-14 05:31:21,429 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:31:21,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2077827384] [2024-11-14 05:31:21,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2077827384] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:31:21,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [691190093] [2024-11-14 05:31:21,430 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2024-11-14 05:31:21,430 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:31:21,430 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:31:21,430 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:31:21,430 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:31:25,172 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 113 for LOIs [2024-11-14 05:31:25,204 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 05:31:25,212 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:31:45,721 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '73942#(and (exists ((|v_ULTIMATE.start_main_~yx~0#1_194| Int)) (and (<= |v_ULTIMATE.start_main_~yx~0#1_194| 4611686018427387903) (<= |ULTIMATE.start_main_~x~0#1| 9223372036854775807) (<= |ULTIMATE.start_main_~v~0#1| 9223372036854775807) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~x~0#1|)) (<= (+ (* |ULTIMATE.start_main_~X~0#1| |ULTIMATE.start_main_~y~0#1|) 4611686018427387904) |v_ULTIMATE.start_main_~yx~0#1_194|) (<= 0 (+ |ULTIMATE.start_main_~Y~0#1| 13835058055282163713)) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~v~0#1|)) (= (* |ULTIMATE.start_main_~Y~0#1| |ULTIMATE.start_main_~x~0#1|) |v_ULTIMATE.start_main_~yx~0#1_194|))) (<= 0 (+ (* |ULTIMATE.start_main_~X~0#1| |ULTIMATE.start_main_~y~0#1|) 4611686018427387904)))' at error location [2024-11-14 05:31:45,721 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:31:45,721 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:31:45,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-14 05:31:45,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85661965] [2024-11-14 05:31:45,721 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 05:31:45,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-14 05:31:45,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:31:45,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-14 05:31:45,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=303, Invalid=3856, Unknown=1, NotChecked=0, Total=4160 [2024-11-14 05:31:45,722 INFO L87 Difference]: Start difference. First operand 1105 states and 1395 transitions. Second operand has 13 states, 10 states have (on average 7.9) internal successors, (79), 13 states have internal predecessors, (79), 3 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 05:31:50,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:31:52,694 WARN L539 Checker$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 05:31:54,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:31:56,764 WARN L539 Checker$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 05:32:04,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:32:06,653 WARN L539 Checker$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 05:32:08,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:32:11,164 WARN L539 Checker$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 05:32:13,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:32:15,600 WARN L539 Checker$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 05:32:16,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:32:17,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:32:20,682 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 05:32:21,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:32:21,568 INFO L93 Difference]: Finished difference Result 1653 states and 2101 transitions. [2024-11-14 05:32:21,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-14 05:32:21,568 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 7.9) internal successors, (79), 13 states have internal predecessors, (79), 3 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 89 [2024-11-14 05:32:21,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:32:21,572 INFO L225 Difference]: With dead ends: 1653 [2024-11-14 05:32:21,573 INFO L226 Difference]: Without dead ends: 1651 [2024-11-14 05:32:21,574 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 168 SyntacticMatches, 2 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2260 ImplicationChecksByTransitivity, 32.3s TimeCoverageRelationStatistics Valid=519, Invalid=5800, Unknown=1, NotChecked=0, Total=6320 [2024-11-14 05:32:21,574 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 226 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 1343 mSolverCounterSat, 8 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 1363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1343 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:32:21,574 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 260 Invalid, 1363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1343 Invalid, 12 Unknown, 0 Unchecked, 28.2s Time] [2024-11-14 05:32:21,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1651 states. [2024-11-14 05:32:21,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1651 to 1178. [2024-11-14 05:32:21,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1178 states, 1119 states have (on average 1.2734584450402144) internal successors, (1425), 1149 states have internal predecessors, (1425), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-14 05:32:21,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1178 states to 1178 states and 1477 transitions. [2024-11-14 05:32:21,679 INFO L78 Accepts]: Start accepts. Automaton has 1178 states and 1477 transitions. Word has length 89 [2024-11-14 05:32:21,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:32:21,679 INFO L471 AbstractCegarLoop]: Abstraction has 1178 states and 1477 transitions. [2024-11-14 05:32:21,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 7.9) internal successors, (79), 13 states have internal predecessors, (79), 3 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 05:32:21,679 INFO L276 IsEmpty]: Start isEmpty. Operand 1178 states and 1477 transitions. [2024-11-14 05:32:21,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-14 05:32:21,679 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:32:21,680 INFO L215 NwaCegarLoop]: trace histogram [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, 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 05:32:21,697 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2024-11-14 05:32:21,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:32:21,880 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:32:21,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:32:21,880 INFO L85 PathProgramCache]: Analyzing trace with hash 652169221, now seen corresponding path program 1 times [2024-11-14 05:32:21,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:32:21,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140451417] [2024-11-14 05:32:21,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:32:21,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:32:21,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:32:21,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [246733157] [2024-11-14 05:32:21,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:32:21,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:32:21,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:32:21,900 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:32:21,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-11-14 05:32:21,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:32:21,967 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-14 05:32:21,969 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:32:22,514 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 05:32:22,514 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:32:23,353 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 05:32:23,353 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:32:23,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140451417] [2024-11-14 05:32:23,353 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:32:23,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [246733157] [2024-11-14 05:32:23,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [246733157] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:32:23,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [835505464] [2024-11-14 05:32:23,355 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2024-11-14 05:32:23,355 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:32:23,355 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:32:23,355 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:32:23,356 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:32:26,873 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 113 for LOIs [2024-11-14 05:32:26,903 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 05:32:26,911 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:32:36,657 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '77555#(and (<= |ULTIMATE.start_main_~x~0#1| 9223372036854775807) (<= |ULTIMATE.start_main_~v~0#1| 9223372036854775807) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~x~0#1|)) (<= 0 (+ |ULTIMATE.start_main_~Y~0#1| 13835058055282163713)) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~v~0#1|)))' at error location [2024-11-14 05:32:36,657 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:32:36,657 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 05:32:36,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2024-11-14 05:32:36,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430946947] [2024-11-14 05:32:36,657 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 05:32:36,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-14 05:32:36,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:32:36,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-14 05:32:36,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=307, Invalid=3599, Unknown=0, NotChecked=0, Total=3906 [2024-11-14 05:32:36,658 INFO L87 Difference]: Start difference. First operand 1178 states and 1477 transitions. Second operand has 20 states, 19 states have (on average 8.052631578947368) internal successors, (153), 20 states have internal predecessors, (153), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-14 05:32:43,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:32:43,696 INFO L93 Difference]: Finished difference Result 2159 states and 2760 transitions. [2024-11-14 05:32:43,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-11-14 05:32:43,697 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 8.052631578947368) internal successors, (153), 20 states have internal predecessors, (153), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 90 [2024-11-14 05:32:43,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:32:43,702 INFO L225 Difference]: With dead ends: 2159 [2024-11-14 05:32:43,702 INFO L226 Difference]: Without dead ends: 2157 [2024-11-14 05:32:43,703 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 205 SyntacticMatches, 2 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3392 ImplicationChecksByTransitivity, 12.8s TimeCoverageRelationStatistics Valid=741, Invalid=9765, Unknown=0, NotChecked=0, Total=10506 [2024-11-14 05:32:43,703 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 520 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 2837 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 2874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 2837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:32:43,704 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [521 Valid, 817 Invalid, 2874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 2837 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-14 05:32:43,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2157 states. [2024-11-14 05:32:43,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2157 to 1920. [2024-11-14 05:32:43,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1920 states, 1839 states have (on average 1.288200108754758) internal successors, (2369), 1869 states have internal predecessors, (2369), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-14 05:32:43,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1920 states to 1920 states and 2465 transitions. [2024-11-14 05:32:43,883 INFO L78 Accepts]: Start accepts. Automaton has 1920 states and 2465 transitions. Word has length 90 [2024-11-14 05:32:43,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:32:43,884 INFO L471 AbstractCegarLoop]: Abstraction has 1920 states and 2465 transitions. [2024-11-14 05:32:43,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 8.052631578947368) internal successors, (153), 20 states have internal predecessors, (153), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-14 05:32:43,884 INFO L276 IsEmpty]: Start isEmpty. Operand 1920 states and 2465 transitions. [2024-11-14 05:32:43,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-14 05:32:43,885 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:32:43,885 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:32:43,906 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2024-11-14 05:32:44,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:32:44,088 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:32:44,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:32:44,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1363989312, now seen corresponding path program 1 times [2024-11-14 05:32:44,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:32:44,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424217446] [2024-11-14 05:32:44,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:32:44,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:32:44,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:32:44,195 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 05:32:44,196 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:32:44,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424217446] [2024-11-14 05:32:44,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424217446] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:32:44,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [916063340] [2024-11-14 05:32:44,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:32:44,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:32:44,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:32:44,199 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:32:44,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2024-11-14 05:32:44,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:32:44,263 INFO L255 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:32:44,265 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:32:44,457 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 05:32:44,457 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:32:44,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [916063340] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:32:44,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:32:44,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-14 05:32:44,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784246487] [2024-11-14 05:32:44,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:32:44,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 05:32:44,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:32:44,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 05:32:44,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-14 05:32:44,459 INFO L87 Difference]: Start difference. First operand 1920 states and 2465 transitions. Second operand has 6 states, 5 states have (on average 16.2) internal successors, (81), 6 states have internal predecessors, (81), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 05:32:44,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:32:44,948 INFO L93 Difference]: Finished difference Result 1920 states and 2465 transitions. [2024-11-14 05:32:44,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 05:32:44,949 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 6 states have internal predecessors, (81), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 91 [2024-11-14 05:32:44,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:32:44,952 INFO L225 Difference]: With dead ends: 1920 [2024-11-14 05:32:44,952 INFO L226 Difference]: Without dead ends: 1917 [2024-11-14 05:32:44,953 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-14 05:32:44,953 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 57 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:32:44,954 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 246 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:32:44,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1917 states. [2024-11-14 05:32:45,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1917 to 1883. [2024-11-14 05:32:45,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1883 states, 1805 states have (on average 1.2753462603878116) internal successors, (2302), 1832 states have internal predecessors, (2302), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-14 05:32:45,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1883 states to 1883 states and 2398 transitions. [2024-11-14 05:32:45,135 INFO L78 Accepts]: Start accepts. Automaton has 1883 states and 2398 transitions. Word has length 91 [2024-11-14 05:32:45,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:32:45,135 INFO L471 AbstractCegarLoop]: Abstraction has 1883 states and 2398 transitions. [2024-11-14 05:32:45,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 6 states have internal predecessors, (81), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 05:32:45,135 INFO L276 IsEmpty]: Start isEmpty. Operand 1883 states and 2398 transitions. [2024-11-14 05:32:45,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-14 05:32:45,136 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:32:45,136 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:32:45,158 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2024-11-14 05:32:45,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2024-11-14 05:32:45,337 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:32:45,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:32:45,337 INFO L85 PathProgramCache]: Analyzing trace with hash -666004113, now seen corresponding path program 1 times [2024-11-14 05:32:45,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:32:45,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793989218] [2024-11-14 05:32:45,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:32:45,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:32:45,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:32:45,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [818900656] [2024-11-14 05:32:45,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:32:45,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:32:45,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:32:45,356 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:32:45,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-11-14 05:32:45,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:32:45,426 INFO L255 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-14 05:32:45,428 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:32:46,177 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-14 05:32:46,178 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:32:46,844 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-14 05:32:46,844 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:32:46,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793989218] [2024-11-14 05:32:46,844 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:32:46,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [818900656] [2024-11-14 05:32:46,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [818900656] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:32:46,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1748894295] [2024-11-14 05:32:46,845 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2024-11-14 05:32:46,846 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:32:46,846 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:32:46,846 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:32:46,846 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:32:49,252 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 51 for LOIs [2024-11-14 05:32:49,259 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 05:32:49,271 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:33:10,554 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '86837#(exists ((|v_ULTIMATE.start_main_~X~0#1_93| Int) (|v_ULTIMATE.start_main_~x~0#1_221| Int) (|v_ULTIMATE.start_main_~yx~0#1_209| Int) (|v_ULTIMATE.start_main_~v~0#1_266| Int) (|v_ULTIMATE.start_main_~Y~0#1_105| Int) (|v_ULTIMATE.start_main_~y~0#1_177| Int)) (and (<= |v_ULTIMATE.start_main_~Y~0#1_105| 20) (<= 1 |#StackHeapBarrier|) (<= (+ |v_ULTIMATE.start_main_~X~0#1_93| 1) |v_ULTIMATE.start_main_~x~0#1_221|) (<= (+ (* 2 |v_ULTIMATE.start_main_~Y~0#1_105|) (* 2 (* |v_ULTIMATE.start_main_~x~0#1_221| |v_ULTIMATE.start_main_~Y~0#1_105|))) (+ |v_ULTIMATE.start_main_~X~0#1_93| |v_ULTIMATE.start_main_~v~0#1_266| 9223372036854775807 (* (* |v_ULTIMATE.start_main_~y~0#1_177| |v_ULTIMATE.start_main_~x~0#1_221|) 2))) (<= |v_ULTIMATE.start_main_~X~0#1_93| 20) (<= 0 |v_ULTIMATE.start_main_~X~0#1_93|) (<= (+ |v_ULTIMATE.start_main_~X~0#1_93| (* (* |v_ULTIMATE.start_main_~y~0#1_177| |v_ULTIMATE.start_main_~x~0#1_221|) 2)) (+ 9223372036854775808 (* 2 (* |v_ULTIMATE.start_main_~x~0#1_221| |v_ULTIMATE.start_main_~Y~0#1_105|)))) (<= (* |v_ULTIMATE.start_main_~y~0#1_177| |v_ULTIMATE.start_main_~x~0#1_221|) 4611686018427387903) (<= 0 |v_ULTIMATE.start_main_~yx~0#1_209|) (<= (+ |v_ULTIMATE.start_main_~X~0#1_93| |v_ULTIMATE.start_main_~v~0#1_266| 9223372036854775808 (* (* |v_ULTIMATE.start_main_~y~0#1_177| |v_ULTIMATE.start_main_~x~0#1_221|) 2)) (+ (* 2 |v_ULTIMATE.start_main_~Y~0#1_105|) (* 2 (* |v_ULTIMATE.start_main_~x~0#1_221| |v_ULTIMATE.start_main_~Y~0#1_105|)) (* |v_ULTIMATE.start_main_~y~0#1_177| 2))) (<= 0 |v_ULTIMATE.start_main_~Y~0#1_105|) (<= (* |v_ULTIMATE.start_main_~x~0#1_221| |v_ULTIMATE.start_main_~Y~0#1_105|) 4611686018427387903)))' at error location [2024-11-14 05:33:10,555 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:33:10,555 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 05:33:10,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2024-11-14 05:33:10,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553852485] [2024-11-14 05:33:10,555 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 05:33:10,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-14 05:33:10,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:33:10,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-14 05:33:10,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=261, Invalid=2601, Unknown=0, NotChecked=0, Total=2862 [2024-11-14 05:33:10,556 INFO L87 Difference]: Start difference. First operand 1883 states and 2398 transitions. Second operand has 23 states, 21 states have (on average 7.523809523809524) internal successors, (158), 23 states have internal predecessors, (158), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-14 05:33:14,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:33:14,018 INFO L93 Difference]: Finished difference Result 1910 states and 2427 transitions. [2024-11-14 05:33:14,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-14 05:33:14,019 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 7.523809523809524) internal successors, (158), 23 states have internal predecessors, (158), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 92 [2024-11-14 05:33:14,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:33:14,022 INFO L225 Difference]: With dead ends: 1910 [2024-11-14 05:33:14,022 INFO L226 Difference]: Without dead ends: 1883 [2024-11-14 05:33:14,023 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 179 SyntacticMatches, 43 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2515 ImplicationChecksByTransitivity, 22.3s TimeCoverageRelationStatistics Valid=423, Invalid=3999, Unknown=0, NotChecked=0, Total=4422 [2024-11-14 05:33:14,023 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 355 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 1543 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 1568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-14 05:33:14,023 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 361 Invalid, 1568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1543 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-14 05:33:14,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1883 states. [2024-11-14 05:33:14,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1883 to 1877. [2024-11-14 05:33:14,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1877 states, 1799 states have (on average 1.2784880489160644) internal successors, (2300), 1826 states have internal predecessors, (2300), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-14 05:33:14,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1877 states to 1877 states and 2396 transitions. [2024-11-14 05:33:14,201 INFO L78 Accepts]: Start accepts. Automaton has 1877 states and 2396 transitions. Word has length 92 [2024-11-14 05:33:14,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:33:14,201 INFO L471 AbstractCegarLoop]: Abstraction has 1877 states and 2396 transitions. [2024-11-14 05:33:14,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 7.523809523809524) internal successors, (158), 23 states have internal predecessors, (158), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-14 05:33:14,201 INFO L276 IsEmpty]: Start isEmpty. Operand 1877 states and 2396 transitions. [2024-11-14 05:33:14,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-14 05:33:14,202 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:33:14,202 INFO L215 NwaCegarLoop]: trace histogram [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, 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 05:33:14,223 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2024-11-14 05:33:14,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2024-11-14 05:33:14,407 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:33:14,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:33:14,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1845681714, now seen corresponding path program 1 times [2024-11-14 05:33:14,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:33:14,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004882013] [2024-11-14 05:33:14,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:33:14,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:33:14,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:33:14,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [515133308] [2024-11-14 05:33:14,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:33:14,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:33:14,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:33:14,426 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:33:14,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2024-11-14 05:33:14,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:33:14,492 INFO L255 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-14 05:33:14,494 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:33:16,642 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 1 proven. 59 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-14 05:33:16,642 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:33:20,558 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:33:20,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004882013] [2024-11-14 05:33:20,558 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:33:20,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515133308] [2024-11-14 05:33:20,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [515133308] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:33:20,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1680457179] [2024-11-14 05:33:20,559 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2024-11-14 05:33:20,560 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:33:20,560 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:33:20,560 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:33:20,560 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:33:24,030 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 113 for LOIs [2024-11-14 05:33:24,060 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 05:33:24,068 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:33:38,549 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '91384#(exists ((|v_ULTIMATE.start_main_~yx~0#1_217| Int) (|v_ULTIMATE.start_main_~Y~0#1_108| Int) (|v_ULTIMATE.start_main_~xy~0#1_215| Int) (|v_ULTIMATE.start_main_~X~0#1_96| Int)) (and (<= 0 (+ |v_ULTIMATE.start_main_~xy~0#1_215| 4611686018427387904)) (<= (+ (* 2 |v_ULTIMATE.start_main_~xy~0#1_215|) |v_ULTIMATE.start_main_~X~0#1_96| 9223372036854775808) (+ (* 2 |v_ULTIMATE.start_main_~Y~0#1_108|) (* 2 |v_ULTIMATE.start_main_~yx~0#1_217|))) (<= |ULTIMATE.start_main_~x~0#1| 9223372036854775807) (<= (* 2 |v_ULTIMATE.start_main_~yx~0#1_217|) (+ (* 2 |v_ULTIMATE.start_main_~xy~0#1_215|) |v_ULTIMATE.start_main_~X~0#1_96| 9223372036854775807)) (<= |ULTIMATE.start_main_~v~0#1| 9223372036854775807) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~x~0#1|)) (<= 0 (+ |v_ULTIMATE.start_main_~yx~0#1_217| 4611686018427387904)) (<= |v_ULTIMATE.start_main_~xy~0#1_215| 4611686018427387903) (<= 0 (+ |v_ULTIMATE.start_main_~X~0#1_96| 9223372036854775809)) (<= |v_ULTIMATE.start_main_~Y~0#1_108| 4611686018427387903) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~v~0#1|)) (<= |v_ULTIMATE.start_main_~yx~0#1_217| 4611686018427387903)))' at error location [2024-11-14 05:33:38,549 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:33:38,550 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:33:38,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-14 05:33:38,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008596682] [2024-11-14 05:33:38,550 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 05:33:38,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-14 05:33:38,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:33:38,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-14 05:33:38,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=357, Invalid=4199, Unknown=0, NotChecked=0, Total=4556 [2024-11-14 05:33:38,551 INFO L87 Difference]: Start difference. First operand 1877 states and 2396 transitions. Second operand has 14 states, 12 states have (on average 7.166666666666667) internal successors, (86), 14 states have internal predecessors, (86), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 05:33:42,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:33:42,600 INFO L93 Difference]: Finished difference Result 1891 states and 2402 transitions. [2024-11-14 05:33:42,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-14 05:33:42,600 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 7.166666666666667) internal successors, (86), 14 states have internal predecessors, (86), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 95 [2024-11-14 05:33:42,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:33:42,604 INFO L225 Difference]: With dead ends: 1891 [2024-11-14 05:33:42,604 INFO L226 Difference]: Without dead ends: 1888 [2024-11-14 05:33:42,605 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 183 SyntacticMatches, 2 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1733 ImplicationChecksByTransitivity, 19.1s TimeCoverageRelationStatistics Valid=455, Invalid=5245, Unknown=0, NotChecked=0, Total=5700 [2024-11-14 05:33:42,605 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 254 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 1294 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 1308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-14 05:33:42,606 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 457 Invalid, 1308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1294 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-14 05:33:42,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1888 states. [2024-11-14 05:33:42,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1888 to 1877. [2024-11-14 05:33:42,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1877 states, 1799 states have (on average 1.2740411339633129) internal successors, (2292), 1826 states have internal predecessors, (2292), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-14 05:33:42,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1877 states to 1877 states and 2388 transitions. [2024-11-14 05:33:42,794 INFO L78 Accepts]: Start accepts. Automaton has 1877 states and 2388 transitions. Word has length 95 [2024-11-14 05:33:42,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:33:42,794 INFO L471 AbstractCegarLoop]: Abstraction has 1877 states and 2388 transitions. [2024-11-14 05:33:42,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 7.166666666666667) internal successors, (86), 14 states have internal predecessors, (86), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 05:33:42,795 INFO L276 IsEmpty]: Start isEmpty. Operand 1877 states and 2388 transitions. [2024-11-14 05:33:42,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-14 05:33:42,795 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:33:42,795 INFO L215 NwaCegarLoop]: trace histogram [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, 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 05:33:42,811 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2024-11-14 05:33:42,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2024-11-14 05:33:42,996 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:33:42,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:33:42,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1023400853, now seen corresponding path program 1 times [2024-11-14 05:33:42,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:33:42,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596523295] [2024-11-14 05:33:42,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:33:42,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:33:43,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:33:43,214 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 05:33:43,214 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:33:43,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596523295] [2024-11-14 05:33:43,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596523295] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:33:43,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [277002395] [2024-11-14 05:33:43,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:33:43,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:33:43,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:33:43,217 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:33:43,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2024-11-14 05:33:43,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:33:43,281 INFO L255 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 05:33:43,283 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:33:43,704 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 05:33:43,704 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:33:44,008 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 05:33:44,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [277002395] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:33:44,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [231625288] [2024-11-14 05:33:44,010 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2024-11-14 05:33:44,010 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:33:44,010 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:33:44,010 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:33:44,010 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:33:47,641 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 113 for LOIs [2024-11-14 05:33:47,671 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 05:33:47,679 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:33:57,543 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '96011#(exists ((|v_ULTIMATE.start_main_~v~0#1_293| Int) (|v_ULTIMATE.start_main_~Y~0#1_109| Int) (|v_ULTIMATE.start_main_~X~0#1_97| Int) (|v_ULTIMATE.start_main_~xy~0#1_221| Int) (|v_ULTIMATE.start_main_~yx~0#1_223| Int)) (and (<= |v_ULTIMATE.start_main_~xy~0#1_221| 4611686018427387903) (<= 0 (+ |v_ULTIMATE.start_main_~X~0#1_97| 9223372036854775809)) (<= |ULTIMATE.start_main_~x~0#1| 9223372036854775807) (<= (+ |v_ULTIMATE.start_main_~X~0#1_97| (* 2 |v_ULTIMATE.start_main_~xy~0#1_221|)) (+ (* 2 |v_ULTIMATE.start_main_~yx~0#1_223|) 9223372036854775808)) (<= 0 (+ |v_ULTIMATE.start_main_~Y~0#1_109| 4611686018427387904)) (<= |v_ULTIMATE.start_main_~yx~0#1_223| 4611686018427387903) (<= (+ |v_ULTIMATE.start_main_~X~0#1_97| (* 2 |v_ULTIMATE.start_main_~xy~0#1_221|)) (+ (* 2 |v_ULTIMATE.start_main_~yx~0#1_223|) 9223372036854775808 (* 2 |v_ULTIMATE.start_main_~Y~0#1_109|))) (<= 0 (+ |v_ULTIMATE.start_main_~xy~0#1_221| 4611686018427387904)) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~x~0#1|)) (<= (+ 9223372036854775809 (* 2 |v_ULTIMATE.start_main_~yx~0#1_223|) (* 2 |v_ULTIMATE.start_main_~Y~0#1_109|)) (+ |v_ULTIMATE.start_main_~X~0#1_97| |v_ULTIMATE.start_main_~v~0#1_293| (* 2 |v_ULTIMATE.start_main_~xy~0#1_221|))) (<= |v_ULTIMATE.start_main_~v~0#1_293| 9223372036854775807) (<= 0 (+ |v_ULTIMATE.start_main_~yx~0#1_223| 4611686018427387904))))' at error location [2024-11-14 05:33:57,543 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:33:57,543 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:33:57,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 19 [2024-11-14 05:33:57,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106866560] [2024-11-14 05:33:57,543 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:33:57,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-14 05:33:57,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:33:57,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-14 05:33:57,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=304, Invalid=3602, Unknown=0, NotChecked=0, Total=3906 [2024-11-14 05:33:57,544 INFO L87 Difference]: Start difference. First operand 1877 states and 2388 transitions. Second operand has 20 states, 19 states have (on average 12.842105263157896) internal successors, (244), 20 states have internal predecessors, (244), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-14 05:34:01,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:34:01,556 INFO L93 Difference]: Finished difference Result 3267 states and 4113 transitions. [2024-11-14 05:34:01,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2024-11-14 05:34:01,557 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 12.842105263157896) internal successors, (244), 20 states have internal predecessors, (244), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 96 [2024-11-14 05:34:01,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:34:01,561 INFO L225 Difference]: With dead ends: 3267 [2024-11-14 05:34:01,561 INFO L226 Difference]: Without dead ends: 2907 [2024-11-14 05:34:01,563 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 232 SyntacticMatches, 2 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3107 ImplicationChecksByTransitivity, 11.6s TimeCoverageRelationStatistics Valid=788, Invalid=8914, Unknown=0, NotChecked=0, Total=9702 [2024-11-14 05:34:01,564 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 873 mSDsluCounter, 1086 mSDsCounter, 0 mSdLazyCounter, 2517 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 874 SdHoareTripleChecker+Valid, 1191 SdHoareTripleChecker+Invalid, 2570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:34:01,564 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [874 Valid, 1191 Invalid, 2570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2517 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-14 05:34:01,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2907 states. [2024-11-14 05:34:01,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2907 to 2476. [2024-11-14 05:34:01,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2476 states, 2380 states have (on average 1.2596638655462185) internal successors, (2998), 2407 states have internal predecessors, (2998), 66 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-14 05:34:01,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2476 states to 2476 states and 3130 transitions. [2024-11-14 05:34:01,834 INFO L78 Accepts]: Start accepts. Automaton has 2476 states and 3130 transitions. Word has length 96 [2024-11-14 05:34:01,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:34:01,834 INFO L471 AbstractCegarLoop]: Abstraction has 2476 states and 3130 transitions. [2024-11-14 05:34:01,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 12.842105263157896) internal successors, (244), 20 states have internal predecessors, (244), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-14 05:34:01,835 INFO L276 IsEmpty]: Start isEmpty. Operand 2476 states and 3130 transitions. [2024-11-14 05:34:01,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-14 05:34:01,835 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:34:01,835 INFO L215 NwaCegarLoop]: trace histogram [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, 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 05:34:01,847 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2024-11-14 05:34:02,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:34:02,036 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:34:02,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:34:02,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1660655284, now seen corresponding path program 1 times [2024-11-14 05:34:02,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:34:02,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446950121] [2024-11-14 05:34:02,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:34:02,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:34:02,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:34:02,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1093827911] [2024-11-14 05:34:02,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:34:02,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:34:02,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:34:02,051 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:34:02,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2024-11-14 05:34:02,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:34:02,106 INFO L255 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-14 05:34:02,108 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:34:03,841 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-14 05:34:03,841 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:34:11,911 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:34:11,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446950121] [2024-11-14 05:34:11,911 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:34:11,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1093827911] [2024-11-14 05:34:11,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1093827911] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:34:11,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [850266453] [2024-11-14 05:34:11,912 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2024-11-14 05:34:11,912 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:34:11,912 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:34:11,912 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:34:11,912 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:34:15,521 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 113 for LOIs [2024-11-14 05:34:15,550 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 05:34:15,558 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:34:25,585 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '102586#(exists ((|v_ULTIMATE.start_main_~yx~0#1_227| Int) (|v_ULTIMATE.start_main_~xy~0#1_225| Int) (|v_ULTIMATE.start_main_~X~0#1_98| Int) (|v_ULTIMATE.start_main_~Y~0#1_110| Int) (|v_ULTIMATE.start_main_~v~0#1_305| Int)) (and (<= |v_ULTIMATE.start_main_~xy~0#1_225| 4611686018427387903) (<= (+ (* 2 |v_ULTIMATE.start_main_~xy~0#1_225|) |v_ULTIMATE.start_main_~X~0#1_98| |v_ULTIMATE.start_main_~v~0#1_305| 9223372036854775808) (+ (* 2 |v_ULTIMATE.start_main_~Y~0#1_110|) (* 2 |v_ULTIMATE.start_main_~yx~0#1_227|))) (<= |ULTIMATE.start_main_~x~0#1| 9223372036854775807) (<= |v_ULTIMATE.start_main_~Y~0#1_110| 4611686018427387903) (<= 0 (+ |v_ULTIMATE.start_main_~v~0#1_305| 9223372036854775808)) (<= (* 2 |v_ULTIMATE.start_main_~yx~0#1_227|) (+ (* 2 |v_ULTIMATE.start_main_~xy~0#1_225|) |v_ULTIMATE.start_main_~X~0#1_98| 9223372036854775807)) (<= 0 (+ |v_ULTIMATE.start_main_~xy~0#1_225| 4611686018427387904)) (<= 0 (+ |v_ULTIMATE.start_main_~X~0#1_98| 9223372036854775809)) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~x~0#1|)) (<= |v_ULTIMATE.start_main_~yx~0#1_227| 4611686018427387903) (<= (+ (* 2 |v_ULTIMATE.start_main_~Y~0#1_110|) (* 2 |v_ULTIMATE.start_main_~yx~0#1_227|)) (+ (* 2 |v_ULTIMATE.start_main_~xy~0#1_225|) |v_ULTIMATE.start_main_~X~0#1_98| 9223372036854775807)) (<= 0 (+ |v_ULTIMATE.start_main_~yx~0#1_227| 4611686018427387904))))' at error location [2024-11-14 05:34:25,586 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:34:25,586 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:34:25,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-14 05:34:25,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726450723] [2024-11-14 05:34:25,586 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 05:34:25,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-14 05:34:25,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:34:25,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-14 05:34:25,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=360, Invalid=4058, Unknown=4, NotChecked=0, Total=4422 [2024-11-14 05:34:25,587 INFO L87 Difference]: Start difference. First operand 2476 states and 3130 transitions. Second operand has 16 states, 14 states have (on average 6.285714285714286) internal successors, (88), 16 states have internal predecessors, (88), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-14 05:34:28,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:34:28,102 INFO L93 Difference]: Finished difference Result 2508 states and 3159 transitions. [2024-11-14 05:34:28,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-14 05:34:28,103 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 6.285714285714286) internal successors, (88), 16 states have internal predecessors, (88), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 97 [2024-11-14 05:34:28,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:34:28,113 INFO L225 Difference]: With dead ends: 2508 [2024-11-14 05:34:28,117 INFO L226 Difference]: Without dead ends: 2476 [2024-11-14 05:34:28,119 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 159 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1942 ImplicationChecksByTransitivity, 18.8s TimeCoverageRelationStatistics Valid=395, Invalid=4431, Unknown=4, NotChecked=0, Total=4830 [2024-11-14 05:34:28,119 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 147 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 1485 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 1493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-14 05:34:28,120 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 439 Invalid, 1493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1485 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-14 05:34:28,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2476 states. [2024-11-14 05:34:28,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2476 to 2476. [2024-11-14 05:34:28,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2476 states, 2380 states have (on average 1.2584033613445378) internal successors, (2995), 2407 states have internal predecessors, (2995), 66 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-14 05:34:28,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2476 states to 2476 states and 3127 transitions. [2024-11-14 05:34:28,553 INFO L78 Accepts]: Start accepts. Automaton has 2476 states and 3127 transitions. Word has length 97 [2024-11-14 05:34:28,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:34:28,553 INFO L471 AbstractCegarLoop]: Abstraction has 2476 states and 3127 transitions. [2024-11-14 05:34:28,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 6.285714285714286) internal successors, (88), 16 states have internal predecessors, (88), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-14 05:34:28,554 INFO L276 IsEmpty]: Start isEmpty. Operand 2476 states and 3127 transitions. [2024-11-14 05:34:28,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-14 05:34:28,554 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:34:28,555 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 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 05:34:28,585 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2024-11-14 05:34:28,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:34:28,755 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:34:28,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:34:28,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1978993113, now seen corresponding path program 1 times [2024-11-14 05:34:28,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:34:28,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67621587] [2024-11-14 05:34:28,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:34:28,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:34:28,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:34:29,224 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 67 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-14 05:34:29,225 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:34:29,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67621587] [2024-11-14 05:34:29,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67621587] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:34:29,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [259118190] [2024-11-14 05:34:29,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:34:29,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:34:29,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:34:29,228 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:34:29,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2024-11-14 05:34:29,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:34:29,301 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-14 05:34:29,303 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:34:30,125 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 67 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-14 05:34:30,125 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:34:30,936 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 67 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-14 05:34:30,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [259118190] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:34:30,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1916636095] [2024-11-14 05:34:30,938 INFO L159 IcfgInterpreter]: Started Sifa with 51 locations of interest [2024-11-14 05:34:30,938 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:34:30,938 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:34:30,938 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:34:30,938 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:34:34,421 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 52 for LOIs [2024-11-14 05:34:34,428 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 05:34:34,436 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:34:42,542 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '107901#true' at error location [2024-11-14 05:34:42,542 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:34:42,542 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:34:42,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 26 [2024-11-14 05:34:42,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561204673] [2024-11-14 05:34:42,542 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:34:42,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-14 05:34:42,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:34:42,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-14 05:34:42,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=295, Invalid=4261, Unknown=0, NotChecked=0, Total=4556 [2024-11-14 05:34:42,544 INFO L87 Difference]: Start difference. First operand 2476 states and 3127 transitions. Second operand has 26 states, 26 states have (on average 9.615384615384615) internal successors, (250), 26 states have internal predecessors, (250), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 9 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-14 05:34:45,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:34:45,447 INFO L93 Difference]: Finished difference Result 2509 states and 3159 transitions. [2024-11-14 05:34:45,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-14 05:34:45,447 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.615384615384615) internal successors, (250), 26 states have internal predecessors, (250), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 9 states have call predecessors, (11), 10 states have call successors, (11) Word has length 102 [2024-11-14 05:34:45,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:34:45,454 INFO L225 Difference]: With dead ends: 2509 [2024-11-14 05:34:45,454 INFO L226 Difference]: Without dead ends: 2458 [2024-11-14 05:34:45,456 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 246 SyntacticMatches, 3 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2309 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=482, Invalid=7000, Unknown=0, NotChecked=0, Total=7482 [2024-11-14 05:34:45,456 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 130 mSDsluCounter, 739 mSDsCounter, 0 mSdLazyCounter, 1632 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 828 SdHoareTripleChecker+Invalid, 1648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-14 05:34:45,456 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 828 Invalid, 1648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1632 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-14 05:34:45,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2458 states. [2024-11-14 05:34:45,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2458 to 2458. [2024-11-14 05:34:45,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2458 states, 2362 states have (on average 1.256562235393734) internal successors, (2968), 2389 states have internal predecessors, (2968), 66 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-14 05:34:45,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2458 states to 2458 states and 3100 transitions. [2024-11-14 05:34:45,899 INFO L78 Accepts]: Start accepts. Automaton has 2458 states and 3100 transitions. Word has length 102 [2024-11-14 05:34:45,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:34:45,899 INFO L471 AbstractCegarLoop]: Abstraction has 2458 states and 3100 transitions. [2024-11-14 05:34:45,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.615384615384615) internal successors, (250), 26 states have internal predecessors, (250), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 9 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-14 05:34:45,899 INFO L276 IsEmpty]: Start isEmpty. Operand 2458 states and 3100 transitions. [2024-11-14 05:34:45,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-14 05:34:45,900 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:34:45,900 INFO L215 NwaCegarLoop]: trace histogram [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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:34:45,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Forceful destruction successful, exit code 0 [2024-11-14 05:34:46,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:34:46,105 INFO L396 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:34:46,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:34:46,105 INFO L85 PathProgramCache]: Analyzing trace with hash 183726452, now seen corresponding path program 1 times [2024-11-14 05:34:46,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:34:46,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529237388] [2024-11-14 05:34:46,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:34:46,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:34:46,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:34:46,193 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2024-11-14 05:34:46,193 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:34:46,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529237388] [2024-11-14 05:34:46,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529237388] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:34:46,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [864976232] [2024-11-14 05:34:46,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:34:46,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:34:46,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:34:46,196 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:34:46,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2024-11-14 05:34:46,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:34:46,262 INFO L255 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:34:46,263 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:34:46,803 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 5 proven. 44 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-14 05:34:46,803 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:34:47,088 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 44 proven. 5 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-14 05:34:47,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [864976232] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:34:47,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [954443983] [2024-11-14 05:34:47,089 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2024-11-14 05:34:47,089 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:34:47,090 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:34:47,090 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:34:47,090 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:34:51,429 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 113 for LOIs [2024-11-14 05:34:51,461 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 05:34:51,468 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:34:58,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [954443983] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:34:58,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:34:58,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [43] imperfect sequences [4, 5, 5] total 53 [2024-11-14 05:34:58,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682824531] [2024-11-14 05:34:58,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:34:58,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-11-14 05:34:58,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:34:58,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-11-14 05:34:58,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=284, Invalid=2578, Unknown=0, NotChecked=0, Total=2862 [2024-11-14 05:34:58,907 INFO L87 Difference]: Start difference. First operand 2458 states and 3100 transitions. Second operand has 44 states, 38 states have (on average 1.2105263157894737) internal successors, (46), 40 states have internal predecessors, (46), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 05:35:11,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:35:11,424 INFO L93 Difference]: Finished difference Result 2461 states and 3103 transitions. [2024-11-14 05:35:11,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-11-14 05:35:11,424 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 38 states have (on average 1.2105263157894737) internal successors, (46), 40 states have internal predecessors, (46), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 107 [2024-11-14 05:35:11,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:35:11,427 INFO L225 Difference]: With dead ends: 2461 [2024-11-14 05:35:11,427 INFO L226 Difference]: Without dead ends: 2459 [2024-11-14 05:35:11,429 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 271 SyntacticMatches, 2 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2437 ImplicationChecksByTransitivity, 16.2s TimeCoverageRelationStatistics Valid=1716, Invalid=6840, Unknown=0, NotChecked=0, Total=8556 [2024-11-14 05:35:11,429 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 499 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 1311 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 1386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-14 05:35:11,429 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [499 Valid, 202 Invalid, 1386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1311 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-14 05:35:11,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2459 states. [2024-11-14 05:35:11,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2459 to 2447. [2024-11-14 05:35:11,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2447 states, 2353 states have (on average 1.2290692732681683) internal successors, (2892), 2378 states have internal predecessors, (2892), 66 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-14 05:35:11,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2447 states to 2447 states and 3024 transitions. [2024-11-14 05:35:11,757 INFO L78 Accepts]: Start accepts. Automaton has 2447 states and 3024 transitions. Word has length 107 [2024-11-14 05:35:11,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:35:11,757 INFO L471 AbstractCegarLoop]: Abstraction has 2447 states and 3024 transitions. [2024-11-14 05:35:11,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 38 states have (on average 1.2105263157894737) internal successors, (46), 40 states have internal predecessors, (46), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 05:35:11,757 INFO L276 IsEmpty]: Start isEmpty. Operand 2447 states and 3024 transitions. [2024-11-14 05:35:11,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-14 05:35:11,758 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:35:11,758 INFO L215 NwaCegarLoop]: trace histogram [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, 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] [2024-11-14 05:35:11,773 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2024-11-14 05:35:11,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:35:11,959 INFO L396 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:35:11,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:35:11,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1263675245, now seen corresponding path program 1 times [2024-11-14 05:35:11,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:35:11,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134771974] [2024-11-14 05:35:11,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:35:11,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:35:11,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:35:11,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [760994322] [2024-11-14 05:35:11,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:35:11,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:35:11,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:35:11,984 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:35:11,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2024-11-14 05:35:12,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:35:12,056 INFO L255 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-14 05:35:12,057 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:35:12,537 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-14 05:35:12,537 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:35:13,637 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:35:13,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134771974] [2024-11-14 05:35:13,637 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:35:13,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [760994322] [2024-11-14 05:35:13,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [760994322] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:35:13,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [496400474] [2024-11-14 05:35:13,638 INFO L159 IcfgInterpreter]: Started Sifa with 55 locations of interest [2024-11-14 05:35:13,638 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:35:13,638 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:35:13,639 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:35:13,639 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:35:16,233 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 51 for LOIs [2024-11-14 05:35:16,238 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 05:35:16,247 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:35:24,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [496400474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:35:24,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:35:24,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [11] total 37 [2024-11-14 05:35:24,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481661537] [2024-11-14 05:35:24,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:35:24,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-14 05:35:24,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:35:24,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-14 05:35:24,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=225, Invalid=1755, Unknown=0, NotChecked=0, Total=1980 [2024-11-14 05:35:24,454 INFO L87 Difference]: Start difference. First operand 2447 states and 3024 transitions. Second operand has 28 states, 23 states have (on average 2.1739130434782608) internal successors, (50), 23 states have internal predecessors, (50), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 05:35:30,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:35:30,664 INFO L93 Difference]: Finished difference Result 2475 states and 3053 transitions. [2024-11-14 05:35:30,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-14 05:35:30,664 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 23 states have (on average 2.1739130434782608) internal successors, (50), 23 states have internal predecessors, (50), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 114 [2024-11-14 05:35:30,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:35:30,666 INFO L225 Difference]: With dead ends: 2475 [2024-11-14 05:35:30,667 INFO L226 Difference]: Without dead ends: 2469 [2024-11-14 05:35:30,667 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 177 SyntacticMatches, 53 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2047 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=574, Invalid=3332, Unknown=0, NotChecked=0, Total=3906 [2024-11-14 05:35:30,668 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 652 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 1495 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 653 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 1517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-14 05:35:30,668 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [653 Valid, 107 Invalid, 1517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1495 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-14 05:35:30,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2469 states. [2024-11-14 05:35:31,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2469 to 2447. [2024-11-14 05:35:31,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2447 states, 2353 states have (on average 1.2282192945176371) internal successors, (2890), 2378 states have internal predecessors, (2890), 66 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-14 05:35:31,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2447 states to 2447 states and 3022 transitions. [2024-11-14 05:35:31,074 INFO L78 Accepts]: Start accepts. Automaton has 2447 states and 3022 transitions. Word has length 114 [2024-11-14 05:35:31,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:35:31,075 INFO L471 AbstractCegarLoop]: Abstraction has 2447 states and 3022 transitions. [2024-11-14 05:35:31,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 23 states have (on average 2.1739130434782608) internal successors, (50), 23 states have internal predecessors, (50), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 05:35:31,075 INFO L276 IsEmpty]: Start isEmpty. Operand 2447 states and 3022 transitions. [2024-11-14 05:35:31,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-14 05:35:31,075 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:35:31,075 INFO L215 NwaCegarLoop]: trace histogram [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, 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 05:35:31,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Forceful destruction successful, exit code 0 [2024-11-14 05:35:31,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:35:31,276 INFO L396 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 05:35:31,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:35:31,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1083839157, now seen corresponding path program 1 times [2024-11-14 05:35:31,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:35:31,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246670883] [2024-11-14 05:35:31,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:35:31,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:35:31,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:35:31,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [464130927] [2024-11-14 05:35:31,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:35:31,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:35:31,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:35:31,306 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:35:31,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06beeb10-f3f3-422c-b2ce-4f5a3fb445e3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2024-11-14 05:35:31,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:35:31,379 INFO L255 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-14 05:35:31,381 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:35:31,963 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-14 05:35:31,963 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:35:33,469 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-14 05:35:33,470 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:35:33,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246670883] [2024-11-14 05:35:33,470 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:35:33,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [464130927] [2024-11-14 05:35:33,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [464130927] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:35:33,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [332246063] [2024-11-14 05:35:33,471 INFO L159 IcfgInterpreter]: Started Sifa with 57 locations of interest [2024-11-14 05:35:33,471 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:35:33,471 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:35:33,472 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:35:33,472 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:35:35,749 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 51 for LOIs [2024-11-14 05:35:35,756 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 05:35:35,764 INFO L180 IcfgInterpreter]: Interpretation finished